CAS OpenIR
Recovery of lithium from salt lake brine using a mixed ternary solvent extraction system consisting of TBP, FeCl3 and P507
Su, Hui1,2,3; Li, Zheng4; Zhang, Jian1,2,3; Zhu, Zhaowu1,2; Wang, Lina1,2; Qi, Tao1,2
2020-11-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume197Pages:9
AbstractThe 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.
KeywordTernary solvent extraction Lithium Salt lake brine TBP P507 Stripping
DOI10.1016/j.hydromet.2020.105487
Language英语
WOS KeywordSELECTIVE EXTRACTION ; FREE ACID ; CHALLENGES ; COMPLEXES ; PHOSPHATE ; TITRATION ; BORON
Funding ProjectNational 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 Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationNational 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
WOS IDWOS:000581073700033
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42570
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Zhaowu; Qi, Tao
Affiliation1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 101408, Peoples R China
4.Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200 F, B-3001 Heverlee, Belgium
Recommended Citation
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.
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