Process of copper fire refining is the initial stage in the processing of copper-containing raw materials (blister copper and copper scrap) and is carried out in the copper smelting department in two furnaces: MAERZ with a capacity of 125 thousand tons of anode copper per year and AN-1 with a capacity of 45 thousand tons of anode copper per year. Casting of copper is carried out at the M-24 of WENMEC SYSTEMS (Sweden) and M-15 OUTOKUMPU (Finland) carousel type casting units with weight dosing.
Along with the anodes, the department produces copper powder – a raw material for the production of copper sulfate. Scrap copper is melted in a small reverberatory kiln, then a stream of copper is sprayed with high pressure water.
There is a certification and primary processing of scrap containing precious metals (electronic scrap, catalysts, jewelry industry waste, etc.) organized at a separate section of the copper smelting department.