稀土草酸盐沉淀过程中颗粒大小的控制

Control of Mean Particle Size of Rare Earth Oxalate in Precipitation Process

稀土草酸盐沉淀法是制备稀土氧化物的主要方法。本文对硝酸体系中的稀土沉淀过程进行了研究,推导出草酸盐、草酸铵盐、草酸钾盐和草酸钠盐的平均粒径与过饱和度之间的关系。

Precipitation by oxalate is the primary method to produce rare earth oxides.The precipitatation process of rare earth in nitric acid was investigated and the relationship between supersaturation and mean particle size of rare earth oxalate was obtained.