Recovery of lithium from alkaline brine by solvent extraction with beta-diketone

doi:10.1016/j.hydromet.2017.10.029

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	Recovery of lithium from alkaline brine by solvent extraction with beta-diketone
	Zhang, Licheng; Li, Lijuan; Shi, Dong; Peng, Xiaowu; Song, Fugen; Nie, Feng; Han, Wensheng
第一作者	Zhang, Licheng
	2018-01
发表期刊	HYDROMETALLURGY
ISSN	0304-386X
卷号	175 页码:35-42
关键词	Lithium Extraction Alkaline Brine Counter-current Extraction Mixer-settler
摘要	Lithium recovery from alkaline brines by counter-current method using beta-diketone was investigated. By comparing effect of different co-extractants and diluents on lithium extraction, HBTA-TOPO-kerosene system was determined as the extraction system.In extraction process, 0.4 mol/L HBTA and 0.3 mol/L TOPO in kerosene performed as extractant and three theoretical stages were required to reach 95% extraction according to McCabe Thiele diagram. 1 mol/L HCl and 3 mol/L HCl solution were used as scrubbing agent and stripping agent respectively. In regeneration stage, 2 mol/L NaOH was used as regeneration agent to remove free acid entrained in organic phase and exchange H+ of hydroxyl. Bench experiments indicated that the respective number of extraction, scrubbing, stripping and regeneration were 3, 1, 2 and 1 stage.A 7-stage extraction process was conducted in a mixer-settler for 30 h to reach stable state, average extraction rate of lithium was 96% and lithium concentration in stripping solution was 15 g/L. Concentration of impurity ions in stripping liquor was < 1 g/L. No third phase or emulsification was observed during the operation. In summary, HBTA-TOPO-kerosene extraction system was verified an effective method to recovery lithium from alkaline brine.
DOI	10.1016/j.hydromet.2017.10.029
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/363002/6416
专题	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
推荐引用方式 GB/T 7714	Zhang, Licheng,Li, Lijuan,Shi, Dong,et al. Recovery of lithium from alkaline brine by solvent extraction with beta-diketone[J]. HYDROMETALLURGY,2018,175:35-42.
APA	Zhang, Licheng.,Li, Lijuan.,Shi, Dong.,Peng, Xiaowu.,Song, Fugen.,...&Han, Wensheng.(2018).Recovery of lithium from alkaline brine by solvent extraction with beta-diketone.HYDROMETALLURGY,175,35-42.
MLA	Zhang, Licheng,et al."Recovery of lithium from alkaline brine by solvent extraction with beta-diketone".HYDROMETALLURGY 175(2018):35-42.

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