1
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Summers TJ, Diaz Sanchez J, Cantu DC. Effect of ion to ligand ratio on the aqueous to organic relative solubility of a lanthanide-ligand complex. Phys Chem Chem Phys 2024; 26:21612-21619. [PMID: 39086219 DOI: 10.1039/d4cp02586e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
In the solvent extraction of rare earth elements, mechanistic aspects remain unclear regarding where and how extractant molecules coordinate metal ions and transport them from the aqueous phase into the organic phase. Molecular dynamics simulations were used to examine how unprotonated di(2-ethylhexyl)phosphoric acid (DEHP-) ligands that coordinate the Gd3+ ion can transfer the ion across the water-organic interface. Using the umbrella sampling technique, potential of mean force profiles were constructed to quantify the relative solubility of the Gd3+ ion coordinated to 0-3 DEHP- ligands in either water, 1-octanol, or hexane solvents and at the water-organic interfaces. The simulations show the Gd-DEHP- complexes, at varying Ln-ligand ratios, preferentially solvate on water-organic interfaces. While the Gd(DEHP-)3 complex will diffuse past the aqueous-organic interface into the octanol solvent, it is thermodynamically preferred for the Gd(DEHP-)3 complex to remain in the water-hexane interface when there is no amphiphilic layer of excess ligand.
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Affiliation(s)
- Thomas J Summers
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV, USA.
| | - Jesus Diaz Sanchez
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV, USA.
| | - David C Cantu
- Department of Chemical and Materials Engineering, University of Nevada, Reno, Reno, NV, USA.
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2
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Walker L, Heath SL, Jiang J, Natrajan LS, Livens FR. Oligomer Formation Effects on the Separation of Trivalent Lanthanide Fission Products. Inorg Chem 2024; 63:13380-13391. [PMID: 38986132 PMCID: PMC11270979 DOI: 10.1021/acs.inorgchem.4c01272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 07/12/2024]
Abstract
The assessment of trivalent lanthanide yields from the fission of uranium-235 is currently achieved using LN (LaNthanide) resin, di(2-ethylhexyl)orthophosphoric acid immobilized on a solid support. However, coelution of lighter lanthanides into terbium (Tb3+) fractions remains a significant problem in recovery of analytically pure fractions. In order to understand how the separation of trivalent lanthanides and yttrium (Ln3+) with LN resin proceeds and how to improve it, their speciation with the organic extractant HDEHP must be fully understood under aqueous conditions. A comprehensive luminescence analysis of aqueous solutions of Ln3+ in contact with HDEHP, along with infrared spectroscopy, elemental combustion analysis, inductively coupled plasma atomic emission spectroscopy (ICP-AES), and mass spectrometry, was used to indicate that an intermediate species is responsible for the coelution; where similar Ln3+ centers (e.g., Eu3+ and Tb3+) are bridged by the O-P-O moiety of deprotonated HDEHP to form large heteronuclear oligomeric structures with the general formula [Ln2(DEHP)6]n. Energy transfer from Tb3+ to Eu3+ in this structure confirms that lanthanide centers are within 10 Å and was used to propose that the oligomeric [Ln2(DEHP)6]n structure is formed rather than a dimeric Ln2(DEHP)6 structure. The effect of this speciation on LN resin column elution is investigated using luminescence spectroscopy, confirming that the oligomeric [Ln2(DEHP)6]n species could disrupt regular elution behavior and cause the problematic bleeding of lighter lanthanides (Sm3+ and Eu3+) into Tb3+ fractions. Resin luminescence measurements were used to propose that the bleeding of the organic extractant HDEHP from its solid support causes the formation of the disruptive oligometallic species.
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Affiliation(s)
- Lauren
E. Walker
- Department
of Chemistry, Faculty of Science and Engineering, The University of Manchester, Manchester M13 9PL, U.K.
| | - Scott L. Heath
- Department
of Earth and Environmental Sciences, The
University of Manchester, Manchester M13 9PL, U.K.
| | | | - Louise S. Natrajan
- Department
of Chemistry, Faculty of Science and Engineering, The University of Manchester, Manchester M13 9PL, U.K.
| | - Francis R. Livens
- Department
of Chemistry, Faculty of Science and Engineering, The University of Manchester, Manchester M13 9PL, U.K.
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3
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Dunbar JR, Jensen MP. Influence of Di- n-butyl Phosphoric Acid on Cerium Redox and Speciation in Tri- n-butyl Phosphate. Inorg Chem 2024; 63:12839-12848. [PMID: 38949275 DOI: 10.1021/acs.inorgchem.4c01309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The effects of simulated radiolytic degradation of tri-n-butyl phosphate (TBP) on the chemical speciation of cerium were studied by spectrophotometry and electrochemistry of TBP solutions containing increasing amounts of di-n-butyl phosphoric acid (HDBP), a common degradation product of TBP. Tetravalent cerium was found to exchange coordinated nitrate for the dibutyl phosphate anion, forming dinuclear complexes of the formula (CeOCe)(NO3)(6-d)(DBP)d·3TBP (d = 0-3). Compared to Ce(IV), Ce(III) was complexed less strongly by HDBP in TBP, but HDBP displaced both nitrate and TBP to form the series of mononuclear complexes Ce(NO3)(3-d)(HDBP·DBP)d·(3-d)TBP (d = 0-3). Dibutyl phosphate coordination caused large negative shifts in the Ce(IV/III) reduction potential in TBP, indicating a strong stabilization of the tetravalent state. Electrochemical investigation of the reduction of Ce(IV) in TBP revealed it to be a two-electron process in accordance with the dinuclear nature of the organic-phase Ce(IV) complexes. The diffusion coefficients of the d = 0 dinuclear Ce(IV)-nitrate-TBP complex and mononuclear Ce(III)-nitrate-TBP complex in TBP equilibrated with 7 M HNO3 were determined to be (1.16 ± 0.06) × 10-7 cm2/s and (1.9 ± 0.4) × 10-7 cm2/s, respectively, which also is consistent with the larger molecular volume of the dinuclear Ce(IV) complexes.
