从废旧稀土抛光粉中回收稀土研究新进展  

Research progress on the recovery of rare earth from waste rare earth polishing powder

作　　者：蒋鹏 阙靓华 周迅 廖春发[1,2] 李啊林 JIANG Peng;QUE Lianghua;ZHOU Xun;LIAO Chunfa;LI Ahlin(Institute of Efficient Exploitation and High Value Utilization of Rare Metal Resources,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;National Innovation Center for Rare Earth Functional Materials,Ganzhou 341000,Jiangxi,China;Gannan Normal University,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学稀有金属资源高效开发及高值利用研究所,江西赣州341000 [2]国家稀土功能材料创新中心,江西赣州341000 [3]赣南师范大学,江西赣州341000

出　　处：《有色金属科学与工程》2023年第6期895-902,共8页Nonferrous Metals Science and Engineering

基　　金：国家自然科学基金资助项目(51464012)。

摘　　要：随着稀土抛光粉在玻璃抛光等行业的应用,产生的废旧失效的稀土抛光粉量逐年增加。稀土是不可或缺也不可再生资源,从废旧失效的稀土抛光粉中回收稀土已成为必然,国内外科技工作者对此进行了大量的研究,取得一定成效。本文就废旧稀土抛光粉稀土及杂质元素的化学组成和物相组成,尤其是Al、Si等的赋存状态进行分析,综述了近几年最新分离提取Ce、La等稀土的回收工艺,分析了分离过程中稀土元素的物相转变和杂质元素的浸出行为及深度除杂路径,并对从废旧稀土抛光粉中回收稀土发展方向进行总结和展望。With the wide application of rare earth polishing powder in glass polishing and other industries,the amount of waste and invalid rare earth polishing powder has been increasing year by year.Rare earth is an indispensable and non-renewable resource.It has become inevitable to recover it from its waste and invalid polishing powder.Domestic and foreign researchers have carried out fruitful research on this topic.In this paper,the chemical composition and phase composition of rare earth and impurity elements in waste rare earth polishing powder were analyzed,especially the occurrence state of Al,Si,etc.,and the latest separation and extraction of rare earth Ce and La in recent years were reviewed.The phase transition of rare earth elements,the leaching behavior of impurity elements,and the deep impurity removal path in the separation process were analyzed.The development direction of rare earth recovery in waste rare earth polishing was summarized and prospected.

关 键 词：废旧稀土抛光粉 回收 物相转变 除杂 

分 类 号：TF111.31[冶金工程—冶金物理化学] TF111.34