Abstract:In the copper smelting process, the original copper sulfide concentrate will contain various metal elements that are harmful to the environment. Therefore, during the smelting process, it is necessary to control the smelting process to extract or control the discharge of these metal elements to achieve recovery and environment protection. Among them, metallic cadmium is one of the nonferrous metals that are more widely present in the copper smelting process. By analyzing the distribution of metallic cadmium in different smelting processes, appropriate control processes can be adopted to extract it, so as to realize the effective recovery and emission control of metal cadmium.