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Affiliation(s)
- Joshua R Dunbar
- Chemistry Department, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Mark P Jensen
- Chemistry Department, Colorado School of Mines, Golden, Colorado 80401, United States
- Nuclear Science & Engineering Program, Colorado School of Mines, Golden, Colorado 80401, United States
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4
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Mangin T, Schurhammer R, Wipff G. Liquid-Liquid Extraction of the Eu(III) Cation by BTP Ligands into Ionic Liquids: Interfacial Features and Extraction Mechanisms Investigated by MD Simulations. J Phys Chem B 2022; 126:2876-2890. [PMID: 35389658 DOI: 10.1021/acs.jpcb.2c00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
What happens at the ionic-liquid (IL)/water interface when the Eu3+ cation is complexed and extracted by bis(dimethyltriazinyl) pyridine "BTP" ligands has been investigated by molecular dynamics and potential of mean force simulations on the interface crossing by key species: neutral BTP, its protonated BTPH+ form, Eu3+, and the Eu(BTP)33+ complex. At both the [BMI][Tf2N]/water and [OMI][Tf2N]/water interfaces, neither BTP nor Eu(BTP)33+ are found to adsorb. The distribution of Eu(BTP)23+ and Eu(BTP)3+ precursors of Eu(BTP)33+, and of their nitrate adducts, implies the occurrence of a stepwise complexation process in the interfacial domain, however. The analysis of the ionic content of the bulk phases and of their interface before and after extraction highlights the role of charge buffering by interfacial IL cations and anions, by different amounts depending on the IL. Comparison of ILs with octanol as the oil phase reveals striking differences regarding the extraction efficiency, the affinity of Eu(BTP)33+ for the interface, the effects of added nitric acid and of counterions (NO3- vs Tf2N-), charge neutralization mechanisms, and the extent of "oil" heterogeneity. Extraction into octanol is suggested to proceed via adsorption at the surface of water pools, nanoemulsions, or droplets, with marked counterion effects.
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Affiliation(s)
- Thomas Mangin
- Laboratoire MSM, UMR CNRS 7140, Université de Strasbourg, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Rachel Schurhammer
- Laboratoire MSM, UMR CNRS 7140, Université de Strasbourg, 4 Rue Blaise Pascal, 67000 Strasbourg, France
| | - Georges Wipff
- Laboratoire MSM, UMR CNRS 7140, Université de Strasbourg, 4 Rue Blaise Pascal, 67000 Strasbourg, France
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5
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Wu J, Li Z, Tan H, Du S, Liu T, Yuan Y, Liu X, Qiu H. Highly Selective Separation of Rare Earth Elements by Zn-BTC Metal-Organic Framework/Nanoporous Graphene via In Situ Green Synthesis. Anal Chem 2020; 93:1732-1739. [PMID: 33355452 DOI: 10.1021/acs.analchem.0c04407] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Rare earth elements (REEs) are used widely in devices of many fields, but it is still a troublesome task to achieve their selective separation and purification. Metal-organic frameworks (MOFs) as an emerging porous crystalline material have been used for selective separation of REEs using the size-selective crystallization properties. However, so far, almost all MOFs cannot be used directly for selective separation of REEs in strong acid via solid-state adsorption. Herein, a zinc-trimesic acid (Zn-BTC) MOF is grown by solid synthesis in situ on ZnO nanoparticles covering nanoporous graphene for preparing Zn-BTC MOF/nanoporous graphene composites with strong acid resistance. The adsorption capacity of the resulting composites to REEs is highly sensitive to the ionic radius, which may be attributed to the fact that the REE ions coordinate with O to form a stable structure. The selectivity of Ce/Lu is ≈10,000, and it is extremely important that the selectivity between adjacent REEs (e.g., Nd/Pr) is as high as ≈9.8, so the composite exhibits the best separation performance so far. This work provides a green, facile, scale, and effective synthesis strategy of Zn-BTC MOF/nanoporous graphene, which is hopefully applied directly in the separation industries of REEs.
