The invention discloses a flotation
separation method for
refractory sulfide ore and high-
sulfur copper-
zinc ore. The method comprises the following steps: performing first-stage ore
grinding on a raw ore and then performing first-stage flotation on the raw ore, wherein the raw ore after being subjected to the first-stage ore
grinding meets the demand that more than 90% of ore
fineness is less than 200 meshes; adopting the processes of once rough flotation, once fine flotation and once
scavenging; performing second-stage ore
grinding on the ore after being subjected to the first-stage flotation, wherein
tailings of the first-stage flotation are
sulfur concentrates; performing second-stage flotation on the ore which is subject to the second-stage ore grinding and meets the demand that more than 90% of ore
fineness is less than 400 meshes; performing
copper-
zinc separation flotation; adopting the processes of once rough flotation, triple fine flotation and once
scavenging; adding C6MT
sodium phosphate as a modifier and separating
copper concentrates from the
tailings; performing third-stage flotation on the
tailings; and adopting the processes of once rough flotation, triple fine flotation and twice
scavenging, thereby separating
zinc concentrates from the
sulfur concentrates. The method provided by the invention has the advantages of reasonable process, saved investment and low cost. By using the method, the flotation precision of copper-zinc ore is increased, the
recovery rate of copper and zinc concentrates is increased, the national mine resource is furthest recovered, utilized and protected, and the national technical level of separating copper-zinc ore is promoted.