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Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents
Shi, Chenglong1,2,3; Jing, Yan1,2; Xiao, Jiang1,2,3; Wang, Xingquan1,2,3; Yao, Ying1,2; Jia, Yongzhong1,2
2017
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
Volume172Pages:473-479
SubtypeArticle
AbstractTwo non-fluorinated ionic liquids (ILs), namely tetrabutylammonium bis(2-ethylhexyl)-phosphate, [N-4444][DEHP], and tetraoctylammonium bis(2-ethylhexyl)-phosphate, [N-8888][DEHP], were synthesized and fully characterized by H-1 and C-13 NMR spectroscopy. These functionalized ILs were subsequently evaluated in terms of their ability to extract lithium ions from aqueous solution. The extraction efficiencies of these functionalized ILs for lithium ions were measured as a function of various extraction parameters, including aqueous acidity, temperature and extractant concentration. The extracted species were determined using a slope analysis method, which indicated that the ILs formed a 1:1 (metal:ligand) complex. Fourier transform infrared spectroscopy studies were conducted to better understand the nature of the extracted species. We also investigated the stripping of the lithium ions from the organic phase and the re-use of the ionic liquid in a subsequent extraction step. (C) 2016 Elsevier B.V. All rights reserved.
KeywordSolvent Extraction Ionic Liquids Lithium
WOS HeadingsScience & Technology ; Technology
WOS KeywordSALT LAKE BRINE ; TRIBUTYL-PHOSPHATE ; BETAINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE ; SELECTIVE EXTRACTION ; SCANDIUM(III) ; RECOVERY ; EQUILIBRIA ; SEPARATION ; STORAGE ; SYSTEM
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000385602300053
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6357
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Shi, Chenglong,Jing, Yan,Xiao, Jiang,et al. Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,172:473-479.
APA Shi, Chenglong,Jing, Yan,Xiao, Jiang,Wang, Xingquan,Yao, Ying,&Jia, Yongzhong.(2017).Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents.SEPARATION AND PURIFICATION TECHNOLOGY,172,473-479.
MLA Shi, Chenglong,et al."Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents".SEPARATION AND PURIFICATION TECHNOLOGY 172(2017):473-479.
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