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Affiliation(s)
- Jinsheng Wu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.,Lanzhou Ecological Environment Monitoring Center of Gansu Province, Lanzhou 730000, China
| | - Zhan Li
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Hongxin Tan
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shaobo Du
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Tianqi Liu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yanli Yuan
- Lanzhou Ecological Environment Monitoring Center of Gansu Province, Lanzhou 730000, China
| | - Xiuhui Liu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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6
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Geist A, Berthon L, Charbonnel MC, Müllich U. Extraction of Nitric Acid, Americium(III), Curium(III), and Lanthanides(III) into DMDOHEMA Dissolved in Kerosene. SOLVENT EXTRACTION AND ION EXCHANGE 2020. [DOI: 10.1080/07366299.2020.1794523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Andreas Geist
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Karlsruhe, Germany
| | - Laurence Berthon
- CEA, DES, ISEC, DMRC, University of Montpellier, Marcoule, France
| | | | - Udo Müllich
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), Karlsruhe, Germany
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7
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Hall GB, Holfeltz VE, Campbell EL, Boglaienko D, Lumetta GJ, Levitskaia TG. Evolution of Acid-Dependent Am3+ and Eu3+ Organic Coordination Environment: Effects on the Extraction Efficiency. Inorg Chem 2020; 59:4453-4467. [DOI: 10.1021/acs.inorgchem.9b03612] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gabriel B. Hall
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Vanessa E. Holfeltz
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Emily L. Campbell
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Daria Boglaienko
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Gregg J. Lumetta
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Tatiana G. Levitskaia
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
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8
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Dwadasi BS, Goverapet Srinivasan S, Rai B. Interfacial structure in the liquid-liquid extraction of rare earth elements by phosphoric acid ligands: a molecular dynamics study. Phys Chem Chem Phys 2020; 22:4177-4192. [PMID: 32040116 DOI: 10.1039/c9cp05719f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solvent extraction (SX), wherein two immiscible liquids, one containing the extractant molecules and the other containing the solute to be extracted are brought in contact to effect the phase transfer of the solute, underpins metal extraction and recovery processes. The interfacial region is of utmost importance in the SX process, since besides thermodynamics, the physical and chemical heterogeneity at the interface governs the kinetics of the process. Yet, a fundamental understanding of this heterogeneity and its implications for the extraction mechanism are currently lacking. We use molecular dynamics (MD) simulations to study the liquid-liquid interface under conditions relevant to the SX of Rare Earth Elements (REEs) by a phosphoric acid ligand. Simulations revealed that the extractant molecules and varying amounts of acid and metal ions partitioned to the interface. The presence of these species had a significant effect on the interfacial thickness, hydrogen bond life times and orientations of the water molecules at the interface. Deprotonation of the ligands was essential for the adsorption of the metal ions at the interface, with these ions forming a number of different complexes at the interface involving one to three extractant molecules and four to eight water molecules. Although the interface itself was rough, no obvious 'finger-like' water protrusions penetrating the organic phase were seen in our simulations. While the results of our work help us gain fundamental insights into the sequence of events leading to the formation of a variety of interfacial complexes, they also emphasize the need to carry out a more detailed atomic level study to understand the full mechanism of extraction of REEs from the aqueous to organic phases by phosphoric acid ligands.
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Affiliation(s)
- Balarama Sridhar Dwadasi
- TCS Research, Tata Research Development and Design Center, 54-B Hadapsar Industrial Estate, Hadapsar, Pune - 411013, Maharashtra, India.
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9
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Wang CZ, Lan JH, Wu QY, Chai ZF, Shi WQ. Theoretical insights on the complexation of Am(III) and Cm(III) with amide-type ligands. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06804-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Klaß L, Wilden A, Kreft F, Wagner C, Geist A, Panak PJ, Herdzik-Koniecko I, Narbutt J, Modolo G. Evaluation of the Hydrophilic Complexant N,N,N’,N’-tetraethyldiglycolamide (TEDGA) and its Methyl-substituted Analogues in the Selective Am(III) Separation. SOLVENT EXTRACTION AND ION EXCHANGE 2019. [DOI: 10.1080/07366299.2019.1651039] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Larissa Klaß
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
| | - Andreas Wilden
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
| | - Fabian Kreft
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
| | - Christoph Wagner
- Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Andreas Geist
- Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Petra J. Panak
- Institute for Nuclear Waste Disposal (INE), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- Physikalisch Chemisches Institut (PCI), Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
| | - Irena Herdzik-Koniecko
- Institute of Nuclear Chemistry and Technology (ICHTJ), Centre for Radiochemistry and Nuclear Chemistry, Warsaw, Poland
| | - Jerzy Narbutt
- Institute of Nuclear Chemistry and Technology (ICHTJ), Centre for Radiochemistry and Nuclear Chemistry, Warsaw, Poland
| | - Giuseppe Modolo
- Forschungszentrum Jülich GmbH (FZJ), Institut für Energie- und Klimaforschung, Nukleare Entsorgung und Reaktorsicherheit (IEK-6), Jülich, Germany
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11
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Lapka JL, Wahu S, Sinkov S, Nash KL. Ternary Complex Formation and Extraction Modeling in Malonate-Buffered Trivalent Actinide–Lanthanide Separations. Inorg Chem 2019; 58:7554-7563. [DOI: 10.1021/acs.inorgchem.9b00808] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joseph L. Lapka
- Chemistry Department, Washington State University, Pullman, Washington 99164, United States
| | - Sandrine Wahu
- Chemistry Department, Washington State University, Pullman, Washington 99164, United States
| | - Sergey Sinkov
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Kenneth L. Nash
- Chemistry Department, Washington State University, Pullman, Washington 99164, United States
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12
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Špadina M, Bohinc K, Zemb T, Dufrêche JF. Colloidal Model for the Prediction of the Extraction of Rare Earths Assisted by the Acidic Extractant. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:3215-3230. [PMID: 30673246 PMCID: PMC6488188 DOI: 10.1021/acs.langmuir.8b03846] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/19/2019] [Indexed: 05/28/2023]
Abstract
We propose the statistical thermodynamic model for the prediction of the liquid-liquid extraction efficiency in the case of rare-earth metal cations using the common bis(2-ethyl-hexyl)phosphoric acid (HDEHP) extractant. In this soft matter-based approach, the solutes are modeled as colloids. The leading terms in free-energy representation account for: the complexation, the formation of a highly curved extractant film, lateral interactions between the different extractant head groups in the film, configurational entropy of ions and water molecules, the dimerization, and the acidity of the HDEHP extractant. We provided a full framework for the multicomponent study of extraction systems. By taking into account these different contributions, we are able to establish the relation between the extraction and general complexation at any pH in the system. This further allowed us to rationalize the well-defined optimum in the extraction engineering design. Calculations show that there are multiple extraction regimes even in the case of lanthanide/acid system only. Each of these regimes is controlled by the formation of different species in the solvent phase, ranging from multiple metal cation-filled aggregates (at the low acid concentrations in the aqueous phase), to the pure acid-filled aggregates (at the high acid concentrations in the aqueous phase). These results are contrary to a long-standing opinion that liquid-liquid extraction can be modeled with only a few species. Therefore, a traditional multiple equilibria approach is abandoned in favor of polydisperse spherical aggregate formations, which are in dynamic equilibrium.
