METHOD FOR RECOVERING VALUABLE METALS

WIPO Patent Application WO/2020/203937

A1

The purpose of the present invention is to inexpensively and efficiently recover valuable metals such as Co or Ni from a recovery product containing Al2O3, CoOX, or NiOX.　In a method for recovering valuable metals according to the present invention, used secondary batteries are subjected to heating, pulverizing, sieving, and magnetic separation to obtain a recovery product containing valuable metals, and a mixture of the obtained recovery product and a reducing agent is heated to reduce valuable metals in the mixture into a molten metal state, thereby separating the mixture into metals and oxides. When separating and recovering the metals from the oxides after cooling, the heating temperature of the mixture is set to 1400°C or higher. When the reducing agent is mixed with the recovery product, the reducing agent is mixed with the recovery product such that 0