哈尔滨工程大学学报2023，Vol.44Issue(12)：2163-2169,7.DOI:10.11990/jheu.202309011
UO2在碳酸盐熔盐中的反应行为研究
Research on the reaction behavior of UO2 in molten carbonate
摘要
Abstract
To obtain basic reaction data for UO2 in an alkali metal molten carbonate system,we investigated the equilibrium concentration and reaction behavior of UO2 in molten carbonate using inductively coupled plasma mass spectrometry,X-ray diffraction,infrared spectroscopy and some other characterization methods.The results show that the equilibrium concentrations of uranium under the above conditions exhibited a"V"shaped distribution in the temperature range of 500～700℃,which were in the range of 20～220 μg/g.The minimum uranium concen-tration was below 30 and 60 μg/g(at 600℃)in the binary and ternary molten salt systems,respectively.The UO2 reaction products in molten carbonate were mainly diuranates(<700℃).The reaction behavior of UO2 in the molten carbonate system was systematically analyzed to verify the feasibility of oxidizing UO2 using molten carbonate oxidation technology,which provides basic data to support the development of this technology.关键词
乏燃料后处理/碱性体系/碳酸盐熔盐/UO2/反应产物/平衡浓度/物相结构/氧化处理Key words
spent fuel reprocessing/alkaline system/molten carbonate/UO2/reaction product/equilibrium con-centration/phase structure/oxidative treatment分类
能源科技引用本文复制引用
侯晨曦,何明键,张萌,矫彩山,何辉..UO2在碳酸盐熔盐中的反应行为研究[J].哈尔滨工程大学学报,2023,44(12):2163-2169,7.基金项目
国家自然科学基金核技术创新联合基金项目(U1967219). （U1967219）
