{"title":"Extraction of Lithium from Magnesium-Rich Solution Using Double Metal Salts as Co Extraction Reagents","authors":"Wanji Zhou, Sixia Li","doi":"10.15261/serdj.31.21","DOIUrl":null,"url":null,"abstract":"</p><p>In this study, a new extraction system NaPF<sub>6</sub> + NaClO<sub>4</sub> + TBP has nearly the same extraction efficiency of Li<sup>+</sup> as the NaPF<sub>6</sub> + TBP system, and nearly the same stripping efficiency of Li<sup>+</sup> as NaClO<sub>4</sub> + TBP system. The effect of NaClO<sub>4</sub> and NaPF<sub>6</sub> concentration, and phase ratio on extraction efficiency was investigated. At the optimal conditions, the single extraction efficiency of Li<sup>+</sup> is 77.1%. The stripping efficiency of Li<sup>+</sup> reaches 90.7% using pure water as a stripping agent with the volume ratio of the aqueous phase to the organic phase (A/O) of 3. TBP + NaPF<sub>6</sub> + NaClO<sub>4</sub> system has great potential in Li<sup>+</sup> extraction from Mg<sup>2+</sup> rich solution. </p>\n<p></p>","PeriodicalId":21785,"journal":{"name":"Solvent Extraction Research and Development-japan","volume":"87 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solvent Extraction Research and Development-japan","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15261/serdj.31.21","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, a new extraction system NaPF6 + NaClO4 + TBP has nearly the same extraction efficiency of Li+ as the NaPF6 + TBP system, and nearly the same stripping efficiency of Li+ as NaClO4 + TBP system. The effect of NaClO4 and NaPF6 concentration, and phase ratio on extraction efficiency was investigated. At the optimal conditions, the single extraction efficiency of Li+ is 77.1%. The stripping efficiency of Li+ reaches 90.7% using pure water as a stripping agent with the volume ratio of the aqueous phase to the organic phase (A/O) of 3. TBP + NaPF6 + NaClO4 system has great potential in Li+ extraction from Mg2+ rich solution.
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