1
|
Atanassova M, Kukeva R, Kurteva V. New Sustainable Solvent Extraction Pathways for Rare Earth Metals via Oximes Molecules. Molecules 2023; 28:7467. [PMID: 38005189 PMCID: PMC10673299 DOI: 10.3390/molecules28227467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
A study on the synergistic extraction of Eu(III) ions with a series of chelating ligands and determination of the process parameters is presented by employing ionic liquids and typical organic diluents. The investigations of the liquid-liquid extraction, commonly applied in the separation science of 4f and 5f-ions acidic chelating compounds, 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HP), 4-benzoyl-3-phenyl-5-isoxazolone (HPBI), and 2-thenoyltrifluoroacetone (HTTA) alone and in combination with two synergistic agents, meso-hexamethylpropyleneamine oxime (S2: HM-PAO) and its bis-imine precursor (S1: pre-HM-PAO), are presented. The interaction between the two extractants (acidic/neutral) in deuterochloroform was studied using 1H, 13C, and 1H-1H NOESY experiments. Several conclusions are given highlighting the role of the ionic diluent in complexation processes and selectivity with an employment of the two synergistic agents for various metal s-, p-, d-, and f-cations in the Periodic table, with almost 25 metal ions. The objective was to optimize a system for 4f-ions solvent extraction based on the new oxime molecules with β-diketone/isoxazolone/pyrazolone partnership. As detailed above, slight enhancements of extraction efficiencies were obtained either by using basic synergistic agents such as HM-PAO and/or using pre-HM-PAO. A competitive solvent extraction test of nearly 18 f-ions by various ligands (HTTA, S1, S2, and HPBI) and the two mixtures HTTA-S1 and HTTA-S2 diluted in ILs or organic diluents was also conducted in order to evaluate the switchable diluent impact. Additionally, electron paramagnetic resonance (EPR) spectroscopy was used to study the established chemical species with Cu2+ cations in the obtained organic extracts involving the two synergistic molecules.
Collapse
Affiliation(s)
- Maria Atanassova
- Department of General and Inorganic Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Okhridski Blvd., 1756 Sofia, Bulgaria
| | - Rositsa Kukeva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 11, 1113 Sofia, Bulgaria
| | - Vanya Kurteva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 9, 1113 Sofia, Bulgaria
| |
Collapse
|
2
|
3-Methyl-1-phenyl-4-thioacetylpyrazol-5-one. MOLBANK 2023. [DOI: 10.3390/m1588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
The novel compound 3-methyl-1-phenyl-4-thioacetylpyrazol-5-one is obtained in excellent yield via a thionation of the corresponding oxygen analogue. The product is isolated in pure form using column chromatography and is characterised using 1D and 2D NMR experiments, ATR IR and HRMS spectra, and single-crystal XRD.
Collapse
|
3
|
Assessment of the Equilibrium Constants of Mixed Complexes of Rare Earth Elements with Acidic (Chelating) and Organophosphorus Ligands. SEPARATIONS 2022. [DOI: 10.3390/separations9110371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A survey of the experimental equilibrium constants in solution for the mixed complexes of 4f ions with acidic (chelating) and O-donor organophosphorus ligands published in the period between 1954 and 2022 is presented. These data are widely used in both analytical and solvent extraction chemistry. Important data evaluation criteria involved the specification of the essential reactions, process conditions and the correctness of techniques and calculations used, as well as appropriate equilibrium analysis of experimental data. Higher-quality data have been evaluated, compiled and presented herein, providing a synoptic view of the unifying theme in this area of research, i.e., synergism.
Collapse
|
4
|
Thenoyltrifluoroacetone: Preferable Molecule for Solvent Extraction of Metals—Ancient Twists to New Approaches. SEPARATIONS 2022. [DOI: 10.3390/separations9060154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
A review of the investigations devoted to the solvent extraction processes of metal ions with a chelating ligand thenoyltrifluoroacetone (HTTA) is presented herein. It seems that this molecule has been preferred in the field for more than half a century, and that it is used very often as an extractant for almost all metals. The main objective of the present review is also to provide an overview of the synergistic solvent extraction of lanthanoids, particularly with the use of a β-diketone−neutral mixture. Based on the previous published results in the open literature, the extraction efficiency has been examined in detail and discussed further mainly in terms of the corresponding equilibrium constants among other outlined, so-important parameters. Major conclusions on the role of ligating groups of extractants towards the mechanism, an improved extraction enhancement, and selectivity are additionally provided. The fact that ionic liquids (ILs) appear to be replacing volatile diluents in the field of the liquid–liquid extraction of metals, again with the participation of this β-diketone, is not surprising. As is well known, a very efficient and simple way to determine the stoichiometry of the extracted species in the organic phase is by the simple use of the slope analysis method; however, it is sometimes difficult to perform, either because it somehow requests good solubility of the ligand or because obtained slopes are quite often far from integer values in ILs.
