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Li T, Dong S, Chen Z, Wei Q, Ren X. Breaking through the Separation Barrier of Zr(IV) and Hf(IV): Magical Effect of the Bisamide Ligand. Inorg Chem 2022; 61:13915-13923. [PMID: 35994610 DOI: 10.1021/acs.inorgchem.2c01904] [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
The fundamental safety improvement of the nuclear industry depends on two important elements: Zr(IV) and Hf(IV). However, the elementary knowledge is that separation processes of the two are difficult, so there are few existing methods to meet the requirement. Furthermore, the process is highly contaminated. The development of green and efficient ligands for the separation of Zr(IV) and Hf(IV) is beneficial to the stable development of the nuclear industry. A bisamide ligand D001 was reported for the extraction and separation of Zr(IV) and Hf(IV). D001 utilizes an anionic association mechanism to extract Zr(IV) and Hf(IV) by coordinating amide groups with metals to form complexes H2ZrCl6·2 D001 and H2HfCl6·2 D001. Using quantum chemical calculations, we illuminate the extraction mechanism of bisamide ligands and the reasons for their better coordination ability than monoamide ligands and carboxylic acid ligands. A process of bisamide extraction and separation of Zr(IV) and Hf(IV) was established, and the thermodynamic parameters of the process were investigated.
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Affiliation(s)
- Ting Li
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China.,School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.,Shandong Institute of Ship-Building Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, Shandong 264209, China
| | - Shishun Dong
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China.,School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.,Shandong Institute of Ship-Building Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, Shandong 264209, China
| | - Zhaowen Chen
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China.,School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China
| | - Qifeng Wei
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China.,School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.,Shandong Institute of Ship-Building Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, Shandong 264209, China
| | - Xiulian Ren
- School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China.,School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.,Shandong Institute of Ship-Building Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, Shandong 264209, China
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Extraction and separation of Fe and Ti from extracted vanadium residue by enhanced ammonium sulfate leaching and synthesis of LiFePO4/C for lithium-ion batteries. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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