[2L06-12] Nuclear Transmutation 2

[2L10] Development of Innovative Nuclear Waste Burning System by Fast Reactor Cycle Using Pu Metallic Fuel with MA

(19) Studies on higher rare earths FPs decontamination process alternatives

*Yoshiharu Sakamura¹, Masatoshi Iizuka¹, Tsuyoshi Murakami¹, Takashi Omori² (1. Central Research Institute of Electric Power Industry, 2. Toshiba Energy Systems & Solutions Corporation)

Keywords:Metal fuel fast reactor cycle, Uranium-free TRU metal fuel, Pyrometallurgical reprocessing, Rare-earth fission products, Decontamination performance, Process design, Material mass balance

Alternative methods for pyrometallurgical separation of rare earth FPs from spent uranium-free TRU metal fuel were investigated in comparison with reference liquid Cd cathode method from the viewpoints of applicability, effectiveness and influence on process design. As a result, application of liquid Ga as an alternative cathode material was considered as the most appropriate choice.