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Affiliation(s)
- Mario Špadina
- ICSM,
CEA, CNRS, ENSCM, University of Montpellier, 34199 Marcoule, France
| | - Klemen Bohinc
- Faculty
of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Thomas Zemb
- ICSM,
CEA, CNRS, ENSCM, University of Montpellier, 34199 Marcoule, France
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13
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Abstract
The rare earths (REs) are a family of 17 elements that exhibit pronounced chemical similarities as a group, while individually expressing distinctive and varied electronic properties. These atomistic electronic properties are extraordinarily useful and motivate the application of REs in many technologies and devices. From their discovery to the present day, a major challenge faced by chemists has been the separation of RE elements, which has evolved from tedious crystallization to highly engineered solvent extraction schemes. The increasing incorporation and dependence of REs in technology have raised concerns about their sustainability and motivated recent studies for improved separations to achieve a circular RE economy.
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14
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Dwadasi BS, Gupta S, Daware S, Goverapet Srinivasan S, Rai B. Differential Stabilization of the Metal–Ligand Complexes between Organic and Aqueous Phases Drives the Selectivity of Phosphoric Acid Ligands toward Heavier Rare Earth Elements. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03423] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Balarama Sridhar Dwadasi
- TCS Research, Tata Research Development and Design Centre, 54-B Hadapsar Industrial Estate, Hadapsar, Pune − 411013, Maharashtra, India
| | - Shally Gupta
- TCS Research, Tata Research Development and Design Centre, 54-B Hadapsar Industrial Estate, Hadapsar, Pune − 411013, Maharashtra, India
| | - Santosh Daware
- TCS Research, Tata Research Development and Design Centre, 54-B Hadapsar Industrial Estate, Hadapsar, Pune − 411013, Maharashtra, India
| | - Sriram Goverapet Srinivasan
- TCS Research, Tata Research Development and Design Centre, 54-B Hadapsar Industrial Estate, Hadapsar, Pune − 411013, Maharashtra, India
| | - Beena Rai
- TCS Research, Tata Research Development and Design Centre, 54-B Hadapsar Industrial Estate, Hadapsar, Pune − 411013, Maharashtra, India
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15
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Abstract
During solvent extraction, amphiphilic extractants assist the transport of metal ions across the liquid-liquid interface between an aqueous ionic solution and an organic solvent. Investigations of the role of the interface in ion transport challenge our ability to probe fast molecular processes at liquid-liquid interfaces on nanometer-length scales. Recent development of a thermal switch for solvent extraction has addressed this challenge, which has led to the characterization by X-ray surface scattering of interfacial intermediate states in the extraction process. Here, we review and extend these earlier results. We find that trivalent rare earth ions, Y(III) and Er(III), combine with bis(hexadecyl) phosphoric acid (DHDP) extractants to form inverted bilayer structures at the interface; these appear to be condensed phases of small ion-extractant complexes. The stability of this unconventional interfacial structure is verified by molecular dynamics simulations. The ion-extractant complexes at the interface are an intermediate state in the extraction process, characterizing the moment at which ions have been transported across the aqueous-organic interface, but have not yet been dispersed in the organic phase. In contrast, divalent Sr(II) forms an ion-extractant complex with DHDP that leaves it exposed to the water phase; this result implies that a second process that transports Sr(II) across the interface has yet to be observed. Calculations demonstrate that the budding of reverse micelles formed from interfacial Sr(II) ion-extractant complexes could transport Sr(II) across the interface. Our results suggest a connection between the observed interfacial structures and the extraction mechanism, which ultimately affects the extraction selectivity and kinetics.
