To dispore a container with solder parts left in it without scarcely causing a pollution problem by heating the container and waste cloth stained with solder paste and solder on a grate at a specific temp. or higher, buring it up and also, recovering the molten solder at the lower part of the grate.

At the time of charging the vessel, etc., P sticking the paste into the receiving part 9 in a recovering apparatus, a charging box 17 is lowered downward along an elevating/lowering rail 16, and an outer door 10 is closed. Simultaneously, an inner door 11 is opened and the vessel, etc., P sticking the paste in the receiving part 9 is charged in the inner part of the apparatus 1. The vessel etc., P sticking the paste is laid on the grate 5 and burnt up at ≥800°C with the flame of a burner 7. Since the solder paste, the solid solder, etc., are melted at ≤200°C, these materials are perfectly melted at the time of burning of the vessel, etc., P sticking the paste, and the molten solder is dropped downward from the holes 6 of the grate 5 and deposited on the inclined furnace hearth 2.