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Ushizaki S, Kanemaru S, Sugamoto K, Baba Y. Selective extraction equilibria of Sc(III), Y(III), Fe(III) and Al(III) from acidic media with toluene mixture of deep eutectic solvent (DES) composed of TOPO and isostearic acid. ANAL SCI 2023; 39:473-481. [PMID: 36807888 DOI: 10.1007/s44211-022-00234-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/29/2022] [Indexed: 02/23/2023]
Abstract
A deep eutectic solvent (DES) composed of isostearic acid and TOPO was newly found out and investigated for selective recovery of scandium. The four elements used in this study are scandium, iron, yttrium, and aluminum. It was difficult to separate the four elements owing to the overlap of extraction behavior when isostearic acid or TOPO alone in toluene was used, respectively. However, scandium was able to be selectively extracted from other metals using DES prepared by 1:1 mol ratio of isostearic acid and TOPO without toluene. In DES consisting of isostearic acid and TOPO, synergistic and blocking effects with three extractants acted on the extraction selectivity for scandium. Both effects are proved also from the fact that scandium was easily stripped with diluted acidic solutions such as 2 M HCl and H2SO4. Thus, DES extracted selectively scandium and back-extraction was easily achieved. In order to elucidate these phenomena above, the extraction equilibria of Sc(III) using DES dissolved in toluene was investigated in detail. The extraction mechanism of scandium by DES in toluene indicates that the extracted chemical species vary with pH, and that trivalent scandium is extracted by forming stable metal complexes with DESs consisting of five molecules of isostearic acid and five molecules of TOPO.
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Affiliation(s)
- Sora Ushizaki
- Department of Applied Chemistry, Faculty of Engineering, The University of Miyazaki, Gakuen-Kibanadai Nishi 1-1, Miyazaki, 889-2155, Japan
| | - Shintaro Kanemaru
- Department of Applied Chemistry, Faculty of Engineering, The University of Miyazaki, Gakuen-Kibanadai Nishi 1-1, Miyazaki, 889-2155, Japan
| | - Kazuhiro Sugamoto
- Department of Applied Chemistry, Faculty of Engineering, The University of Miyazaki, Gakuen-Kibanadai Nishi 1-1, Miyazaki, 889-2155, Japan
| | - Yoshinari Baba
- Department of Applied Chemistry, Faculty of Engineering, The University of Miyazaki, Gakuen-Kibanadai Nishi 1-1, Miyazaki, 889-2155, Japan.
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Zhang Z, Li R, Guo C, Chen X, Sun J, Zhi Y, Zhang B. Improved Extraction of Rare Earths of La, Ce, Pr, and Nd by Optimizing the Structure of Phenoxyacetic Acid. ChemistrySelect 2021. [DOI: 10.1002/slct.202101647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhen Zhang
- School of Mechanical Engineering Chengdu University Chengdu 610106 P. R. China
| | - Rui Li
- College of Engineering Northeast Agricultural University Harbin 150030 P. R. China
| | - Chuanglong Guo
- School of Mechanical Engineering Chengdu University Chengdu 610106 P. R. China
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 P. R. China
| | - Xueling Chen
- School of Mechanical Engineering Chengdu University Chengdu 610106 P. R. China
| | - Junmei Sun
- School of Mechanical Engineering Chengdu University Chengdu 610106 P. R. China
| | - Yonggang Zhi
- Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 P. R. China
| | - Bo Zhang
- Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering and Pharmacy Wuhan Institute of Technology Wuhan Hubei P. R. China
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Ibrahim SM, Zhang Y, Xue Y, Yang S, Ma F, Tian G. Extraction of Lanthanides(III) along with Thorium(IV) from Chloride Solutions by N,N-di(2-Ethylhexyl)-Diglycolamic Acid. SOLVENT EXTRACTION AND ION EXCHANGE 2020. [DOI: 10.1080/07366299.2020.1730368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sherif M. Ibrahim
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
- Rare Earth Elements Separation Project, Nuclear Materials Authority, Cairo, Egypt
| | - Yan Zhang
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing, China
| | - Yun Xue
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Suliang Yang
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing, China
| | - Fuqiu Ma
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Guoxin Tian
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing, China
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Ibrahim S, Zhang Y, Xue Y, Yang S, Ma F, Gao Y, Zhou Y, Tian G. Selective Extraction of Light Lanthanides(III) by N, N-Di(2-ethylhexyl)-diglycolamic Acid: A Comparative Study with N, N-Dimethyl-diglycolamic Acid as a Chelator in Aqueous Solutions. ACS OMEGA 2019; 4:20797-20806. [PMID: 31858066 PMCID: PMC6906934 DOI: 10.1021/acsomega.9b03241] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
The complexation and selectivity of N,N-di(2-ethylhexyl)-diglycolamic acid (HDEHDGA/kerosene, HA) toward the light lanthanides, La(III), Ce(III), Pr(III), and Nd(III), are presented for the extraction from chloride media. In the low pH region (pH 1.8-2.8), the obtained data reveal that the extraction of Ln(III) is governed by cation-exchange mechanism and is driven by the negative change in enthalpy. The results from the slope analysis method suggest the formation of LnA3·(HA)1or2 in the extraction process. As major extracted species with a core of LnA3 in the first coordination sphere, LnA3 might connect with one or two additional HA molecules in the second coordination sphere by hydrogen bonding. The LnA3 core might share similar coordination geometry to those of 1:3 Ln(III) complexes (LnA'3) with water-soluble N,N-dimethyl-diglycolamic acid (HDMDGA, HA') formed in aqueous solutions or in solid-state compounds. The correlation between the extraction with HDEHDGA (HA) as an extractant and the complexation with HDMDGA (HA') as a chelator has been explored by interpreting the separation factors for HA with the difference in the stability constants for HA'. Consequently, the ratios of the stability constants of the corresponding 1:3 complexes (LnA'3) with HDMDGA could be reasonably translated to the separation factors (SFs) with HDEHDGA, providing a valuable approach for understanding the origin of the extraction/separation mechanism. By comparing the extraction selectivity of HDEHDGA with that of the currently deployed extractants in the industry such as P204, P507, and Cyanex 272, HDEHDGA offers outstanding selectivity with considerable SFs (SFCe/La = 6.68, SFPr/Ce = 2.79, and SFNd/Pr = 2.65) for light Ln(III) pairs under conditions of low acid concentrations.
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Affiliation(s)
- Sherif
M. Ibrahim
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
- Nuclear
Materials Authority, P.O. Box 530, EL-Maadi, Cairo, Egypt
| | - Yan Zhang
- Department
of Radiochemistry, China Institute of Atomic
Energy, Beijing 102413, China
| | - Yun Xue
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
| | - Suliang Yang
- Department
of Radiochemistry, China Institute of Atomic
Energy, Beijing 102413, China
| | - Fuqiu Ma
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
| | - Yang Gao
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
| | - Yu Zhou
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
| | - Guoxin Tian
- College
of Nuclear Science and Technology, Harbin
Engineering University, Harbin, Heilongjiang 150001, China
- Department
of Radiochemistry, China Institute of Atomic
Energy, Beijing 102413, China
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Mowafy EA, Mohamed D. Extraction of rare earth elements from nitrate solution using novel unsymmetrical diglycolamide. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2016.1274760] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- E. A. Mowafy
- Department of Chemistry, Faculty of Science, University of Hail, Hail, Saudi Arabia
- Hot Labs. Center, Atomic Energy Authority, Cairo, Egypt
| | - D. Mohamed
- Department of Chemistry, Faculty of Science, University of Hail, Hail, Saudi Arabia
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