Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents

doi:10.1016/j.seppur.2016.08.034

ISL OpenIR > 青海盐湖研究所知识仓储

	Solvent extraction of lithium from aqueous solution using non-fluorinated functionalized ionic liquids as extraction agents
	Shi, Chenglong; Jing, Yan; Xiao, Jiang; Wang, Xingquan; Yao, Ying; Jia, YongzhongShi, Chenglong
	2017
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
卷号	172 页码:473-479
关键词	Solvent Extraction Ionic Liquids Lithium
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.
DOI	10.1016/j.seppur.2016.08.034
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/363002/6357
专题	青海盐湖研究所知识仓储
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, YongzhongShi, Chenglong.(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.