Extraction of Lithium from Brine with a High Mg/Li Ratio Using Polymer Inclusion Membrane Containing Tri-n-butyl Phosphate and Ionic Liquid
文献类型：期刊论文
| 作者 | Zhou, Wanji1,3; Li, Zheng2; Bi, Qiuyan1; Ma, Lei1,3; Xu, Shiai1,3 |
| 刊名 | Journal of Sustainable Metallurgy
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 8期号:4页码:1639-1649 |
| ISSN号 | 21993823 |
| 关键词 | Carrier concentration - Chlorine compounds - Efficiency - Extraction - Fourier transform infrared spectroscopy - Iron compounds - Liquid membranes - Lithium - Magnesium compounds - Polyvinyl chlorides - Thermogravimetric analysis |
| DOI | 10.1007/s40831-022-00592-y |
| 英文摘要 | The polymer inclusion membrane (PIM) containing tri-n-butyl phosphate (TBP) and ferric trichloride (FeCl3) is capable of separating Li+ and Mg2+. However, many problems remain to be resolved, such as the need of a high concentration of Cl鈭?in the stripping phase, low stability due to loss of Fe3+, and complex preparation process of the carrier used for PIM. In order to solve these problems, hydroxyl-functionalized ionic liquid 1-hydroxyethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide ([OHEMIM][NTf2]) instead of FeCl3 was incorporated into polyvinyl chloride (PVC)-based PIM in this study. PIM was characterized by Fourier transform infrared spectroscopy, scanning election microscopy, and thermogravimetric analysis, and the effects of the pH of the initial aqueous phase and the mass ratio and concentration of carriers on the extraction efficiency were investigated. Under optimum conditions, the extraction efficiency of Li+ and the separation factor of Li+ over Mg2+ are increased by 13.3% and 24.8% compared to liquid鈥搇iquid extraction, respectively. After 10 cycles, the extraction efficiency of Li+ is slightly decreased from 17.0 to 13.6%, indicating that PIM is relatively stable. In the transport experiment, the initial flux of Li+ is 1.6 脳 10鈥?聽mol路m鈭?路h鈭? and the separation factor of Li+ over Mg2+ is 184 under optimum conditions, which demonstrates that Li+ can be effectively and selectively separated from Mg2+. It is also found that a high Cl鈭?concentration is not needed in the stripping phase. This study can facilitate the application of PIM for extraction of Li+ from brine with a high Mg/Li ratio. Graphical Abstract: [Figure not available: see fulltext.]. 漏 2022, The Minerals, Metals & Materials Society. |
| 学科主题 | Ionic Liquids |
| 项目编号 | This research is financially supported by the National Natural Science Foundation of China (52063025, U20A20139) and the Foundation from Qinghai Science and Technology Department (2020-HZ-808, 2021-ZJ-939Q) and the Young and Middle-aged Fund of Qinghai University (2019-QGY-7, 2020-QGY-6). |
| 出版者 | Springer Science and Business Media Deutschland GmbH |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61238]  |
| 作者单位 | 1.School of Chemical Engineering, Qinghai University, Xining; 810016, China 2.CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.School of Materials Science and Engineering, East China University of Science and Technology, Shanghai; 200237, China |
| 推荐引用方式 GB/T 7714 | Zhou, Wanji,Li, Zheng,Bi, Qiuyan,et al. Extraction of Lithium from Brine with a High Mg/Li Ratio Using Polymer Inclusion Membrane Containing Tri-n-butyl Phosphate and Ionic Liquid[J]. Journal of Sustainable Metallurgy,2022,8(4):1639-1649. |
| APA | Zhou, Wanji,Li, Zheng,Bi, Qiuyan,Ma, Lei,&Xu, Shiai.(2022).Extraction of Lithium from Brine with a High Mg/Li Ratio Using Polymer Inclusion Membrane Containing Tri-n-butyl Phosphate and Ionic Liquid.Journal of Sustainable Metallurgy,8(4),1639-1649. |
| MLA | Zhou, Wanji,et al."Extraction of Lithium from Brine with a High Mg/Li Ratio Using Polymer Inclusion Membrane Containing Tri-n-butyl Phosphate and Ionic Liquid".Journal of Sustainable Metallurgy 8.4(2022):1639-1649. |
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来源：过程工程研究所
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