Lithium extraction from low-grade salt lake brine with ultrahigh Mg Li ratio using TBP - kerosene - FeCl3 system

doi:10.1016/j.seppur.2018.09.087

	Lithium extraction from low-grade salt lake brine with ultrahigh Mg Li ratio using TBP - kerosene - FeCl3 system
	Shi, Dong; Cui, Bin; Li, Lijuan; Peng, Xiaowu; Zhang, Licheng; Zhang, Yuze
	2019-03-18
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY
ISSN	1383-5866
卷号	211 页码:303-309
摘要	A novel Li+ extraction process from low - grade salt lake brine with ultrahigh Mg/Li mass ratio was investigated using TBP - kerosene - FeCl3 system in this work. The effects of various factors (such as TBP concentration, Fe/Li molar ratio and acidity of brine) on Li+ extraction was first studied, and the optimum conditions of single - stage extraction was identified as follows: TBP concertation was 75%, Fe/Li molar ratio was 1.3, and the acidity of brine was 0.01 mol/L. The extraction efficiency of Li+ and separation factor of Li/Mg in single - stage reached 67.9% and 435.5 respectively. The extraction, scrubbing, stripping and regeneration processes were studied respectively to optimize the operation conditions of each section, and a novel reflux scrubbing process was put forward. Then an eleven -stage whole extraction process experiment was carried out at the optimum conditions. The capacity of Li in organic phase reached 2.0 g/L. The extraction efficiency of Li+ reached 87.9%, and stripping liquor containing 28.83 g/L Li+ and 0.617 g/L Mg2+ was obtained. The Mg/Li mass ratio changed from 370 in salt lake brine to 0.02 in the stripping liquor. The aims of separation, purification and enrichment Li+ were achieved concurrently through the novel extraction process without any other additional process.
DOI	10.1016/j.seppur.2018.09.087
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34058
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	Shi, Dong,Cui, Bin,Li, Lijuan,et al. Lithium extraction from low-grade salt lake brine with ultrahigh Mg Li ratio using TBP - kerosene - FeCl3 system[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,211:303-309.
APA	Shi, Dong,Cui, Bin,Li, Lijuan,Peng, Xiaowu,Zhang, Licheng,&Zhang, Yuze.(2019).Lithium extraction from low-grade salt lake brine with ultrahigh Mg Li ratio using TBP - kerosene - FeCl3 system.SEPARATION AND PURIFICATION TECHNOLOGY,211,303-309.
MLA	Shi, Dong,et al."Lithium extraction from low-grade salt lake brine with ultrahigh Mg Li ratio using TBP - kerosene - FeCl3 system".SEPARATION AND PURIFICATION TECHNOLOGY 211(2019):303-309.

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