Collapse
|
5
|
|
6
|
Song Y, Li Y, He X, Zeng X, Zhou M, Liu G, Zhou J. Treatment of cyanide-bearing wastewater by the N263-TBP synergistic extraction system. CHEMOSPHERE 2022; 291:133052. [PMID: 34826442 DOI: 10.1016/j.chemosphere.2021.133052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 11/06/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
In this study, a trioctylmethylammonium chloride (N263)- tributyl phosphate (TBP)-n-octanol-sulfonated kerosene (N263-T) synergistic extraction system and an N263-n-octanol-sulfonated kerosene (N263-O) system were used to treat cyanide (CN)-bearing wastewater. The extraction saturation capacity of the two systems was measured. The influences of the initial pH and phase ratio (O/A) of the two systems on extraction were compared and analyzed. Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, and slope methods were used to analyze the characteristic functional groups in the loaded organic phase, the compositions of the extracted compounds in the extraction reactions and the reaction mechanism. The results indicated that the saturated extraction capacity of the N263-T system, which was much larger than that of the N263-O system, for metal CN complex ions was 4354.31 mg/L. In addition, the N263-T system operated over a wider pH range. The extraction rates of copper (Cu), zinc (Zn), and iron (Fe) ions at pH 14 were 97.4%, 99.1%, and 87.2%, respectively. There was a strong compatibilization effect of TBP on the extraction system. The extraction efficiency of the N263-T system for metal CN complex ions was higher than that of the N263-O system when O/A = 0.4. The saturated loaded N263-T and N263-O systems were stripped by 1 mol/L NaOH +2 mol/L NaSCN solution at O/A = 3. The metal ion concentration in the stripping solution could be enriched to 11996.6 and 8913.3 mg/L for the N263-T and N263-O systems, respectively. During the extraction process, the binding ratios of N263 cations to Cu(CN)32-, Zn(CN)42-, and Fe(CN)63- were 2:1, 2:1, and 3:1, respectively. The binding ratios of TBP to Cu(CN)32-, Zn(CN)42-, and Fe(CN)63- in wastewater were 3:1, 4:1, and 6:1, respectively. The PO group in TBP was linked to the CN group of the metal CN complex ion by hydrogen bonds using the water molecule as a bridge to form a supramolecular anion group, which entered into the organic phase and combined with the N263 cation under the action of ion association.
Collapse
Affiliation(s)
- Yonghui Song
- Xi'an University of Architecture and Technology, School of Metallurgical Engineering, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Gold and Resources, Xi'an, 710055, PR China.
| | - Yifan Li
- Xi'an University of Architecture and Technology, School of Metallurgical Engineering, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Gold and Resources, Xi'an, 710055, PR China
| | - Xihong He
- Xi'an University of Architecture and Technology, School of Metallurgical Engineering, Xi'an, 710055, PR China
| | - Xinhui Zeng
- Xi'an University of Architecture and Technology, School of Metallurgical Engineering, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Gold and Resources, Xi'an, 710055, PR China
| | - Min Zhou
- Tongguan County Taizhou Smelting Co., Ltd., Weinan, Shaanxi, 714300, PR China
| | - Gang Liu
- Tongguan County Taizhou Smelting Co., Ltd., Weinan, Shaanxi, 714300, PR China
| | - Jiameng Zhou
- Xi'an University of Architecture and Technology, School of Metallurgical Engineering, Xi'an, 710055, PR China; Shaanxi Key Laboratory of Gold and Resources, Xi'an, 710055, PR China
| |
Collapse
|
7
|
Solvent extraction of lanthanides(iii) with mixtures of 1,3,5-tris(2-diphenylphosphoryl-4-ethylphenoxymethyl)benzene and 4-benzoyl-5-methyl-2-phenyl-3-pyrazolone. Russ Chem Bull 2022. [DOI: 10.1007/s11172-021-3361-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
8
|
Todorova SE, Rusew RI, Petkova ZS, Shivachev BL, Nikolova RP, Kurteva VB. Acylpyrazolones possessing a heterocyclic moiety in the acyl fragment: intramolecular vs. intermolecular zwitterionic structures. NEW J CHEM 2022. [DOI: 10.1039/d1nj05458a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of acylpyrazolones possessing a methylene bridged heterocyclic unit in the acyl fragment are synthesized and characterized in solution and the solid state.
