摘要
本文研究了以碳酸氢铵转型制备氟化镧过程中添加大分子助沉剂的新工艺。初步探讨了其沉淀机理 ,并考察了各种因素对稀土收率的影响。用透射电镜、X射线衍射、差热—热重及X射线荧光光谱等分析方法对氟化镧产品的形貌、粒径。
A new technology of preparation of LaF 3 by converting NH 4HCO 3 with macromolecular compound as precipitating aid agent was studied.The mechanism of the precipitation was discussed primarily.Various factors affecting the yield of LaF 3 were also considered.The composition,appearance and grain size of the product were determined by TEM,XRD,DTA TG and X ray fluorescence.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2001年第3期311-314,共4页
Chemical Research and Application
基金
内蒙古工业大学校基金资助项目! (A970 0 8)
