【作者】 沈兴海； 杨涛； 陈庆德；

【Author】 SHEN Xinghai;Yang Tao;Chen Qingde;Beijing National Laboratory for Molecular Sciences (BNLMS),Fundamental Science on Radiochemistry and Radiation Chemistry Laboratory,College of Chemistry and Molecular Engineering,Peking University;

【机构】 北京大学化学与分子工程学院放射化学与辐射化学重点学科实验室；

【摘要】 离子液体由于其特有的性质,在乏燃料后处理中的应用己受到广泛关注。本文综述了不同种类离子液体中多种萃取剂对乏燃料所含若干锕系元素及放射性裂片元素的萃取,重点分析了不同萃取体系的萃取效率、萃取选择性、萃取机理、反萃和辐照稳定性等关键问题。综合目前的研究成果,可发现:离子液体-萃取剂体系由于其独特的萃取机理,通常比传统萃取体系具有更高的萃取效率;一些萃取体系具有高选择性和辐照稳定性使其在乏燃料后处理中有很好的应用前景。本文最后对离子液体在乏燃料中的应用进行了总结与前景展望。更多还原

【Abstract】 The application of ionic liquids in the reprocessing of spent nuclear fuel has attracted much attention for their characteristic properties.In this article,the recent progress about extraction behaviors of some actinides and fission products in spent nuclear fuel by various extractants in different ionic liquids is reviewed.Especially,the key issues concerning the efficiency,selectivity and mechanism of extraction as well as striping and irradiation stability in different ionic liquid-based extraction systems are discussed.By summarizing the present research,we can find that the extraction efficiency in IL extraction systems was often higher than that in traditional extraction systems because of its extraction mechanism and the extraction selectivity of some ionic liquid-based extraction systems was good,indicating their application prospect in extraction.Finally,the application foreground of ionic liquid-based extraction systems were presented.更多还原