原子能科学技术2016，Vol.50Issue(2)：227-234,8.DOI:10.7538/yzk.2016.50.02.0227
Tho rex 流程钍铀分离工艺单元计算机模拟研究
Computer Simulation Study on Uranium and Thorium Separation (1B Extractor) in Thorex Process
摘要
Abstract
A computer program was developed to simulate the separation of thorium from uranium (1B) in the Thorex process based on the mathematical distribution model and the theory of cascade extraction in the system of Th(NO3 )4‐UO2 (NO3 )2‐HNO3‐H2 O/30% TBP‐dodecane .The program can be employed for simulating the steady‐state behavior of thorium ,uranium and nitric acid in 1B extractor .The reliability of the pro‐gram was verified by the reported data .The separation process was analyzed ,and the parameters of the process were optimized through changing the flow ratio and the con‐centration of stripping stream (1BX) as well as changing the flow ratio of the supple‐mentary extractant (1BS) .The results show that the separation of thorium from urani‐um is remarkably affected by the flow ratio of 1BX ,slightly by the flow ratio of 1BS and the nitric acid concentration of 1BX .T he best combination of parameters of the thorium‐uranium separation with different concentrations of feed stream (1BF) can be obtained by this program .关键词
计算机模拟/Thorex流程/萃取/钍铀分离Key words
computer simulation/Thorex process/extraction/thorium-uranium separation分类
能源科技引用本文复制引用
于婷,李瑞芬,李峥,赵皓贵,张春龙,何辉,李晴暖,张岚..Tho rex 流程钍铀分离工艺单元计算机模拟研究[J].原子能科学技术,2016,50(2):227-234,8.基金项目
中国科学院战略性先导科技专项资助 （）