Collapse
Affiliation(s)
- Stanislava E. Todorova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 9, Sofia 1113, Bulgaria
| | - Rusi I. Rusew
- Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 107, Sofia 1113, Bulgaria
| | - Zhanina S. Petkova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 9, Sofia 1113, Bulgaria
| | - Boris L. Shivachev
- Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 107, Sofia 1113, Bulgaria
| | - Rositsa P. Nikolova
- Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 107, Sofia 1113, Bulgaria
| | - Vanya B. Kurteva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 9, Sofia 1113, Bulgaria
| |
Collapse
|
9
|
|
10
|
Moreno Martinez D, Acher E, Vatin M, Dourdain S, Guillaumont D, Guilbaud P. Aggregation of Bifunctional Extractants Used for Uranium(VI) Separation. J Phys Chem B 2021; 125:10759-10771. [PMID: 34320806 DOI: 10.1021/acs.jpcb.1c03529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
DEHCNPB (butyl-N,N-di(2-ethylhexyl)carbamoyl-nonylphosphonate) is an amido-phosphonic acid that has remarkable properties for the separation of uranium from wet phosphoric acid. Despite previous studies, a detailed description of the DEHCNPB organic solutions at the supramolecular and molecular scales is missing. In the present work, we use classical Molecular Dynamics (MD) combined with SANS and SAXS experimental data in order to describe the aggregation of the bifunctional extractant DEHCNPB as well as the speciation of uranium(VI) in such systems. We provide a fine description of the molecular species in the organic solution and of the interactions within the aggregates formed, shedding light on solvent extraction mechanisms. Without uranium, the organic phase is highly composed of dimers and trimers H-bonded through phosphonate functions and without water molecules. With uranium, two to three extractant molecules coordinate directly the uranyl cation by their phosphonate groups. Uranyl is not fully dehydrated in this organic solution, and the amide groups of the extractants are found to form H-bonds with the water molecules bound to uranyl. These H-bond networks around the metallic cation stabilize the complexes and facilitate the extraction. These results underline the importance of considering weak interactions in the understanding of extraction processes and demonstrate how molecular simulations provide essential insights into such complex organic phase chemistry with a high number of species.
Collapse
Affiliation(s)
| | - Eléonor Acher
- CEA, DES, ISEC, DMRC, Univ Montpellier, Bagnols sur Ceze 30207, France
| | - Marin Vatin
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | | | | | - Philippe Guilbaud
- CEA, DES, ISEC, DMRC, Univ Montpellier, Bagnols sur Ceze 30207, France
| |
Collapse
|
11
|
Olea F, Rosales G, Quintriqueo A, Romero J, Pizarro J, Ortiz C, Quijada-Maldonado E. Theoretical prediction of selectivity in solvent extraction of La(III) and Ce(III) from aqueous solutions using β-diketones as extractants and kerosene and two imidazolium-based ionic liquids as diluents via quantum chemistry and COSMO-RS calculations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
12
|
Turanov AN, Karandashev VK, Khvostikov VA, Artyushin OI, Bondarenko NA. Extraction of Rare Earth Elements(III) with Mixtures of Some New Tridentate Carbamoylmethylphosphine Oxides and 4-Benzoyl-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one from Hydrochloric Acid Solutions. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221030075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Masmoudi A, Zante G, Trébouet D, Barillon R, Boltoeva M. Solvent extraction of lithium ions using benzoyltrifluoroacetone in new solvents. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117653] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
14
|
Ma J, Wang H, Zhang M, Li D, Liu L, Yang H. Preparation of terpyridine-functionalized paramagnetic nickel-zinc ferrite microspheres for adsorbing Pb(ii), Hg(ii), and Cd(ii) from water. RSC Adv 2020; 10:39468-39477. [PMID: 35515405 PMCID: PMC9057409 DOI: 10.1039/d0ra06746f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/12/2020] [Indexed: 02/06/2023] Open
Abstract
A paramagnetic microsphere combining special functional groups may be one kind of the most promising methods for heavy metal adsorption, due to their specific separation capacity, selectivity and reusability. In this study, a novel terpyridine-based magnetic solid-phase adsorbent (TPY-M) is successfully constructed. The paramagnetic Ni0.25Zn0.75Fe2O4 microsphere (M) is synthesized and applied as a magnetic core, and is functionalized by terpyridine (TPY) groups. The naked magnetic core and TPY-M are characterized by vibration sample magnetism (VSM), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and Fourier-transform infrared spectroscopy (FT-IR) techniques. Some parameters of the TPY-M samples are evaluated as potential adsorbents for heavy metal ions in various aqueous solutions. The adsorption capacities of TPY-M for Pb(ii), Hg(ii) and Cd(ii) were 64.75 mg g−1, 33.94 mg g−1 and 24.64 mg g−1 under given conditions, respectively. In the case of Pb(ii), some influencing factors on the TPY-M adsorbent are investigated, including the pH, adsorption time, and ion concentrations. The adsorbent can be easily regenerated by HCl solution after use. The adsorbent revealed good adsorption performance in some real water samples. A paramagnetic microsphere combining special functional groups may be one kind of the most promising methods for heavy metal adsorption, due to their specific separation capacity, selectivity and reusability.![]()
