摘要
通过对沉淀反应过程pH值的变化研究和沉淀物的组成分析,确定了NH4HCO3与RECl3的沉淀反应。讨论了生产工艺条件对产品纯度的影响。
Precipitation reaction of NH4HCO3 with RECl3 is determined through study of pH variations during precipitation and the analysis of composition of the precipitants.Discussionis are made on the effect of the technological conditions on the product purity.
出处
《稀有金属与硬质合金》
CAS
CSCD
2003年第2期12-14,共3页
Rare Metals and Cemented Carbides
关键词
晶型
碳酸镨钕
沉淀
crstalline
promethium-neodymium carbonate
precipitation