| Lithium isotope separation using 4 '-acetylbenzo-15-crown-5 and 1-butyl-3-methylimidazolium bis[(trifluoromethyl) sulfonyl] imide in the synergistic extraction system | |
Zhu, Wenbo; Jia, Yongzhong ; Sun, Jinhe; Zhang, Pengrui; Shao, Fei; Jing, Yan
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| 第一作者 | Zhu, Wenbo |
| 2020-02-01 | |
| 发表期刊 | JOURNAL OF MOLECULAR LIQUIDS
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| ISSN | 0167-7322 |
| 卷号 | 299 |
| 摘要 | A novel synergistic extraction system was studied for the separation of lithium isotopes using lithium salts solution as aqueous phase and dichloromethane containing 4'-acetylbenzo-15-crown-5 and [BMIm] [NTf2] as organic phase with solvent extraction method. The key factors such as anions of lithium salts, concentrations of LiNTf2, initial pH values of aqueous phase, solvents, volume ratio of dichloromethane and [BMIm] [NTf2] were investigated in this study. Results showed that the maximum extraction rate of lithium was 68.36% and the maximum single stage separation factor of Li-6 and Li-7 was 1.056 +/- 0.002. The formed complex in organic phase was studied by the slope analysis method, which indicated that the complex was composed of Li-ion and 4'-actylbenzo-15-crown-5 by 1:1. The thermodynamic parameters of the Li-6 and Li-7 exchange reaction were calculated by data obtained on temperature during experiments, which explained that the exchange behavior of Li-6 and Li-7 in this system was a spontaneous exothermic reaction. In addition, this system was able to efficiently separate lithium isotopes at lower temperature. (C) 2018 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.molliq.2019.112239 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/33957 |
| 专题 | 盐湖资源综合利用工程技术中心 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Zhu, Wenbo,Jia, Yongzhong,Sun, Jinhe,et al. Lithium isotope separation using 4 '-acetylbenzo-15-crown-5 and 1-butyl-3-methylimidazolium bis[(trifluoromethyl) sulfonyl] imide in the synergistic extraction system[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,299. |
| APA | Zhu, Wenbo,Jia, Yongzhong,Sun, Jinhe,Zhang, Pengrui,Shao, Fei,&Jing, Yan.(2020).Lithium isotope separation using 4 '-acetylbenzo-15-crown-5 and 1-butyl-3-methylimidazolium bis[(trifluoromethyl) sulfonyl] imide in the synergistic extraction system.JOURNAL OF MOLECULAR LIQUIDS,299. |
| MLA | Zhu, Wenbo,et al."Lithium isotope separation using 4 '-acetylbenzo-15-crown-5 and 1-butyl-3-methylimidazolium bis[(trifluoromethyl) sulfonyl] imide in the synergistic extraction system".JOURNAL OF MOLECULAR LIQUIDS 299(2020). |
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| Lithium isotope sepa（904KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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