摘要
以从钛白废酸中提取的粗钪(Sc2O399%～99.95%)为原料,采用酸溶解、T204和D305多级萃取、反萃以及草酸沉淀等提纯工序,得到的草酸钪经煅烧后可以获得回收率93.49%、纯度99.999%的高纯氧化钪。
With crude scandium （Sc203 99%-99.95%） extracted from titanium white waste acid as raw material, scandium oxalate was prepared with the following purification processes including acid dissolu-tion, T204 and D305 multistage extraction and back extraction, oxalic acid precipitation. The results show that scandium oxide with a high purity of 999% is obtained with the recovery of 93.49% after scandium oxalate calcining.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2012年第11期44-46,共3页
Nonferrous Metals（Extractive Metallurgy)
基金
国家科技支撑计划项目(2012BAB10B11)
关键词
稀土
氧化钪
提纯
钛白废酸
rare earth
scandium oxide
purification
titanium white waste acid
