湿法冶金2024，Vol.43Issue(6)：640-645,6.DOI:10.13355/j.cnki.sfyj.2024.06.007
U3O8的硝酸连续溶解试验研究
Continuous Dissolution of U3O8 in Nitric Acid
摘要
Abstract
In view of the"bimodal"particle size distribution phenomenon of U3O8 raw materials,the process concept of rapid dissolution of fine U3O8 and continuous dissolution of large U3O8 at the bottom of the equipment was put forward,and a tank-type continuous dissolution device was designed.The rationality of the proposed tank-type dissolution device,the feasibility of the continuous dissolution process of U3O8 in nitric acid,and its applicability to different raw materials were verified through micro,small-scale,and pilot tests.The results show that under the conditions of the nitric acid concentration of 6 mol/L,dissolution temperature of approximately 60 ℃,and residence time of 40 minutes,U3O8 from different sources can be effectively dissolved,the uranium mass concentration in the dissolution solution is 350～400 g/L.关键词
八氧化三铀/连续溶解/硝酸/铀酰Key words
U3O8/continuous dissolution/nitric acid/uranyl nitrate分类
能源科技引用本文复制引用
康绍辉,叶开凯,张佳宇,牛玉清,李大炳,周志全,张永明,曹令华,任燕,王皓,曹笑豪..U3O8的硝酸连续溶解试验研究[J].湿法冶金,2024,43(6):640-645,6.基金项目
国家自然科学基金资助项目(U2267225) （U2267225）
国家重点研发计划项目(2023YFC2907802) （2023YFC2907802）
中核集团领创科研项目(CNNC-JCYJ202211). （CNNC-JCYJ202211）
