稀土氟化物制备方法研究进展  

Research Process of Methods for Preparing Rare Earth Fluoride

作　　者：卢文礼 苗睿瑛 潘博 杨秉政[1,2,3] 张小伟 陈德宏 LU Wen-li;MIAO Rui-ying;PAN Bo;YANG Bing-zheng;ZHANG Xiao-wei;CHEN De-hong(GRIREM High Technology Co.,Ltd.,Langfang 065201,China;GRIREM Advanced Materials Co.,Ltd.,Beijing 100088,China;National Engineering Research Center for Rare Earth Materials,Beijing 100088,China)

机构地区：[1]有研稀土高技术有限公司,河北廊坊065201 [2]有研稀土新材料股份有限公司,北京100088 [3]稀土材料国家工程研究中心,北京100088

出　　处：《稀土》2023年第3期118-131,I0006,共15页Chinese Rare Earths

基　　金：河北省重点研发计划项目(19211503D)。

摘　　要：对现有干法氟化工艺和湿法氟化工艺进行详细总结,具体围绕干法氟化工艺中氟化氢气体法和氟化氢铵法以及湿法氟化工艺中氢氟酸沉淀法、碳酸稀土转型氟化法和草酸稀土氟化法进行研究总结。从氟化温度、时间、氟化率以及产品品质等多个维度对各种氟化工艺进行对比并提出展望,为后续探索稀土氟化物制备新工艺奠定基础。A detail introduction to the existing dry fluorination process and wet fluorination process is performed.The for⁃mer includes HF gas method and NH4HF2 method.The latter includes hydrofluoric acid precipitation process,rare earth car⁃bonate transformation fluorination process and rare earth oxalate fluorination process.Compared with fluorination temperature,reaction time,fluorination rate and product quality of various fluorination processes,it is considered that the dry fluorination process is more promising in the preparation of ultra⁃high pure rare earth fluorides.

关 键 词：干法氟化 湿法氟化 稀土氟化物 氟化氢气体 氢氟酸 

分 类 号：TF845[冶金工程—有色金属冶金]