石油亚砜萃取色谱法从混合稀土中分离钇

Separation of Yttrium from Mixed Rare Earth Oxides with Petroleum Sulfoxide Extraction Chromatography

本文用石油亚砜-硫氰酸铵萃取色谱法从混合稀土氧化物中分离钇,而后用EDTA络合滴定,分析混合稀土中60.70%的氧化钇,相对标准偏差为0.16%,对于不同的石油亚砜,应同时选择适宜的NH_4SCN浓度。

Yttrium was separated from mixed rare earth oxides with petroleum sulfoxide-NH_4SCN extraction chromatography and then titrated with EDTA. The relative standard deviation was 0.16% at 60.70% Y_2O_3. For different PSO, it is necessary to select proper concentration of NH_4SCN.