核化学与放射化学Issue(3)：181-185,5.DOI:10.7538/hhx.2014.36.03.0181
四氟化铀和四氟化钍的高温水解
Pyrohydrolysis of Uranium Tetrafluoride and Thorium Tetrafluoride
摘要
Abstract
To meet the needs of the aqueous-reprocessing of used fuel from thorium molten salt reactor,the insoluble fluorides need to be converted into their corresponding oxides form.To realize this,a pyrohydrolysis method was proposed.The pyrohydrolysis behavior of UF4 and ThF4 under different temperature and time was studied,and the structural characterization of the pyrohydrolysis products and the dissolution tests of the products were performed.The results show that,UF4 and ThF4 are entirely converted into their corre-sponding oxides UO2.25 and ThO2 at 300 ℃ and 350 ℃.The results of the dissolution tests show that the pyrohydrolysis products of both UF4 and ThF4 can easily dissolved in 3 mol/L HNO3 and Thorex solution,respectively.关键词
钍基熔盐堆/四氟化铀/四氟化钍/高温水解/溶解Key words
thorium molten salt reactor/uranium tetrafluoride/thorium tetrafluoride/pyro-hydrolysis/dissolution分类
能源科技引用本文复制引用
董晓雨,郑小北,宋昱龙,刘玉侠,张岚..四氟化铀和四氟化钍的高温水解[J].核化学与放射化学,2014,(3):181-185,5.基金项目
中国科学院战略性先导科技专项(XDA02030000) （XDA02030000）
