CL-P_(507)-HCl体系柱色层分离提纯高纯氧化钕的研究  

Study on purification of highly pure neodymium oxide by extraction chromatography with CL P 507 HCl system

作　　者：李义久[1] 王雁鹏[1] 王光雨 程惠荣 倪亚明[1] 

机构地区：[1]同济大学化学系微量元素研究所

出　　处：《化学试剂》1999年第2期65-67,97,共4页Chemical Reagents

摘　　要：用ＣＬ－Ｐ５０７－ＨＣｌ体系柱色层法对镨、钕元素的分离进行了研究。讨论了树脂粒度、淋洗剂浓度、负载量、盐效应、柱长径比等因素对分离的影响，确定了镨、钕分离的较适合的条件。将上述结果用于去除高纯氧化钕中的镨杂质，取得了令人满意的结果。The separation of praseodymium(Ⅲ) and neodymium(Ⅲ) by extraction chromatography with the system 2 ethylhexyl phosphonic acid mono 2 ethylhexyl ester [HEH(EHP)] HCl has been studied. The influence of particle size of CL P 507 resin,concentration of hydrochloric acid as eluant,loading of rare earth column ratio(L/Φ) and ammonium chloride on the separation has been discussed.Proper conditions of separation have been found out.The method has been used to separate praseodymium(Ⅲ) impurity in highly pure neodymium oxide,satisfactory results were obtained.

关 键 词：P507 柱色层 提纯 氧化钕 高纯氧化钕 镨 分离 

分 类 号：TQ133.3[化学工程—无机化工] O614.335[理学—无机化学]