以氯化稀土为原料制备稀土抛光粉的研究  

Preparation of RE Polishes From RE Chloride

作　　者：程耀庚[1] 陈建设[1] 魏绪钧[1] 

机构地区：[1]东北大学,沈阳110006

出　　处：《稀有金属与硬质合金》1998年第1期9-13,共5页Rare Metals and Cemented Carbides

摘　　要：以氯化稀土为原料，研究了焙烧温度、焙烧时间、氟化、合成中间体等条件对制备稀土抛光粉性能的影响，并用粒度仪、SEM、XRD等分析手段对所得稀土抛光的性能进行了表征．结果表明，以采用（NH4）2SO4沉淀，然后NaOH转化，经过氟化，所得中间体在900℃下焙烧3h的制备工艺为宜。Study is made of the effects of roasting temperature, roasting time, fluoration and different intermediates on the properties of RE polishes from RE chloride. The properties of obtained RE polishes are indicated by particle analyzer, SEM,XRD. The results show that the following process is more for RE polishes (NH4)2SO4 precipitation followed by NaOH conversion,fluorating and 3 h roasting of the intermediate at 900 ℃

关 键 词：氯化稀土 抛光粉 焙烧 氟化 氧化铈 

分 类 号：TB44[一般工业技术] TG175[金属学及工艺—金属表面处理]