High performance task-specific ionic liquid in uranium extraction endowed with negatively charged effect
| Autor: | Zhang Zhang, Ling He, Wen-Li Yuan, Fang Yong, Hao Chen, Xiao-Hua Wang, Guo-Hong Tao, Yi-Hong Shen, Lei Zhang, Dingguo Xu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Aqueous solution
Chemistry Extraction (chemistry) Inorganic chemistry chemistry.chemical_element PUREX Uranium Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion chemistry.chemical_compound Ionic liquid Materials Chemistry Tributyl phosphate Physical and Theoretical Chemistry Selectivity Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 336:116601 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2021.116601 |
| Popis: | Designing functionalized task-specific ionic liquid is a promising way to alleviate the potential second pollution caused by the usage of tributyl phosphate in PUREX process. In this work, a new anion-functionalized ionic liquid, N,N,N-trimethyltetradecan-1-aminium dibutyl phosphate ([N14111][DBP]), was synthesized and applied in uranium extraction. Thanks to the negatively charged effect, [N14111][DBP] exhibits high efficiency in uranium separation, at optimized condition, the maximum of distribution ratio (concentration of ions in extractant to concentration of ions in aqueous solution) for UO22+ could reach 343.5. What’s more, the selectivity of [N14111][DBP] for UO22+ from transition metal ions was also examined in simulated nuclear industry effluent containing and UO22+ ions were separated and extracted efficiently. The advantage of extraction efficiency and selectivity of [N14111][DBP] compared with DBP highlight the superiority of anion-functionalized extractant. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect