Abstract:The Dashan Concentrator is mainly copper-molybdenum sulfide ore. In order to further improve the copper and molybdenum recovery rate indicators, it fully utilizes resources. On the basis of small-scale laboratory tests, industrial tests were carried out on the Dashan Concentrator, and the industrial test products were analyzed. By adding an appropriate amount of collector BK404B during mixed flotation, adding an appropriate amount of water glass in one step of the selection operation, and selectively regrinding the foam of the 160m3 system sweeping II, the final industrial test 160m3 system copper recovery rate is 88.20% Compared with the normal production one month before the industrial test, the copper recovery rate has increased by 0.42%. The comprehensive recovery rate of molybdenum is 65.37%, which is 5.36 percentage points higher than the cumulative target of one month of normal production before the industrial test.