氟碳铈镧精矿制取氯化稀土的研究  

Study of Making RE Chloride in F-C-Ce-La Concentrates

作　　者：姜海珍[1] 陈冬英[1] 夏津 

机构地区：[1]赣州有色冶金研究所,江西赣州341000 [2]赣州虔东稀土金属冶炼有限公司,江西赣州341000

出　　处：《江西有色金属》2002年第3期24-26,共3页Jiangxi Nonferrous Metals

摘　　要：研究了氟碳铈镧精矿制取氯化稀土的工艺流程 ,试验确定了纯碱焙烧法分解氟碳铈镧精矿的工艺条件 ,该工艺能有效地除去碱土金属和钍等杂质 ,得到的稀土溶液REO>170g/L,Fe约5mg/L,ThO2<lmg/L ,Ca<50mg/L,稀土直收率大于85 %。The process flow of making RE chlorides in F_C_Ce_La concentrates is studied and the technological conditions of decomposing F_C_Ce_La concentrates in soda ash sintering process is determined in this paper. This process flow can remove alkaline_earth metals and Th effectively. The result of the experiment are:REO>170g/L, Fe≈5mg/L,ThO2<1mg/L,Ca<50mg/L,the rate of recovery of REO>85%.

关 键 词：氟碳铈镧精矿 氯化稀土溶液 除杂 稀土直收率 

分 类 号：TF845[冶金工程—有色金属冶金]