摘要
本文对裂变99Mo提取后残液中铀的回收进行了不同类型萃取溶液的效率对比,最终选择了萃取效率最好的30%二-(2-乙基乙基)磷酸的正十二烷溶液进行了条件实验,结果表明体系的HNO3浓度在4.0mol/L附近铀的分配比达到最大值,萃取过程为放热反应,且提高搅拌强度有利于加快萃取速率。
This article has contrasted the different extraction systems,then selected 30% DEHPA in dodecane for further research on the basis of the results. The further research shows that the distribution ratio of uranium is approch the max. value when the concentration of HNO3 is about 4. 0 mol/L,the extraction is a heat release procces, and the stirring intensity can accelarate the extraction rate.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2006年第10期1200-1203,共4页
Chemical Research and Application
基金
中国工程物理研究院科学技术基金资助(20040538)
关键词
铀回收
萃取
分配比
uranium recovery
extraction
distribution ratio
