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本文以C_(ED(?))=0.015M、C_(HN_4~+)=0.048-1.0M、PH=7.50的溶液作排代剂,研究了加压离子交换分离稀土元素时平衡区段两相组成与排代离子浓度的关系。提出了计算两相中排代离子浓度的方法,对两相组成随排代离子浓度变化的机理及提高排代离子浓度时引起谱带移速加快的原因进行了讨论。
In this paper, C_ (ED (?)) = 0.015M, C_ (HN_4 ~ +) = 0.048-1.0M, PH = 7.50 solution as a displacement agent, the study of ion exchange ion exchange equilibrium rare earth elements when the two phases Composition and displacement of the ion concentration relationship. The method of calculating the concentration of the ions in the two phases is proposed. The mechanism of the two phases changing with the concentration of the ions in the ions and the reasons of the accelerating speed of the bands are discussed.