Abstract:The element that can be enriched and recovered in a ore in Inner Mongolia is copper, the content is 0.41%, the gangue minerals are mainly quartz, dolomite and siderite, a small amount of feldspar, chlorite, mica and so on. Copper mainly occurs in chalcopyrite, a small amount occurs in chalcochene, fahlerite, arsenofahlerite and copper blue, and trace amounts are distributed in other minerals in the form of isomorphism. According to the process mineralogy study, the differences in ore characteristics and mineral floatability were determined, and the beneficiation scheme was tested. Finally, the closed-circuit process test of "priority copper flotation + regrinding to improve the grade" was adopted, and qualified copper concentrate with Cu grade of 20.11% and recovery rate of 89.07% was obtained.