Pyrochemical reprocessing method for spent nuclear fuel

摘要

This invention is provided for improvement of corrosion-resistant property of a crucible and for promotion of safety in a pyrochemical reprocessing method for the spent nuclear fuel. The spent nuclear fuel is dissolved in a molten salt placed in the crucible. In a pyrochemical reprocessing method, the nuclear fuel is deposited, and the crucible ( 2 ) is heated by induction heating. Cooling media ( 5, 6 ) are supplied to cool down, and a molten salt layer ( 7 ) is maintained by keeping balance between the heating and the cooling, and a solidified salt layer ( 8 ) is formed on inner wall surface of the crucible.