新型无机离子交换剂的研究Ⅰ．偏磷酸铈的合成及性能

Studies on New Inorganic Ion-Exchangers I.Synthesis and Performance of Cerium Partial phosphate

本文合成了新型无机离于交换荆——偏磷酸铈，对其合成条件、化学组成、离于交换容量、稳定性及结构进行了系统探讨。测定了不同酸度下１０种金属离于的分配系数，发现该交换剂对Ｐｂ￣（２＋）、Ｌａ￣（３＋）及ＴＨ￣（４＋）有特殊的吸附性，用柱层析法成功地分离了一些常见离于对。

A new inorganic ion-exchangers,Cerium partial phosphate,has been syn-thesied.The synthesis condition, ion-exchange capacity,the stability and structure of theexchanger have been studied systematically. ion distribution of ten metal-ions have beendertermined on this exchanger at different pH value. It has found high selectivity for Pb￣(2+)、La￣(3+)、Th￣(4+) ,Some impairs have been separated successfully with liquid column chromatogra-phy method.