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16
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Breshears AT, Brown MA, Bloom I, Barnes CL, Gelis AV. Synthesis of hexavalent molybdenum formo- and aceto-hydroxamates and deferoxamine via liquid-liquid metal partitioning. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.12.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Gullekson BJ, Brown MA, Paulenova A, Gelis AV. Speciation of Select f-Elements with Lipophilic Phosphorus Acids and Diglycol Amides in the ALSEP Backward-Extraction Regime. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02379] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brian J. Gullekson
- School
of Nuclear Science and Engineering, Oregon State University, 3451 SW Jefferson Way, Corvallis, Oregon 97333, United States
| | - M. Alex Brown
- Nuclear
Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Building 205, Argonne, Illinois 60439, United States
| | - Alena Paulenova
- School
of Nuclear Science and Engineering, Oregon State University, 3451 SW Jefferson Way, Corvallis, Oregon 97333, United States
| | - Artem V. Gelis
- Nuclear
Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Building 205, Argonne, Illinois 60439, United States
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18
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Qiao B, Muntean JV, Olvera de la Cruz M, Ellis RJ. Ion Transport Mechanisms in Liquid-Liquid Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6135-6142. [PMID: 28558243 DOI: 10.1021/acs.langmuir.7b01230] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Interfacial liquid-liquid ion transport is of crucial importance to biotechnology and industrial separation processes including nuclear elements and rare earths. A water-in-oil microemulsion is formulated here with density and dimensions amenable to atomistic molecular dynamics simulation, facilitating convergent theoretical and experimental approaches to elucidate interfacial ion transport mechanisms. Lutetium(III) cations are transported from the 5 nm diameter water pools into the surrounding oil using an extractant (a lipophilic ligand). Changes in ion coordination sphere and interactions between the interfacial components are studied using a combination of synchrotron X-ray scattering, spectroscopy, and atomistic molecular dynamics simulations. Contrary to existing hypotheses, our model system shows no evidence of interfacial extractant monolayers, but rather ions are exchanged through water channels that penetrate the surfactant monolayer and connect to the oil-based extractant. Our results highlight the dynamic nature of the oil-water interface and show that lipophilic ion shuttles need not form flat monolayer structures to facilitate ion transport across the liquid-liquid interface.
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Affiliation(s)
- Baofu Qiao
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - John V Muntean
- Chemical Sciences & Engineering Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Monica Olvera de la Cruz
- Department of Materials Science and Engineering, Northwestern University , Evanston, Illinois 60208, United States
| | - Ross J Ellis
- Chemical Sciences Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States
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19
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Sharma S, Panja S, Bhattacharyya A, Dhami PS, Gandhi PM, Ghosh SK. Synthesis and extraction studies with a rationally designed diamide ligand selective to actinide(iv) pertinent to the plutonium uranium redox extraction process. Dalton Trans 2017; 45:7737-47. [PMID: 27054892 DOI: 10.1039/c6dt00748a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of conformationally constrained oxa-bridged tricyclo-dicarboxamide (OTDA) ligand was rationally designed for the selective extraction of tetravalent actinides pertinent to the Plutonium Uranium Redox EXtraction (PUREX) process. Two of the designed diamide ligands were synthesized and extraction studies were performed for Pu(iv) from HNO3 medium. The mechanism of extraction was investigated by studying various parameters such as feed HNO3, NaNO3 and OTDA concentrations. The nature of the extracted species was found to be [Pu(NO3)4(OTDA)]. One of the OTDA ligands was elaborately tested and showed the selective extraction of Pu(iv) and Np(iv) over other actinide species, viz., U(vi), Np(v), Am(iii), lanthanides and fission products contained in a nuclear waste from the PUREX process. DFT calculations predicted the charge density on each of the coordinating 'O' atoms of OTDA supporting its high Pu(iv) selectivity over other ions studied and also provided the energy optimized structure of OTDA and its Pu(iv) complex.
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Affiliation(s)
- Shikha Sharma
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Surajit Panja
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | | | - Prem S Dhami
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Preetam M Gandhi
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Sunil K Ghosh
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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20
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Ellis RJ. Acid-switched Eu(III) coordination inside reverse aggregates: Insights into a synergistic liquid-liquid extraction system. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Qi XH, Du KZ, Feng ML, Gao YJ, Huang XY, Kanatzidis MG. Layered A2Sn3S7·1.25H2O (A = Organic Cation) as Efficient Ion-Exchanger for Rare Earth Element Recovery. J Am Chem Soc 2017; 139:4314-4317. [DOI: 10.1021/jacs.7b00565] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing-Hui Qi
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Ke-Zhao Du
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Mei-Ling Feng
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yu-Jie Gao
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Xiao-Ying Huang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Mercouri G. Kanatzidis
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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22
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Chen Y, Duvail M, Guilbaud P, Dufrêche JF. Stability of reverse micelles in rare-earth separation: a chemical model based on a molecular approach. Phys Chem Chem Phys 2017; 19:7094-7100. [DOI: 10.1039/c6cp07843e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new molecular approach based on molecular dynamics simulations is proposed to investigate the stability of reverse micelles containing strategic metals in organic solution.
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Affiliation(s)
- Yushu Chen
- Institut de Chimie Séparative de Marcoule (ICSM)
- UMR 5257
- CEA-CNRS-Université Montpellier-ENSCM
- Site de Marcoule
- F-30207 Bagnols-sur-Cèze Cedex
| | - Magali Duvail
- Institut de Chimie Séparative de Marcoule (ICSM)
- UMR 5257
- CEA-CNRS-Université Montpellier-ENSCM
- Site de Marcoule
- F-30207 Bagnols-sur-Cèze Cedex
| | - Philippe Guilbaud
- CEA Marcoule
- Nuclear Energy Division
- RadioChemistry & Processes Department (DRCP)
- Site de Marcoule
- F-30207 Bagnols-sur-Cèze Cedex
| | - Jean-François Dufrêche
- Institut de Chimie Séparative de Marcoule (ICSM)
- UMR 5257
- CEA-CNRS-Université Montpellier-ENSCM
- Site de Marcoule
- F-30207 Bagnols-sur-Cèze Cedex
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23
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Braatz AD, Antonio MR, Nilsson M. Structural study of complexes formed by acidic and neutral organophosphorus reagents. Dalton Trans 2017; 46:1194-1206. [DOI: 10.1039/c6dt04305d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The coordination of the trivalent 4f ions, Ln = La3+, Dy3+, and Lu3+, with neutral and acidic organophosphorus reagents, both individually and combined, was studied by use of X-ray absorption spectroscopy.
