China Nonferrous Metallurgy

The pyrometallurgical smelting process of copper sulfide ore is usually separated into concentrate smelting, copper matte converting and crude copper refining, among which smelting and converting can be further divided into suspension smelting and bath smelting according to process method. In recent years, bath smelting technologies have developed rapidly. This paper expounds on the development status, existing problems, solutions and schemes of oxygen-enriched bottom-blowing smelting, oxygen-enriched side-blowing smelting, bottom-blowing continuous converting and multi-lance top-blowing continuous converting in bath smelting. In particular, the prospects of various combination of continuous copper smelting processes are analyzed, continuous copper smelting technology and short process flow are the development trends of copper smelting in the future is pointed out.