Purex流程中铀、钚、锆、钌混合溶液界面污物的成因研究  

Study on the Formation of Interfacial Crude in the Mixed Solution of Uranium,Plutonium,Zirconium and Ruthenium in the Purex Process

作　　者：支冬安 张志成 王辉[2] 夏良树[1] ZHI Dongan;ZHANG Zhicheng;WANG Hui;XIA Liangshu(University of South China,Institute of Nuclear Science and Technology,Hengyang of Hunan Prov.421001,China;Institute of Radiation Chemistry,China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核科学与工程》2021年第2期427-432,共6页Nuclear Science and Engineering

摘　　要：本文采用Ce模拟Pu,以U、Ce、Zr、Ru混合溶液模拟乏燃料溶解液,磷酸二丁酯(HDBP)模拟降解产物,采取单级萃取方式研究乏燃料溶解液中界面污物的生成情况,定性分析了界面污物的基本组成,探讨了界面污物的成因。结果表明,铀、锆、铈会都会参与界面污物的生成;铀、锆对界面污物的生成有促进作用,铈对界面污物生成的影响不大,而硝酸浓度对界面污物的生成起逆向作用。Ce was used to simulate Pu,the mixed solution of U,Ce,Zr and Ru was used to simulate the spent nuclear fuel solvent,and dibutyl phosphate(HDBP)was used to simulate the degradation products.The formation of interfacial dirt in the spent nuclear fuel solvent was studied by single-stage extraction,the basic composition of the interfacial crude was qualitatively analyzed,and the causes of the interfacial crude were discussed.The results show that uranium,zirconium and cerium will all be involved in the formation of the interface crude;uranium and zirconium could promote the generation of interfacial crude,while cerium had little effect on the generation of the interfacial crude,while acidity played a reverse role on the generation of the interfacial crude.

关 键 词：界面污物 磷酸二丁酯 锆 钌 铈 铀 

分 类 号：TL24[核科学技术—核燃料循环与材料]