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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
Source PublicationJOURNAL OF MOLECULAR LIQUIDS
Volume215Pages:640-646
SubtypeArticle
AbstractSeparation 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.
KeywordIonic Liquid Tri-n-butyl Phosphate Lithium Extraction
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTRIBUTYL-PHOSPHATE ; AQUEOUS-SOLUTION ; SALT LAKE ; RECOVERY ; EQUILIBRIA ; BATTERIES ; CHLORIDE ; SYSTEMS ; BRINE ; TBP
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000371559600072
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6304
Collection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
Affiliation1.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
Recommended Citation
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.
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