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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
发表期刊SEPARATION AND PURIFICATION TECHNOLOGY
卷号172页码:473-479
文章类型Article
摘要Two 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.
关键词Solvent Extraction Ionic Liquids Lithium
WOS标题词Science & Technology ; Technology
关键词[WOS]SALT LAKE BRINE ; TRIBUTYL-PHOSPHATE ; BETAINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE ; SELECTIVE EXTRACTION ; SCANDIUM(III) ; RECOVERY ; EQUILIBRIA ; SEPARATION ; STORAGE ; SYSTEM
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000385602300053
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6357
专题青海盐湖研究所知识仓储
作者单位1.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
推荐引用方式
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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