METHOD FOR PROCESSING ARSENIC

摘要

A method for processing arsenic which includes a roasting process in which an arsenic-containing copper ore is roasted in an inert gas atmosphere to separate chalcopyrite from a volatile matter containing sulfides of arsenic; and a heat treatment process in which sulfur and an antioxidant are added to the volatile matter obtained in the roasting process followed by heat-treating in the inert gas atmosphere for dissolving sulfides of arsenic in the volatile matter.