METHOD FOR REPROCESSING NITRIDE SPENT NUCLEAR FUEL IN MOLTEN SALTS

A method for reprocessing nitride spent nuclear fuel in molten salts is proposed, comprising chlorinating the fuel in a melt of a mixture of alkali and/or alkaline earth metal chlorides containing cadmium dichloride. The chlorination is carried out in an apparatus for reprocessing nitride spent nuclear fuel using an inert gas atmosphere. The apparatus has a heated zone containing a reactor with molten chlorides and nitride spent nuclear fuel submerged therein, and also a cold zone arranged under the reactor. In the chlorination process, the zone of the apparatus containing the reactor is heated to a temperature greater than 700°C, the nitride spent nuclear fuel is kept in the melt until fully chlorinated, wherein the cold zone of the apparatus is used for crystallizing metallic cadmium which forms during the chlorination. The technical result of the invention consists in increasing the degree of conversion of nitride spent nuclear fuel in molten chloride to 100%, which reduces or completely excludes the necessity of additional stages of repeated filtration and reprocessing of spent nuclear fuel.