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Affiliation(s)
- Alexander D. Braatz
- Department of Chemical Engineering and Materials Science
- University of California Irvine
- Irvine
- USA
- Nuclear Security and Isotope Technology Division
| | - Mark R. Antonio
- Chemical Sciences & Engineering Division
- Argonne National Laboratory
- Lemont
- USA
| | - Mikael Nilsson
- Department of Chemical Engineering and Materials Science
- University of California Irvine
- Irvine
- USA
- Department of Chemistry
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24
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Antonio MR, Ellis RJ, Estes SL, Bera MK. Structural insights into the multinuclear speciation of tetravalent cerium in the tri-n-butyl phosphate–n-dodecane solvent extraction system. Phys Chem Chem Phys 2017; 19:21304-21316. [DOI: 10.1039/c7cp03350h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Macroscopic phase behaviors in the liquid–liquid extraction are explained by microscopic, reverse micellar fluid structures containing tetranuclear Ce(iv) clusters revealed by use of X-ray spectroscopy and scattering of the light and dense organic phases.
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Affiliation(s)
- Mark R. Antonio
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
| | - Ross J. Ellis
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
| | - Shanna L. Estes
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
| | - Mrinal K. Bera
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
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25
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Gullekson BJ, Breshears AT, Brown MA, Essner JB, Baker GA, Walensky JR, Paulenova A, Gelis AV. Extraction of Water and Speciation of Trivalent Lanthanides and Americium in Organophosphorus Extractants. Inorg Chem 2016; 55:12675-12685. [DOI: 10.1021/acs.inorgchem.6b01756] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian J. Gullekson
- School of Nuclear
Science and Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Andrew T. Breshears
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - M. Alex Brown
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Jeremy B. Essner
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Gary A. Baker
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Justin R. Walensky
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, United States
| | - Alena Paulenova
- School of Nuclear
Science and Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Artem V. Gelis
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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26
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27
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A predictive model of reverse micelles solubilizing water for solvent extraction. J Colloid Interface Sci 2016; 479:106-114. [DOI: 10.1016/j.jcis.2016.06.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/17/2016] [Accepted: 06/17/2016] [Indexed: 11/22/2022]
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28
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Structure, Bonding, and Electronic Properties of Four Rare Earth Complexes with a Phenoxyacetic Acid Ligand: X-ray Diffraction and DFT Studies. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b01077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Goryunov EI, Matveeva AG, Safiulina AM, Goryunova IB, Bodrin GV, Brel VK. α- and β-diphenylphosphorylated secondary alkanols: I. general method of synthesis and extraction properties towards f-elements. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216030208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Lumetta GJ, Sinkov SI, Krause JA, Sweet LE. Neodymium(III) Complexes of Dialkylphosphoric and Dialkylphosphonic Acids Relevant to Liquid–Liquid Extraction Systems. Inorg Chem 2016; 55:1633-41. [DOI: 10.1021/acs.inorgchem.5b02524] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Jeanette A. Krause
- The Richard C. Elder X-ray Crystallography Facility, Chemistry Department, University of Cincinnati, Cincinnati, Ohio 45221, United States
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31
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Insights into coextraction of water and ammonia with nickel(II) through structural investigation. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Ellis RJ, Bera MK, Reinhart B, Antonio MR. Trapped in the coordination sphere: nitrate ion transfer driven by the cerium(iii/iv) redox couple. Phys Chem Chem Phys 2016; 18:31254-31259. [DOI: 10.1039/c6cp06528g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrochemical transfer of nitrate anions between oil and water phases—driven by the reduction and oxidation of cerium coordination complexes in oil phases—provides a new entry into chemical separations where an electrode potential tunes solute transfer between phases by ‘trapping’ the migrating anion on the cerium cation.
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Affiliation(s)
- Ross J. Ellis
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
| | - Mrinal K. Bera
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
| | | | - Mark R. Antonio
- Chemical Sciences and Engineering Division
- Argonne National Laboratory
- Argonne
- USA
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33
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Qiao B, Ferru G, Olvera de la Cruz M, Ellis RJ. Molecular Origins of Mesoscale Ordering in a Metalloamphiphile Phase. ACS CENTRAL SCIENCE 2015; 1:493-503. [PMID: 27163014 PMCID: PMC4827664 DOI: 10.1021/acscentsci.5b00306] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Indexed: 05/19/2023]
Abstract
Controlling the assembly of soft and deformable molecular aggregates into mesoscale structures is essential for understanding and developing a broad range of processes including rare earth extraction and cleaning of water, as well as for developing materials with unique properties. By combined synchrotron small- and wide-angle X-ray scattering with large-scale atomistic molecular dynamics simulations we analyze here a metalloamphiphile-oil solution that organizes on multiple length scales. The molecules associate into aggregates, and aggregates flocculate into meso-ordered phases. Our study demonstrates that dipolar interactions, centered on the amphiphile headgroup, bridge ionic aggregate cores and drive aggregate flocculation. By identifying specific intermolecular interactions that drive mesoscale ordering in solution, we bridge two different length scales that are classically addressed separately. Our results highlight the importance of individual intermolecular interactions in driving mesoscale ordering.
