METHOD FOR RECOVERING VALUABLE METALS

Provided is a method for cost-effectively recovering valuable metals from waste lithium-ion batteries through a pyrometallurgical process. The present invention pertains to a method for recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S in which raw materials including waste lithium-ion batteries are subjected to an oxidation roasting treatment; and a reduction step S in which the obtained oxidation roasted product is reduced in the presence of carbon. In the oxidation roasting step S, calcium carbonate is charged into a furnace together with the raw materials including waste lithium-ion batteries to control the treatment temperature of the oxidation roasting treatment.