Abstract:A certain copper mine in Anhui contains 0.45% copper, 27% sulfur, and a sulfur-copper ratio of 58. It belongs to a typical refractory high-sulfur copper mine. In order to develop the copper mine resources efficiently, process mineralogy and mineral processing test research have been carried out on it. BK308 is used as a new copper collector, and BK506 and lime are used as combined inhibitors. The copper preferential process is used to select sulfur. In the closed-circuit test, the copper concentrate contains 18.91% copper and 34.70% sulfur, and the copper recovery rate is 81.51%; the sulfur concentrate contains 49.05% sulfur and the sulfur recovery rate is 90.84%. The test indicators are good. The amount of lime is reduced from 6000g/t to 750g/t. Its application effectively avoids various drawbacks of a single lime inhibitor, eliminates the scaling phenomenon of equipment and pipelines, ensures production stability, and provides strong technical support for process optimization and comprehensive recovery of similar resources.