Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid

ISL OpenIR > 青海盐湖研究所知识仓储

	Solvent extraction of lithium ions by tri-n-butyl phosphate using a room temperature ionic liquid
	Shi, Chenglong 1,2; Jing, Yan1 ; Jia, Yongzhong1
	2016-03-01
发表期刊	JOURNAL OF MOLECULAR LIQUIDS
卷号	215 页码:640-646
关键词	Ionic Liquid Tri-n-butyl Phosphate Lithium Extraction
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.
语种	英语
引用统计
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
推荐引用方式 GB/T 7714	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.