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Electromigration separation of lithium isotopes: The multiple roles of crown ethers

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Crown ether is used widely in lithium isotope separation. Here a new system for the electromigration separation of lithium isotopes was established. By comparing the experimental results with and without crown ether, it was found that there are multiple roles for crown ether: phase transfer, selective chelation, dehydration and retention during electromigration. Though crown ether is conducive to the lithium ions migration from the anode solution into the organic solution and enrichment of Li-6 at the interface, unfavourable to the migration of lithium ions in organic solution, resulting in the weak migration efficiency and enrichment effect in organic solution.

ElectromigrationLithium isotope separationCrown etherMigration efficiencyCOMPOSITE MEMBRANEIONIC LIQUIDSDENSITIESPORES

Sun, Jinhe、Wang, Ciming、Zhang, Pengrui、Ju, Huiqun、Xue, Zixuan、Zhou, Xiaolong、Mao, Lianjing、Shao, Fei、Zou, Xingwu、Jing, Yan、Jia, Yongzhong

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Chinese Acad Sci

2022

Chemical Physics Letters

Chemical Physics Letters

EISCI
ISSN:0009-2614
年,卷(期):2022.787
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