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Affiliation(s)
- Baofu Qiao
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Argonne, Illinois 60439, United States
- E-mail:
| | - Geoffroy Ferru
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Argonne, Illinois 60439, United States
| | - Monica Olvera de la Cruz
- Department of Materials
Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Ross J. Ellis
- Chemical
Sciences and Engineering Division, Argonne
National Laboratory, Argonne, Illinois 60439, United States
- E-mail:
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34
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Ellis RJ, Demars T, Liu G, Niklas J, Poluektov OG, Shkrob IA. In the Bottlebrush Garden: The Structural Aspects of Coordination Polymer Phases formed in Lanthanide Extraction with Alkyl Phosphoric Acids. J Phys Chem B 2015; 119:11910-27. [DOI: 10.1021/acs.jpcb.5b05679] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ross J. Ellis
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Thomas Demars
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Guokui Liu
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Jens Niklas
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Oleg G. Poluektov
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Ilya A. Shkrob
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
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35
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Simultaneous lanthanides and surfactants micelles removal from aqueous outflows by complexation and sol–gel chemistry. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.02.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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36
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Antonio MR, McAlister DR, Horwitz EP. An europium(iii) diglycolamide complex: insights into the coordination chemistry of lanthanides in solvent extraction. Dalton Trans 2015; 44:515-21. [DOI: 10.1039/c4dt01775g] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A cationic europium(iii) complex with three neutral diglycolamide ligands (for Rn-C8H17) was prepared as the bismuth tetrachloride salt revealing a 9-O inner-sphere environment with 6 distant carbonyl (Ca) and 6 ether (Cb) carbon atoms in the Eu L3-edge EXAFS.
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Affiliation(s)
- Mark R. Antonio
- Chemical Sciences & Engineering Division
- Argonne National Laboratory
- Argonne
- USA
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37
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Bu W, Mihaylov M, Amoanu D, Lin B, Meron M, Kuzmenko I, Soderholm L, Schlossman ML. X-ray Studies of Interfacial Strontium–Extractant Complexes in a Model Solvent Extraction System. J Phys Chem B 2014; 118:12486-500. [DOI: 10.1021/jp508430e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | | | | | - Binhua Lin
- Center
for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
| | - Mati Meron
- Center
for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
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38
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Bu W, Yu H, Luo G, Bera MK, Hou B, Schuman AW, Lin B, Meron M, Kuzmenko I, Antonio MR, Soderholm L, Schlossman ML. Observation of a Rare Earth Ion–Extractant Complex Arrested at the Oil–Water Interface During Solvent Extraction. J Phys Chem B 2014; 118:10662-74. [DOI: 10.1021/jp505661e] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Wei Bu
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Hao Yu
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | | | - Mrinal K. Bera
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Binyang Hou
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Adam W. Schuman
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Binhua Lin
- Center
for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
| | - Mati Meron
- Center
for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, United States
| | | | | | | | - Mark L. Schlossman
- Department
of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
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39
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Shusterman J, Mason H, Bruchet A, Zavarin M, Kersting AB, Nitsche H. Analysis of trivalent cation complexation to functionalized mesoporous silica using solid-state NMR spectroscopy. Dalton Trans 2014; 43:16649-58. [PMID: 25265419 DOI: 10.1039/c4dt02380c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first comprehensive study of Al(iii) and Sc(iii) interactions with a novel hybrid material, N-[5-(trimethoxysilyl)-2-aza-1-oxopentyl]caprolactam functionalized mesoporous silica, was conducted using solid-state NMR spectroscopy.
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Affiliation(s)
| | - Harris Mason
- Glenn T. Seaborg Institute
- Physical and Life Sciences Directorate
- Lawrence Livermore National Laboratory
- Livermore, USA
| | - Anthony Bruchet
- Department of Chemistry
- University of California
- Berkeley
- Berkeley, USA
| | - Mavrik Zavarin
- Glenn T. Seaborg Institute
- Physical and Life Sciences Directorate
- Lawrence Livermore National Laboratory
- Livermore, USA
| | - Annie B. Kersting
- Glenn T. Seaborg Institute
- Physical and Life Sciences Directorate
- Lawrence Livermore National Laboratory
- Livermore, USA
| | - Heino Nitsche
- Department of Chemistry
- University of California
- Berkeley
- Berkeley, USA
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40
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Hu J, Chen Q, Hu H, Jiang Z, Wang D, Wang S, Li Y. Microscopic Insights into Extraction Mechanism of Copper(II) in Ammoniacal Solutions Studied by X-ray Absorption Spectroscopy and Density Functional Theory Calculation. J Phys Chem A 2013; 117:12280-7. [DOI: 10.1021/jp404768e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiugang Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Resources Chemistry of Nonferrous Metals,
Ministry of Education, Central South University, Changsha 410083, China
| | - Qiyuan Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Resources Chemistry of Nonferrous Metals,
Ministry of Education, Central South University, Changsha 410083, China
| | - Huiping Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Resources Chemistry of Nonferrous Metals,
Ministry of Education, Central South University, Changsha 410083, China
| | - Zheng Jiang
- Shanghai Synchrotron Radiation Facility,
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Duo Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Shubin Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yaomin Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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41
