Solvent extraction of lithium from ammoniacal solution using thenoyltrifluoroacetone and neutral ligands

doi:10.1016/j.molliq.2018.11.041

	Solvent extraction of lithium from ammoniacal solution using thenoyltrifluoroacetone and neutral ligands
	Zhang, Licheng; Shi, Dong; Li, Lijuan; Peng, Xiaowu; Song, Fugen; Rui, Hongming
	2019-01-15
发表期刊	JOURNAL OF MOLECULAR LIQUIDS
ISSN	0167-7322
卷号	274 页码:746-751
摘要	Lithium extraction from ammoniacal solution with thenoyltrifluoroacetone (HTTA) and neutral ligand was studied in various organic solvents. The remarkable enhancement of lithium extraction was observed by the addition of neutral organophosphorus compounds and the experiments showed that trioctylphosphine oxide(TOPO) was preferable for lithium extraction. The synergistic effect of thenoyltrifluoroacetone and trioctylphosphine was studied in detail and the results indicated that the strongest enhancement coefficient was 1205 when molar ratio of two extractants was 1:1. The extracted lithium complex was found to be Li center dot TTA center dot TOPO by slope method and the results of thermodynamic study indicated that the extraction process was spontaneous exothermic process and the degree of disorder increased after extraction. In addition, stripping and regeneration condition of organic phase were investigated in detail. It was demonstrated that the synergistic extraction system containing HTTA and TOPO could effectively separate lithium and other alkali metal ions and was feasible for lithium extraction from ammoniacal solution. (C) 2018 Published by Elsevier B.V.
DOI	10.1016/j.molliq.2018.11.041
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34051
专题	盐湖资源综合利用工程技术中心中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Zhang, Licheng,Shi, Dong,Li, Lijuan,et al. Solvent extraction of lithium from ammoniacal solution using thenoyltrifluoroacetone and neutral ligands[J]. JOURNAL OF MOLECULAR LIQUIDS,2019,274:746-751.
APA	Zhang, Licheng,Shi, Dong,Li, Lijuan,Peng, Xiaowu,Song, Fugen,&Rui, Hongming.(2019).Solvent extraction of lithium from ammoniacal solution using thenoyltrifluoroacetone and neutral ligands.JOURNAL OF MOLECULAR LIQUIDS,274,746-751.
MLA	Zhang, Licheng,et al."Solvent extraction of lithium from ammoniacal solution using thenoyltrifluoroacetone and neutral ligands".JOURNAL OF MOLECULAR LIQUIDS 274(2019):746-751.

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