Yaru Hu , Yixing Gou , Dongxiang Zhang , Jiafei Jiang , Bader Al-Anzi , Zirui Li
{"title":"通过离子浓度极化微流体通道中的力环境调制从盐湖卤水中提取锂的数值模拟","authors":"Yaru Hu , Yixing Gou , Dongxiang Zhang , Jiafei Jiang , Bader Al-Anzi , Zirui Li","doi":"10.1016/j.hydromet.2023.106254","DOIUrl":null,"url":null,"abstract":"<div><p><span>Force-environment-modulated microfluidic devices possess significant potential for the efficient lithium extraction from salt-lake brines. This paper proposes a novel force-environment-modulated system for the simultaneous Li</span><sup>+</sup> concentration and Mg<sup>2+</sup> removal from high Mg<sup>2+</sup>/Li<sup>+</sup><span> ratio (MLR) brines. In this system, multiple parallel barriers are positioned within a microchannel to regulate the flow of fluids. The differentiated horizontal fluid flow velocities implement a localized region of force balance for Li</span><sup>+</sup> exclusively, enabling Li<sup>+</sup> to be collected at the upward outlet while continuously expelling other ions. In addition, a vertical barrier in front of the balance region will increase Li<sup>+</sup> enrichment and decrease it on the opposing side, thus further enhancing the concentration of Li<sup>+</sup> and the removal of Mg<sup>2+</sup> to a greater extent. The results obtained through two-dimensional simulation using a diluted model brine demonstrate that this system has the capability to concentrate Li<sup>+</sup> by 4.5 times and achieve an 89% removal of Mg<sup>2+</sup>, where the MLR decrease to 3.45, and the separation factor reaches 6.17. The modulation of force environments for differently charged particles provides a new approach to achieve their simultaneous concentration and separation.</p></div>","PeriodicalId":13193,"journal":{"name":"Hydrometallurgy","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical simulation of Lithium extraction from salt Lake brines through force environment modulation in microfluidic channels with ion concentration polarization\",\"authors\":\"Yaru Hu , Yixing Gou , Dongxiang Zhang , Jiafei Jiang , Bader Al-Anzi , Zirui Li\",\"doi\":\"10.1016/j.hydromet.2023.106254\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Force-environment-modulated microfluidic devices possess significant potential for the efficient lithium extraction from salt-lake brines. This paper proposes a novel force-environment-modulated system for the simultaneous Li</span><sup>+</sup> concentration and Mg<sup>2+</sup> removal from high Mg<sup>2+</sup>/Li<sup>+</sup><span> ratio (MLR) brines. In this system, multiple parallel barriers are positioned within a microchannel to regulate the flow of fluids. The differentiated horizontal fluid flow velocities implement a localized region of force balance for Li</span><sup>+</sup> exclusively, enabling Li<sup>+</sup> to be collected at the upward outlet while continuously expelling other ions. In addition, a vertical barrier in front of the balance region will increase Li<sup>+</sup> enrichment and decrease it on the opposing side, thus further enhancing the concentration of Li<sup>+</sup> and the removal of Mg<sup>2+</sup> to a greater extent. The results obtained through two-dimensional simulation using a diluted model brine demonstrate that this system has the capability to concentrate Li<sup>+</sup> by 4.5 times and achieve an 89% removal of Mg<sup>2+</sup>, where the MLR decrease to 3.45, and the separation factor reaches 6.17. The modulation of force environments for differently charged particles provides a new approach to achieve their simultaneous concentration and separation.</p></div>\",\"PeriodicalId\":13193,\"journal\":{\"name\":\"Hydrometallurgy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2023-12-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hydrometallurgy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0304386X23002372\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Hydrometallurgy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304386X23002372","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Numerical simulation of Lithium extraction from salt Lake brines through force environment modulation in microfluidic channels with ion concentration polarization
Force-environment-modulated microfluidic devices possess significant potential for the efficient lithium extraction from salt-lake brines. This paper proposes a novel force-environment-modulated system for the simultaneous Li+ concentration and Mg2+ removal from high Mg2+/Li+ ratio (MLR) brines. In this system, multiple parallel barriers are positioned within a microchannel to regulate the flow of fluids. The differentiated horizontal fluid flow velocities implement a localized region of force balance for Li+ exclusively, enabling Li+ to be collected at the upward outlet while continuously expelling other ions. In addition, a vertical barrier in front of the balance region will increase Li+ enrichment and decrease it on the opposing side, thus further enhancing the concentration of Li+ and the removal of Mg2+ to a greater extent. The results obtained through two-dimensional simulation using a diluted model brine demonstrate that this system has the capability to concentrate Li+ by 4.5 times and achieve an 89% removal of Mg2+, where the MLR decrease to 3.45, and the separation factor reaches 6.17. The modulation of force environments for differently charged particles provides a new approach to achieve their simultaneous concentration and separation.
期刊介绍:
Hydrometallurgy aims to compile studies on novel processes, process design, chemistry, modelling, control, economics and interfaces between unit operations, and to provide a forum for discussions on case histories and operational difficulties.
Topics covered include: leaching of metal values by chemical reagents or bacterial action at ambient or elevated pressures and temperatures; separation of solids from leach liquors; removal of impurities and recovery of metal values by precipitation, ion exchange, solvent extraction, gaseous reduction, cementation, electro-winning and electro-refining; pre-treatment of ores by roasting or chemical treatments such as halogenation or reduction; recycling of reagents and treatment of effluents.