医用同位素生产堆燃料溶液杂质元素分离研究  

Separation of Impurity Elements in Fuel Solution of Medical Isotope Production Reactor

作　　者：邓启民 程作用 DENG Qimin;CHENG Zuoyong(Chengdu YUNKE Pharmaceutical Co.,Ltd,Chengdu 610041,China)

机构地区：[1]成都云克药业有限责任公司,成都610041

出　　处：《同位素》2020年第6期361-365,共5页Journal of Isotopes

摘　　要：医用同位素生产堆(MIPR)长期运行后累积的裂变元素将影响反应堆的正常运行,需要定期去除裂变元素。本研究采用辐照稳定性好的水合五氧化二锑(HAP)、水合氧化锰(HMD)和三氧化二铝(Al2O3)联合纯化的方式,含有杂质元素的模拟MIPR燃料溶液经纯化后,Zr和Se基本定量去除,Sr的去除效率大于95%,Ru和Ce的去除效率大于80%,中子毒物Sm的去除效率可达72.2%;交换剂材料中的Mn、Sb和Al在模拟料液中的浓度低于10 mg/L;铀的平均损失率为0.83%。三种交换剂联合使用的方式能够满足MIPR纯化的设计要求。The accumulation of fission products after long-term operation of Medical Isotope Production Reactor(MIPR)will affect the normal operation of the reactor and needs to be removed regularly,such as removing of those fission elements in simulated MIPR fuel solution using joint method of hydrated manganese dioxide(HMD),hydrated antimony pentoxide(HAP)and aluminum oxide(Al2O3).After the simulated solution containing impurities is purified with joint method,nearly 100%of Zr and Se,more than 95%of Sr,more than 80%of Ru and Ce can be removed.Removal yield of Sm can reach 72.2%.The concentrations of Al,Sb and Mn in solution are less than 10 mg/L.The average loss rate of uranium is 0.83%.The combined use of the three exchangers can meet the design requirements of MIPR fuel purification.

关 键 词：医用同位素生产堆 水合五氧化二锑 水合氧化锰 杂质元素 

分 类 号：TL922[核科学技术—核燃料循环与材料]