Abstract:The cobalt-rich and nickel-low matte produced by a company is an artificial metal sulfide ore.The ore is rich in valuable metals such as nickel, copper and cobalt.According to the mineral characteristics of the ore, the beneficiation test was carried out by using the technological flowsheet of one-stage grinding + one roughing-five cleaning-two scavenging. On the condition of ore grinding fineness was 96% passing 53μm, and the inhibitor NaOH adjusts the pH value of the slurry to 12.5-12.6, the amount of the collecting and foaming agent S11016 is 110g/t, we can obtain a closed circuit flotation index that the high-grade copper concentrate contains 62.98% copper and 5.06% nickel, the nickel concentrate contains 42.65% nickel and 5.66% copper. Cobalt is enriched in nickel concentrate, and the recovery rate is 97.00%. The mineral processing technology achieves better flotation separation of copper and nickel-cobalt in cobalt-rich and low-nickel matte ore.