用硝酸铵复盐沉淀法制备高纯硝酸铈铵

Jun QIAO,Ying MA,Jingjing WANG,Qishan YANG,Hongliang SHI,Kai HUANG

Hydrometallurgy of China（2016）

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Abstract

研究了以硝酸铵复盐沉淀法制备高纯硝酸铈铵,考察了不同条件对硝酸铈铵氧化率、收率、重金属杂质质量分数的影响,对比了高、低温2种条件下制备的产品质量.结果表明:硝酸铵复盐沉淀法所制备的硝酸铈铵的组成为(NH4)2 [Ce(NO3)6];最佳条件下制备的产品中,∑REO质量分数大于31％,重金属杂质质量分数小于1.0×10-5,产品氧化率大于98.5％,纯度很高.

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