CH_3OH-LiNO_3-HNO_3-DTPA-阴离子交换树脂分离希土元素

THE SEPARATION OF RARE EARTH ELEMENTS IN THE SYSTEM OF CH_3OH-LiNO_3-HNO_3-DTPA-ANION EXCHANGE RESIN

摘要: 本文研究了CH_3OH-LiNO_3-HNO_3-DTPA-阴离子交换树脂体系分离La,Ce,Pr,Nd,Pm,Sm,Eu及Gd。通过静态平衡实验与动态柱实验,初步摸索了分离相邻希土元素的条件,达到相邻希土元素之间较好地分离。

Abstract: In this paper the separation of La, Ce, Pr, Nd, Pm, Sm, Eu, and Gd from its neighbouring rare earth element using the system of CH3OH-LiNO3-HNO3-DTPA anion exchange resin is studied. Better separation factors than those previously published are obtained.