Rare Earth Silicide Formation on Si Electrode in LiCl-KCI Melt to Establish a Novel Used Salt Treatment Process

摘要

Pyroprocessing of spent nuclear fuels which uses chemical and electrochemical reactions in molten salts has been developed as one of the promising technologies for advanced nuclear fuel cycle. A main step of the pyroprocessing is electrorefining process where a recovery of actinides from spent nuclear fuels is accomplished in an electrolyte, LiCl-KCl melt. After the electrorefining process, fission products (rare earths (REs), alkalis and alkaline earths) chlorides accumulate in the melt, the used LiCl-KCl melt.