REACTOR RADIATOR

PROBLEM TO BE SOLVED: To provide a reactor radiator which has high efficiency of heat transfer from a reactor and has material easily separated therefrom for product recycling.SOLUTION: The reactor radiator includes: a heat sink 21 including a burial hole 21b in which at least a lower half of a shell type reactor 10 formed to have a short columnar external shape is buried and of which the bottom surface and the side surface are brought into contact with the bottom surface and the side surface via compressible sheet-like heat transfer materials 23 and 24, and a radiation fin 21a; and a flanged cap-like cover 26 which covers a portion projected from the burial hole 21b, of the shell type reactor 10 and has a flange 26a screwed to the heat sink 21 to fix the shell type reactor 10 in the burial hole 21b.