An acid-free process for selective REE recovery from spent NdFeB magnets by room-temperature electrolysis

作者：Zhihan Zhang, Zhi Wang, Wang Dong, Min Rui, Wanhai Xiao, Yong Lin, Guobiao Li · 发表于：Green Chemistry · 年份：2023 · DOI：10.1039/d3gc03031h · 被引用次数：18 · 研究领域：Advancements in Battery Materials、Extraction and Separation Processes、Molten salt chemistry and electrochemical processes

An acid-free electrochemical process has been developed for the selective recovery of REEs from EOL NdFeB magnets at room temperature. Fe 2+ produced by NdFeB was oxidized at and hydrolyzed to Fe(OH) 3 in situ to separate from REEs. Subsequently, the recycling of ZnCl 2 electrolyte was realized.