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Periodic Behavior of Lanthanide Coordination within Reverse Micelles. Chemistry 2013; 19:2663-75. [DOI: 10.1002/chem.201202880] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Indexed: 11/07/2022]
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42
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Hu J, Chen Q, Hu H, Chen X, Hu F, Yin Z. XAS investigation on the coordination structure and extraction mechanism of zinc(II) in ammoniacal solution. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Yang Y, Alexandratos SD. Polymer-supported urea: The effect of hydrogen bonding on lanthanide ion affinities. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Yano M, Takemoto H, Tatsumi M, Miyake H, Tsukube H. Preferential Crystallization of Lanthanoid Tris(β-diketonates) with Bridged Bis(2-pyridylmethyl)amine Ligands toward Separation Application. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2012. [DOI: 10.1246/bcsj.20110281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masafumi Yano
- Faculty of Chemistry, Material and Bioengineering, Kansai University
| | - Hidehiro Takemoto
- Faculty of Chemistry, Material and Bioengineering, Kansai University
| | - Masakazu Tatsumi
- Faculty of Chemistry, Material and Bioengineering, Kansai University
| | - Hiroyuki Miyake
- Department of Chemistry, Graduate School of Science, Osaka City University
| | - Hiroshi Tsukube
- Department of Chemistry, Graduate School of Science, Osaka City University
- JST-CREST, Osaka City University
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Ellis RJ, Antonio MR. Coordination structures and supramolecular architectures in a cerium(III)-malonamide solvent extraction system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:5987-5998. [PMID: 22420768 DOI: 10.1021/la3002916] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The process chemistry and solution structures investigated in the title system bridge the three ostensibly disparate fields of separation sciences, soft matter research, and coordination chemistry. We have explored this subject with synchrotron radiation research and advanced analyses leading to original insights into aggregation phenomena in solvent extraction. Herein we present findings showing the coagulation of reverse micelles into wormlike aggregates in organic phases (N,N'-dimethyl-N,N'-dibutyltetradecylmalonamide-abbreviated as DMDBTDMA-in n-dodecane) obtained by liquid-liquid extraction following contact with acidic and neutral aqueous media containing trivalent cerium. The growth of solute architectures was shown to prelude phase transition (i.e., the formation of a "third phase"). The presence of acid was shown to promote the growth of these micellar chains and, therefore, promoted third-phase formation. Acid was also shown to hydrate and swell the reverse micelle units, preorganizing them to allow for incorporation of cerium, leading to different coordination structures and enhanced metal extraction. The approach of linking both the coordination environment and supramolecular structures to the process properties of a solvent extraction system in a single study provides perspectives that are not available from independent, uncorrelated experimentation. Moreover, the analysis of small-angle X-ray scattering data from a solvent extraction system using the generalized indirect Fourier transform method to gain real-space information led to insights not otherwise available, showing that micellar assemblies are larger and more ordered than previously thought. This multipronged and multidisciplinary investigation opens new avenues in the evolving understanding of solute architectures in organic phases of practical relevance to solvent extraction and, simultaneously, of fundamental relevance to structured fluids and, in particular, phase transition phenomena.
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Affiliation(s)
- Ross J Ellis
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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Wu S, Kegler P, Wang S, Holzheid A, Depmeier W, Malcherek T, Alekseev EV, Albrecht-Schmitt TE. Rich Coordination of Nd3+ in Mg2Nd13(BO3)8(SiO4)4(OH)3, Derived from High-Pressure/High-Temperature Conditions. Inorg Chem 2012; 51:3941-3. [DOI: 10.1021/ic3002493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shijun Wu
- Institut für Geowissenschaften, Universität zu Kiel, 24118 Kiel, Germany
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640 Guangzhou, China
| | - Philip Kegler
- Institut für Geowissenschaften, Universität zu Kiel, 24118 Kiel, Germany
| | - Shuao Wang
- Department of Chemistry
and Biochemistry and Department of Civil
Engineering and Geological Sciences, University of Notre Dame, South Bend, Indiana 46556, United States
| | - Astrid Holzheid
- Institut für Geowissenschaften, Universität zu Kiel, 24118 Kiel, Germany
| | - Wulf Depmeier
- Institut für Geowissenschaften, Universität zu Kiel, 24118 Kiel, Germany
| | - Thomas Malcherek
- Mineralogisch-Petrographisches
Institut, Universität Hamburg, 20146
Hamburg, Germany
| | - Evgeny V. Alekseev
- Forschungszentrum
Jülich
GmbH, Institute for Energy and Climate Research (IEK-6), 52428 Jülich, Germany
| | - Thomas E. Albrecht-Schmitt
- Department of Chemistry
and Biochemistry and Department of Civil
Engineering and Geological Sciences, University of Notre Dame, South Bend, Indiana 46556, United States
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Marie C, Hiscox B, Nash KL. Characterization of HDEHP-lanthanide complexes formed in a non-polar organic phase using 31P NMR and ESI-MS. Dalton Trans 2012; 41:1054-64. [DOI: 10.1039/c1dt11534k] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Meridiano Y, Berthon L, Crozes X, Sorel C, Dannus P, Antonio MR, Chiarizia R, Zemb T. Aggregation in Organic Solutions of Malonamides: Consequences for Water Extraction. SOLVENT EXTRACTION AND ION EXCHANGE 2009. [DOI: 10.1080/07366290903270148] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Antonio MR, Chiang MH, Seifert S, Tiede DM, Thiyagarajan P. In situ measurement of the Preyssler polyoxometalate morphology upon electrochemical reduction: A redox system with Born electrostatic ion solvation behavior. J Electroanal Chem (Lausanne) 2009. [DOI: 10.1016/j.jelechem.2008.11.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Antonio MR, Chiarizia R, Gannaz B, Berthon L, Zorz N, Hill C, Cote G. Aggregation in Solvent Extraction Systems Containing a Malonamide, a Dialkylphosphoric Acid and their Mixtures. SEP SCI TECHNOL 2008. [DOI: 10.1080/01496390802121537] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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