Collapse
Affiliation(s)
- Jie Ma
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Huiling Wang
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Manman Zhang
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Denghui Li
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Lian Liu
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| | - Honggao Yang
- School of Science, University of Shanghai for Science and Technology Shanghai 200093 P. R. China
| |
Collapse
|
15
|
Valorization of palm oil mill sterilization condensate via synergistic green reactive extraction of bioactive compounds. FOOD AND BIOPRODUCTS PROCESSING 2020. [DOI: 10.1016/j.fbp.2020.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Preparation sulfhydryl functionalized paramagnetic Ni0.25Zn0.75Fe2O4 microspheres for separating Pb(II) and Hg(II) ions from aqueous solution. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124205] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
17
|
Cueva Sola AB, Parhi PK, Lee JY, Kang HN, Jyothi RK. Environmentally friendly approach to recover vanadium and tungsten from spent SCR catalyst leach liquors using Aliquat 336. RSC Adv 2020; 10:19736-19746. [PMID: 35520398 PMCID: PMC9054128 DOI: 10.1039/d0ra02229b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/13/2020] [Indexed: 11/29/2022] Open
Abstract
This research paper deals with an environmentally friendly approach for the treatment of spent selective catalytic reduction (SCR) catalyst. To recover vanadium (V) and tungsten (W) from spent SCR catalyst, leach liquors from hydrometallurgical processing were utilized to develop a proper methodology for extraction and possible separation of vanadium and tungsten from each other. This study investigated the solvent extraction (also called liquid–liquid extraction) of vanadium and tungsten utilizing the alkaline roasted leached solution containing approximately ∼7 g L−1 of tungsten and ∼0.7 g L−1 of vanadium. The commercial extractant, N-methyl-N,N,N-tri-octyl-ammonium chloride [R3NCH3]+Cl− (commercial name Aliquat 336), was dissolved in Exxsol™ D80 (diluent) system and adopted in this research. Solvent extraction studies were performed to determine the following experimental parameters: equilibrium pH, extractant concentration, diluent influence, chloride ion concentration, temperature, and stripping reagent concentration, which were systematically scanned to ascertain the optimum conditions for quantitative extraction of both title metals. An anion exchange mechanism was proposed using the quaternary ammonium chloride solvent reagent after slope analysis. Excess supplement of chloride proved to have adverse effects, further supporting the extraction mechanism. Thermodynamics results show positive values for enthalpy (ΔH) for vanadium and tungsten, favoring the endothermic nature of the extraction reaction towards the uptake of either metal. McCabe–Thiele plots for extraction were constructed, suggesting 2 and 3 stages for vanadium and tungsten extraction, respectively, at the aqueous (A) to organic (O) phase ratio of 7 : 1, ensuring more than 99.9% and 7-fold enrichment of both title metals. The stripping trend follows the order: (NaOH + NaCl) > (NaOH + NaNO3) > NaOH > NaNO3 > NaCl. Stripping isotherm followed by stripping counter-current (CCS) study was carried out for quantitative stripping of the metals. A complete extraction and stripping process to obtain enriched vanadium and tungsten concentrate from spent SCR catalyst leach liquor.![]()
Collapse
Affiliation(s)
- Ana Belen Cueva Sola
- Convergence Research Center for Development of Mineral Resources (DMR)
- Korea Institute of Geoscience and Mineral Resources (KIGAM)
- Daejeon 34132
- Korea
- Department of Resource Recycling
| | - Pankaj Kumar Parhi
- Convergence Research Center for Development of Mineral Resources (DMR)
- Korea Institute of Geoscience and Mineral Resources (KIGAM)
- Daejeon 34132
- Korea
- School of Chemical Technology
| | - Jin-Young Lee
- Convergence Research Center for Development of Mineral Resources (DMR)
- Korea Institute of Geoscience and Mineral Resources (KIGAM)
- Daejeon 34132
- Korea
- Department of Resource Recycling
| | - Hee Nam Kang
