石油亚砜树脂分离稀土的性能研究

Study on the separation of rare earths withPSO resin

应用石油亚砜萃取树脂与ＮＨ＿４ＣＮＳ体系，测定了稀土元素的分配比（Ｋｄ）、分离因素（β）和分离度Ｒｓ），讨论了ＮＨ＿４ＣＮＳ的浓度、稀土进样量和温度等对稀土分离的影响。应用于混合稀土的分离和测定，分析了６０．３２％的氧化钇，相对标准偏差为±１．４７％。

The distribution ratio(Kd), separation factors and resolution were determined with petroleum sulfoxide(PSO)resin and NH_4 CNS as an eluant.The effects of NH_4CNS concentrations,loadings and tempertures,etc.on the RE separation were discussed.In an application to the RE separation and determination,yttrium oxide of 60.32% content was analyzed With RSD±1.47% .