Reproducing Method of Used Metal Stuffs

摘要

PURPOSE: A regeneration method of a metal adherent with solid organic scales is provided to suppress the abrasion and the degeneration of metallic materials by removing scales from a metal adherent using the mixed gas of an oxidizer and inert gas. CONSTITUTION: A regeneration method of a metal adherent with solid organic scales includes the following steps: scales on a metal adherent are heated to be molten; the molten products are dropped from the metal adherent to be removed; the scales on the metal adherent are combusted by the mixture of an oxidizer and vapor; the combusted products are dissolved using an aqueous alkali solution to be dissolved; and non-removed scales on the metal adherent are carbonated.