首页>
外国专利>
PROCESS FOR RECYCLING CONSUMED NUCLEAR FUEL AND FOR PRODUCING A MIXED URANO PLUTONIUM OXIDE
PROCESS FOR RECYCLING CONSUMED NUCLEAR FUEL AND FOR PRODUCING A MIXED URANO PLUTONIUM OXIDE
展开▼
机译:回收消耗的核燃料和生产混合的铀酰氧化LU的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Recycling process of an used nuclear fuel and preparation of a mixed oxide of uranium and plutonium comprises: separation of uranium and plutonium from fission products present in an aqueous nitric solution resulting from the used nuclear fuel dissolved in nitric acid, distribution of obtained uranium and plutonium in two aqueous phases, where one of the aqueous phase contains plutonium and uranium, and the other aqueous phase has only uranium; purification of obtained plutonium and uranium; and co-conversion of obtained plutonium and uranium into a mixed oxide of uranium and plutonium. Recycling process of an used nuclear fuel and preparation of a mixed oxide of uranium and plutonium comprises: separation of uranium-(VI) and plutonium-(IV) (where VI and IV are the oxidation number) from fission products, americium and curium present in an aqueous nitric solution resulting from the used nuclear fuel dissolved in nitric acid, where the separation comprises co-extraction of the aqueous solution containing uranium and plutonium by contacting the solution with a solvent phase (i.e. immiscible with water) containing an extracting agent in the presence of an organic diluent; distribution of obtained uranium and plutonium in two aqueous phases, where the first aqueous containing plutonium and uranium, and the second aqueous phase containing uranium with out plutonium; purification of plutonium and uranium from the first aqueous phase; and co-conversion of obtained plutonium and uranium into a mixed oxide of uranium and plutonium.
展开▼