Study on Quick Precipitation of Neodymium Fluoride

摘要：

In view of the problems of slower precipitation rate and lower recovery rate in the traditional preparation process of neodymium fluoride, the process of conversion with ammonia bicarbonate and adding macromolecular precipitant aid to prepare neodymium fluoride was studied. The effect of HF amount, reaction temperature, rare earth concentrations and macromolecular precipitating aid on the recovery rate of rare earth and its precipitation rate were investigated. The particulate size, morphology and composition of NdF<,3> were analyzed by TEM, XRD, etc. A feasible process to produce good crystal degree neodymium fluoride with rapid precipitation and higher recovery rate was obtained.

关键词： neodymium fluoride precipitation macromolecular precipitating aid rare earths

作者: Li Pengfei(李鹏飞) Wang Yajun(王亚军) Guo Feng(郭锋)

作者单位: College of Materials Science and Engineering, Inner Mongolia University of Technology, Huhhot 010051 College of Chemical Engineering, Inner Mongolia University of Technology, Huhhot 010051, China

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 161-164

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）