At present, more than 80% of copper in the world is made by fire method, and it is mainly used to process copper sulfide ore. Pyrometallurgy is to melt copper ore (or calcine, agglomerate, etc.) and flux at high temperature, or directly smelt into blister copper, or first smelt into matte (melt mainly composed of copper, iron and sulfur) Then smelt into blister copper. Except for some operations (such as electrolytic refining), this method is carried out at high temperatures. Pyrometallurgical copper can be carried out in a variety of equipment, such as blast furnaces, reverberatory furnaces, electric furnaces, flash furnaces and continuous copper smelting furnaces. The matte smelted by various equipment is then subjected to blowing, fire refining and electrolytic refining to obtain electric copper.

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