OPERATION METHOD OF COPPER SMELTING

摘要

In copper smelting, copper sulfide ore is smelted in a flash furnace, and a converter, and is refined in an anode furnace. The anode is electrolytically refined. Precious group metal (PGM), such as Pt and Pd are separated from the copper and concentrated in the sludge of the electrolytic process. Powder or granular material containing PGM is conventionally recycled in the copper smelting process such that the recycling material is charged into the flash furnace together with the copper ore and the flux. The recovery ratio is enhanced by means of blowing the recycling material into the converter or the anode furnace through a tuyere(s).