Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507

doi:10.1016/j.hydromet.2020.105487

	Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507
	Su, Hui 1,3,4; Li, Zheng 2; Zhang, Jian 1,3,4; Zhu, Zhaowu 1,3; Wang, Lina 1,3; Qi, Tao 1,3
刊名	HYDROMETALLURGY
	2020-11-01
卷号	197 页码:9
关键词	Ternary solvent extraction Lithium Salt lake brine TBP P507 Stripping
ISSN号	0304-386X
DOI	10.1016/j.hydromet.2020.105487
英文摘要	The consumption of lithium has been increasing rapidly due to its increasing application in lithium-ion batteries. The recovery of lithium from salt lake brines, which accounts for more than 70% of global lithium resources, has become increasingly studied; however, some challenges remain. In a previous study, a mixed ternary solvent extraction system consisting of TBP (tributyl phosphate), FeCl3 and P507 (2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester) was developed. This newly developed system demonstrated good selectivity of Li over Mg and efficient lithium stripping simply using water. In the current study, to demonstrate its practical effectiveness, the TBP/FeCl3/P507 system was tested with a real salt lake brine in both batch and multi-stage simulated counter-current modes. Detailed conditions for extraction, scrubbing and stripping were investigated. In the three-stage simulated counter-current extraction tests, the recovery of lithium reached 99.8%, and in the three-stage simulated counter-current stripping tests, the obtained loaded strip liquor contained (g.L-1): Li, 20.9; Mg, 2.2; and B, 1.6. During stripping, the Fe3+ remained fully in the organic phase, enabling the organic phase to be directly used in the next extraction without regeneration. The high lithium selectivity, lithium recovery and efficient lithium stripping with water of the above process promotes it as a cost-effective and sustainable method for recovering lithium from brines with high Mg/Li ratios.
资助项目	National Natural Science Foundation of China[51774260] ; National Natural Science Foundation of China[51804289] ; National Natural Science Foundation of China[51904286] ; National Natural Science Foundation of China[21908231] ; National Key R&D Programme of China[2018YFC1900500] ; Key Research Programme of Frontier Sciences of the Chinese Academy of Sciences[QYZDJ-SSW-JSC021] ; Beijing Natural Science Foundation[2202053] ; CAS Interdisciplinary Innovation Team ; China Postdoctoral Science Foundation[2019M650848] ; Senior FWO Postdoctoral Fellowship[181203/12Z1920N]
WOS关键词	SELECTIVE EXTRACTION ; FREE ACID ; CHALLENGES ; COMPLEXES ; PHOSPHATE ; TITRATION ; BORON
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000581073700033
资助机构	National Natural Science Foundation of China ; National Key R&D Programme of China ; Key Research Programme of Frontier Sciences of the Chinese Academy of Sciences ; Beijing Natural Science Foundation ; CAS Interdisciplinary Innovation Team ; China Postdoctoral Science Foundation ; Senior FWO Postdoctoral Fellowship
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42569]
专题	中国科学院过程工程研究所
通讯作者	Zhu, Zhaowu; Qi, Tao
作者单位	1.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200 F, B-3001 Heverlee, Belgium 3.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Su, Hui,Li, Zheng,Zhang, Jian,et al. Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507[J]. HYDROMETALLURGY,2020,197:9.
APA	Su, Hui,Li, Zheng,Zhang, Jian,Zhu, Zhaowu,Wang, Lina,&Qi, Tao.(2020).Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507.HYDROMETALLURGY,197,9.
MLA	Su, Hui,et al."Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507".HYDROMETALLURGY 197(2020):9.