文献类型：期刊文献

英文题名：A rational strategy for synchronous extraction of lithium and boron from salt lake brines

作者：Pan, Yanan[1];Yu, Jianguo[1,2];Lin, Sen[1,2,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake Re, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai, Peoples R China

年份：2023

卷号：276

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20231714024875);WOS:【SCI-EXPANDED(收录号:WOS:000988503800001)】；

基金：This work was supported by the National Natural Science Foundation of China (21978094, U20A20142) , and Shanghai Rising -Star Program (22QA1402700) .

语种：英文

外文关键词：Li; Al-LDHs; Synchronous extraction; Salt lake brines; Lithium adsorption; Boron adsorption; Desorption regulation

摘要：A new strategy for synchronous lithium-boron extraction from brines was proposed based on the anionic interchangeability and plate composition tuning of Li/Al-LDHs. It was stated that the available boron could have a significant enhancement on the Li+ adsorption dependent on the co-adsorption and expanded layer spacing. Besides, pH had a significant regulating effect on the boron adsorption/desorption performance owing to the variational existence forms. Synchronous extraction experiments showed that in the low-salt system, the "lithium-boron" approach got a better extraction for both lithium and boron resources, whereas in the high-salt brines, the "boron-lithium" approach was obviously more appropriate with an extraction of 82.13% lithium and 85.88% boron by reason of the high desorption driving capacity. Combined with further application validation, the "boron-lithium" strategy could finally achieve a lithium resource utilization rate of 84.19% and a boron resource utilization rate of 95.02% for the Yiliping salt lake brine.