METHOD FOR PROCESSING ARSENIC AND ARSENIC-CONTAINING COMPOUND

摘要

Provided is a processing method for arsenic, with which it is possible for the arsenic that is contained in copper ore containing arsenic to be processed into a stable form suitable for long-term stockpiling and storage. This arsenic processing method is characterized by including: a roasting step for roasting copper ore containing arsenic in a non-oxidizing atmosphere, and separating the copper pyrites from the volatiles that contain arsenic sulfides; a heat treatment step for heat treating the volatiles obtained in the roasting step, in a non-oxidizing atmosphere, causing the arsenic sulfides in the volatiles to melt; a pulverization step for pulverizing the volatiles subsequent to the heat treatment step; and a remelting step for heating and remelting the volatiles subsequent to the pulverization step.