Abstract:Taking Wushan Copper Mine as the research object, grinding and flotation tests were performed using metal balls and alumina grinding balls. The results show that at a grinding fineness of -0.074mm, 90%, alumina grinding balls and metal balls compared with the same grinding performance, the former grinding product is lighter when being crushed. The segmental semi-theoretical formula was used to calculate the appropriate size of the porcelain high alumina ball milling media: Φ30mm and Φ15mm, and the ratio was 4:1. With MA-1 + Mos-2 as the combined agent, the pulp was subjected to one roughing, two sweeps, and two selected copper flotations under the condition of pH = 12.0. The copper concentrate grade was 23.26%, and the copper recovery rate was 95.31%. , copper recovery increased by 1.12%.