Abstract: The converter slag from copper smelting is important secondary metal resources, which are mainly recovered by the flotation.Because of its complex nature, and especially with the development of copper smelting technology, copper sulfide becomes less and copper oxide is more.Coupled with cooling method of converter slag and other factors, the converter slag becomes more complicated in nature and difficult to separate.Research on the process mineralogy of converter slag provides a scientific basis to promote beneficiation process, thus the indicators in beneficiation are improved.

Key words: Converter slag, Process mineralogy, Beneficiation process