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Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid
Shi, Chenglong1,2; Jing, Yan1; Jia, Yongzhong1
2016-03-01
发表期刊JOURNAL OF MOLECULAR LIQUIDS
卷号215页码:640-646
文章类型Article
摘要Separation among lithium ion and magnesium ion remains challenging. In this work, solvent extraction of lithium ions from the Mg(II)-containing salt lake brine into a commonly used ionic liquid 1-butyl-3-methylimidazolium bis(trifiuoromethylsulfonyl) imide ([C(4)mim][NTf2]) using the neutral phosphorus compound tri-n-butyl phosphate (TBP) as the extractant was investigated. The extraction behavior of lithium ions was investigated as a function of various parameters: acidity of the salt lake brine, dosage of ionic liquid and phase ratio. Under the optimal conditions, the single extraction efficiency of lithium was 92.37%, which indicated that it was an efficient extraction system for the recovery of lithium ions. Based on the study of thermodynamics, thermodynamic parameters of the lithium ion extraction reaction were obtained. The extracted species were ascertained from slope analysis method which indicated 1:1 (metal:ligand) ratio in the complex. UV-visible and Fourier transform infrared spectroscopy (FTIR) studies were also carried out to understand the nature of the extracted species. (C) 2016 Elsevier B.V. All rights reserved.
关键词Ionic Liquid Tri-n-butyl Phosphate Lithium Extraction
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]TRIBUTYL-PHOSPHATE ; AQUEOUS-SOLUTION ; SALT LAKE ; RECOVERY ; EQUILIBRIA ; BATTERIES ; CHLORIDE ; SYSTEMS ; BRINE ; TBP
收录类别SCI
语种英语
WOS研究方向Chemistry ; Physics
WOS类目Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000371559600072
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6304
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Shi, Chenglong,Jing, Yan,Jia, Yongzhong. Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid[J]. JOURNAL OF MOLECULAR LIQUIDS,2016,215:640-646.
APA Shi, Chenglong,Jing, Yan,&Jia, Yongzhong.(2016).Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid.JOURNAL OF MOLECULAR LIQUIDS,215,640-646.
MLA Shi, Chenglong,et al."Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid".JOURNAL OF MOLECULAR LIQUIDS 215(2016):640-646.
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