2results about How to "Reduce mutual inclusion" patented technology

The application discloses a galena combined inhibitor and a use method thereof, and the combined inhibitor comprises iron sulfate, sodium nitrate and jarosite, and the mass ratio of the amount of the iron sulfate, the sodium nitrate and the jarosite is 20:(4-10):(1-2). The combined inhibitor can be applied to separation of copper-lead mixed concentrate to realize lead inhibition and copper floating, and the combined inhibitor does not need to be removed. In an acid medium, after the combined inhibitor acts, not only can the combined inhibitor decompose the adsorbed reagent on the surface of the copper-lead mixed concentrate, but also can promote the galena surface to be oxidized to generate hydrophilic PbSO4 and PbO, while the chalcopyrite surface is oxidized to generate hydrophobic elemental sulfur (S 0 ), thereby expanding the floatability difference between the copper-lead sulfide, the jarosite is selectively adsorbed on the surface of the galena, further reducing floatability of the lead, and improving the copper-lead separation efficiency. The copper concentrate and the lead concentrate obtained by the application have high recovery rates, low mutual content, reusable acid liquid, low cost and environmental protection.

The invention provides a composite inhibitor and application thereof in flotation of lead-zinc sulfide ore, and relates to the technical field of ore dressing. The composite inhibitor is obtained by mixing carbonates and sulfates according to an equal proportion, and when the composite inhibitor is applied, firstly, lead-zinc sulfide ore is crushed and levigated until-0.074 mm accounts for about 60%, then ore pulp is subjected to lead-sulfur flotation, tailings are further scavenged, finally, concentrate is subjected to lead flotation, lead concentrate is obtained, the tailings are subjected to zinc flotation, and zinc concentrate is obtained. The inhibition effect of the prepared inhibitor on sphalerite is remarkably higher than that of a traditional inhibitor, the problem that lead and zinc are mutually contained in lead-zinc flotation is remarkably solved, and the lead-zinc separation efficiency is improved. The problems that in the prior art, high-alkalinity wastewater treatment is difficult, an inhibitor is unfavorable for precious metal recovery, hydrogen sulfide gas is harmful to the environment and operators, and operation is complex are solved.