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.
作者
支冬安
张志成
王辉
夏良树
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)
出处
《核科学与工程》
CAS
CSCD
北大核心
2021年第2期427-432,共6页
Nuclear Science and Engineering
关键词
界面污物
磷酸二丁酯
锆
钌
铈
铀
Interfacial crude
HDBP
Zirconium
Ruthenium
Cerium
Uranium
