焦磷酸氧锆对铯的吸附性能  

Adsorption Behavior of Cesium on Zirconyl Pyrophosphate

作　　者：宋凤丽 李辉波[2] 苏哲[2] 丛海峰[2] 张敏 刘志辉 林灿生[2] 王孝荣[2] 叶国安[2] 

机构地区：[1]环境保护部核与辐射安全中心核燃料与放射性废物部,北京100082 [2]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2014年第1期60-64,共5页Journal of Nuclear and Radiochemistry

摘　　要：研究了静态实验条件下,吸附平衡时间、酸度、温度对铯在焦磷酸氧锆上吸附的影响以及铯在不同酸度下的解吸,并研究了动态实验条件下,焦磷酸氧锆的吸附淋洗性能、焦磷酸氧锆从辐照靶件溶解液中提取铯的性能。结果表明:焦磷酸氧锆对铯的吸附约30min可达平衡;低酸低温有利于吸附,高温高酸有利于解吸;焦磷酸氧锆从辐照靶件溶解液中提取铯的回收率约为100%。In the paper the adsorption behavior of cesium was studied. The effect of adsorp- tion equilibrium time, the temperature on the adsorption behavior of cesium and the effect of nitric acid concentration on the elution behavior of cesium were examined in static experi- ment. The adsorption behavior and the elution behavior of cesium were also investigated in dynamic experiment. Furthermore, the adsorption behavior and the elution behavior of cesium from high level liquid waste were also studied. Results show that the adsorption equilibrium time is about 30 min. The adsorption distribution coefficient decreases along with increasing the acid concentration and the temperature. In the dynamic tests with the mixed fission product elements solution, 137Cs in solution is almost all reclaimed.

关 键 词：焦磷酸氧锆 吸附 铯 

分 类 号：TL241.15[核科学技术—核燃料循环与材料]