- Convergence Research Center for Development of Mineral Resources (DMR)
- Korea Institute of Geoscience and Mineral Resources (KIGAM)
- Daejeon 34132
- Korea
| | - Rajesh Kumar Jyothi
- Convergence Research Center for Development of Mineral Resources (DMR)
- Korea Institute of Geoscience and Mineral Resources (KIGAM)
- Daejeon 34132
- Korea
- Department of Resource Recycling
| |
Collapse
|
18
|
Synergism in the Solvent Extraction of Europium(III) with Thenoyltrifluoroacetone and CMPO in Methylimidazolium Ionic Liquids. J SOLUTION CHEM 2019. [DOI: 10.1007/s10953-019-00844-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
19
|
Potential connections between the interaction and extraction performance of mixed extractant systems: A short review. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.097] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
20
|
Onghena B, Papagni E, Souza ER, Banerjee D, Binnemans K, Vander Hoogerstraete T. Speciation of lanthanide ions in the organic phase after extraction from nitrate media by basic extractants. RSC Adv 2018; 8:32044-32054. [PMID: 30713684 PMCID: PMC6333249 DOI: 10.1039/c8ra06712k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/07/2018] [Indexed: 01/17/2023] Open
Abstract
A speciation study was carried out for lanthanide complexes formed in the organic phase after solvent extraction with quaternary ammonium and phosphonium nitrate extractants. These extractants are liquid at room temperature and were applied in their undiluted form. A comparison was made between the quaternary compound trihexyl(tetradecyl)phosphonium nitrate, the nitrate form of the commercial extractant Cyphos IL 101, and Aliquat 336 nitrate, the nitrate form of the commercial trialkylmethylammonium chloride extractant Aliquat 336 (alkyl = mixture of C8 and C10 chains). The structures of the lanthanide complexes across the entire lanthanide series (with the exception of promethium) were determined by a combination of solvent extraction techniques, FTIR, NMR, high-resolution steady-state luminescence spectroscopy, luminescence life time measurements, elemental analysis and EXAFS spectroscopy. The results suggest that the lanthanide ions form an anionic nitrate complex in the organic phase by coordinating with five bidentate nitrate ligands. Charge neutralization is provided by two counter cations of the extractant present in the outer coordination sphere of the complex. Furthermore, it is suggested that the pentanitrato complex is the sole lanthanide species that is formed in significant concentrations in the organic phase. Lanthanides are extracted to basic nitrate-based extractants, like trihexyl(tetradecyl)phosphonium nitrate, as pentanitrato lanthanide complexes.![]()
Collapse
Affiliation(s)
- Bieke Onghena
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Eleonora Papagni
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Ernesto Rezende Souza
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Dipanjan Banerjee
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Koen Binnemans
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | | |
Collapse
|
21
|
Huang PW, Wang CZ, Wu QY, Lan JH, Song G, Chai ZF, Shi WQ. Theoretical studies on the synergistic extraction of Am3+ and Eu3+ with CMPO–HDEHP and CMPO–HEH[EHP] systems. Dalton Trans 2018; 47:5474-5482. [DOI: 10.1039/c8dt00134k] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Synergistic extraction and separation of Eu3+/Am3+ with CMPO–HDEHP and CMPO–HEH[EHP] systems have been theoretically investigated.
Collapse
Affiliation(s)
- Pin-Wen Huang
- Zhejiang University of Water Resources and Electric Power
- Hangzhou 310018
- China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Gang Song
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources
- Guangzhou University
- Guangzhou 510006
- China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
| |
Collapse
|
22
|
Atanassova M, Kurteva V. Peculiar synergistic extraction behavior of Eu(III) in ionic liquids: Benzoylacetone and CMPO fusion. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
23
|
Okamura H, Aoyagi N, Shimojo K, Naganawa H, Imura H. Role of Tf2N− anions in the ionic liquid–water distribution of europium(iii) chelates. RSC Adv 2017. [DOI: 10.1039/c6ra27208h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The replacement of water molecules of [Eu(tta)3(H2O)3] with Tf2N− was evidenced in water-saturated [Cnmim][Tf2N] by time-resolved laser-induced fluorescence spectroscopy.
Collapse
Affiliation(s)
- Hiroyuki Okamura
- Advanced Science Research Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | - Noboru Aoyagi
- Nuclear Science and Engineering Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | - Kojiro Shimojo
- Advanced Science Research Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | | | - Hisanori Imura
- Faculty of Chemistry
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
| |
Collapse
|