Patent ID: 8957276
Filing Date: 2015-02-17
Classification: C22B,Y02P

Abstract:
1. A method of processing a waste material that contains mercury or a mercury compound, and chlorine or a mercury chloride, the method comprising the steps of: before a blasting treatment and before placing an explosive in a treatment vessel, adding a chlorine scavenger to the waste material in an amount that is equal to or greater than an amount required for complete recovery of chlorine in the waste material through a chemical reaction of the chlorine and the chlorine scavenger; stowing the waste material in the treatment vessel; placing the explosive in the treatment vessel; and subjecting the waste material to a blasting treatment including detonating the explosive inside a pressure-proof container, wherein the chlorine scavenger prevents chlorine atoms generated in the blasting treatment from recombining with mercury atoms contained in the waste during the blasting treatment.