Method for producing reduced metal and slag containing oxidized nonferrous metal using an upgraded coal

A method for producing a slag containing an oxidized nonferrous metal using upgraded coal for metallurgy, which is produced by extracting coal with an organic solvent, the method comprising:

• upgrading the coal by heating in the organic solvent to produce upgraded coal for metallurgy which has higher thermal plasticity than that of the coal;
• mixing the upgraded coal for metallurgy and a metal oxide-containing raw material containing iron oxide and an oxidized nonferrous metal to prepare a mixture;
• reducing the iron oxide in the mixture by heating the mixture in a furnace to produce a reduced mixture containing metallic iron, and then melting the metallic iron by heating the reduced mixture to separate between the metallic iron and an oxidized nonferrous metal slag;
• solidifying the metallic iron in the mixture containing the oxidized nonferrous metal slag and the melted metallic iron by cooling in the furnace to produce a reduced solid;
• and
• discharging the reduced solid to the outside of the furnace to separate between the metal and the slag and recover the slag as the oxidized nonferrous metal slag.