论文部分内容阅读
目前工业化的Purex流程是二循环流程,即共去污分离一循环与铀、钚净化二循环。对燃耗浅、冷却时间长的乏燃料,由于其比放射性低,锆(Zr)、钌(Ru)等难去污元素放射性(或含量)较低,因而对流程的去污要求降低,此类乏燃料可研究采用单循环流程进行处理,以减少废物,简化流程。单循环流程工艺方法主要是通过提高共去污过程的铀饱和度,并适当提高萃取过程温度,以
At present, the industrialization of the Purex process is a two-cycle process, that is, a total of one cycle of decontamination and separation of uranium, plutonium purification cycle. Spent fuel with low burnup and long cooling time has lower requirements on the decontamination of the process due to its lower specific radioactivity, lower radioactivity (or content) of difficult-to-decontaminate elements such as zirconium (Zr) and ruthenium (Ru) Spent spent fuel can be studied using a single-cycle process to reduce waste and streamline processes. Single-cycle process is mainly through the process of improving the total decontamination uranium saturation, and the appropriate increase in the extraction process temperature to