高纯金属铈的制备新工艺研究  

Study on a New Process for Preparation of High-purity Metal Cerium

作　　者：黄美松 

机构地区：[1]湖南稀土金属材料研究院,湖南长沙410126

出　　处：《稀有金属与硬质合金》2014年第4期7-10,30,共5页Rare Metals and Cemented Carbides

基　　金：国家高技术研究发展计划(863计划)(2011AA03A409)

摘　　要：研究了一种以高纯氧化铈为原料制备高纯金属铈的新工艺,采用钙热还原-真空熔炼-悬浮区熔-电迁移联合法制备提纯,得到了相对纯度为Ce/TREM≥99.99%、绝对纯度为99.961%的高纯金属铈。本工艺可用于高纯稀土金属试剂的制备。A new process was studied for the preparation of high-purity metal cerium with high-purity CeO2 as the raw material. The process of calcium-thermal reduction, vacuum melting,floating zone melting and solid-state electric migration is applied for preparation and refining of high-purity metal cerium,and the product has the relative purity of Ce/TREM≥99.99% and the absolute purity of 99. 961%. The process is applicable for the preparation of high-purity RE metallic reagent.

关 键 词：高纯金属铈 钙热还原 真空氟化 制备 新工艺 

分 类 号：TF845.6[冶金工程—有色金属冶金]