稀土元素对提铯离子筛交换性能的影响  

Effect of Rare Earth Elements on Exchange Properties of Cesium Ion Sieve

作　　者：张惠源[1] 王榕树[1] 林灿生[2] 张先业[2] 

机构地区：[1]天津大学化学工程学院,天津300072 [2]中国原子能科学研究院,北京102413

出　　处：《中国稀土学报》2001年第3期221-224,共4页Journal of the Chinese Society of Rare Earths

基　　金：国家"8 63"计划新材料领域项目 !(863 715 0 0 4 2 2 0 );国家自然科学基金资助项目 !(2 99710 2 2 )

摘　　要：对比了提铯离子筛对铯离子与部分稀土元素的交换容量和分配系数 ;研究了钕离子对提铯离子筛铯离子交换性能的影响 ,以及稀土元素存在对提铯离子筛在高放废液中选择性的影响。稀土元素对提铯离子筛的铯离子交换容量有一定的影响 ,但对铯离子分配系数影响不大 ;只要选择合适的液固比V∶m 。The effect of rare earth elements on the cesium ion exchange properties of the functionalized ecomaterials cesium ion sieve (shorted as Cs IS) was studied. The investigation indicates that rare earth elements have effect on the cesium ion exchange capacity, but hardly influence the distribution coefficient for cesium ion on Cs IS. In the simulated high level radioactive liquid waste (HLLW) system, the results of the selective test show that if the V∶m is suitable, the effect of rare earth elements on the cesium ion exchange rate on Cs IS is very small.

关 键 词：稀土 提铯离子筛 高效废液 处理 无机离子交换 铯 提取 交换性能 

分 类 号：TL941[核科学技术—辐射防护及环境保护]