无机材料学报2026，Vol.41Issue(2)：150-158,9.DOI:10.15541/jim20250101
干法后处理熔盐中Sr/Cs去除方法的研究进展
Recent Progress on Removal of Sr/Cs from Molten Salt in Dry Reprocessing
摘要
Abstract
Dry reprocessing technology has advantages of irradiation resistance,proliferation resistance and simplified waste treatment,thereby rendering it a preferred technology for reprocessing of spent fuel of advanced fast reactors.Molten salt electrolytic refining serves as the core technology of dry reprocessing,primarily capitalizing on the difference in redox potential between actinides such as uranium and plutonium and other fissionable elements within a molten salt system.This technology facilitates separation and recovery of actinides.During the electrolytic refining process,lanthanide elements and fission elements,such as Sr and Cs,tend to accumulate within the molten salt,which can change the physicochemical properties of molten salt,thus seriously affecting the efficiency of electrolytic refining.In addition,fission products such as 90Sr and 137Cs are water-soluble and long-lived nuclides,posing significant environmental hazards if inadequately managed.Therefore,effective purification of fission elements such as Sr and Cs from molten salt is imperative,not only to improve the efficiency of dry reprocessing via molten salt electrolysis,but also as a crucial strategy to reduce the discharge of radioactive waste.This paper summarizes the current research status of Sr and Cs removal methods in molten salts,comparatively analyzes the separation principles and separation effects of different methods,such as electrolysis,crystallization,decompression distillation,precipitation,and ion exchange.Furthermore,it explores prospective direction of development and potential applicability of various material systems.关键词
干法后处理/电解精炼/Sr/Cs/熔盐净化/综述Key words
dry reprocessing/electrolytic refining/Sr/Cs/molten salt purification/review分类
能源科技引用本文复制引用
刘占一,李勉,欧阳晓平,柴之芳,黄庆..干法后处理熔盐中Sr/Cs去除方法的研究进展[J].无机材料学报,2026,41(2):150-158,9.基金项目
国家自然科学基金(52172254,U23A2093)National Natural Science Foundation of China(52172254,U23A2093) （52172254,U23A2093）
