Flotation method for lead-zinc ore by using inhibitor

Abstract

The invention discloses a flotation method for lead-zinc ore by using an inhibitor. The method comprises the following steps that step 100, grinding and crushing the metal ore and adding a pH value regulator, so that an ore pulp is kept alkaline; step 200, stirring the ore pulp by utilizing a rod-shaped rotor, an ore pulp dispersing agent and a lead ore collecting agent are added in the stirring process by a drip method, and the ore pulp is kept inflated and heated; step 300, a flash zinc ore inhibitor and a white lead ore activator are added into the ore pulp, an auxiliary foaming agent and awhite lead ore collecting agent are added while the ore pulp is stirred; step 400, adding a flash zinc ore vulcanizing activator into the ore pulp, meanwhile, adding an organic compound collecting agent, finally, the flash-zinc ore in the ore pulp is floated out; step 500, the square-lead ore, the white lead ore and the heteropole ore obtained by the flotation method are subjected to multistage concentration treatment; a stirrer and an air inflation combination mode are adopted, the ore pulp is stably heated, the flotation rate is increased, the ore sorting difficulty is reduced, the qualityof the concentrate is guaranteed, and stable heat energy is provided for the ore pulp.

Description

technical field [0001] The invention relates to the technical field of flotation of lead-zinc ore, in particular to a method for flotation of lead-zinc ore using an inhibitor. Background technique [0002] Lead and zinc are one of the earliest metals extracted by humans from lead and zinc ores. Lead and zinc are widely used in electrical industry, machinery industry, military industry, metallurgical industry, chemical industry, light industry and pharmaceutical industry and other fields. In addition, lead metal also has many uses in nuclear industry, petroleum industry and other departments. There are 11 kinds of lead minerals and 6 kinds of zinc minerals in lead-zinc mines, among which galena and sphalerite are the most important. The chemical formula of galena is PbS, the crystal structure is an equiaxed crystal system, the sulfide ions are cubically most closely packed, and the lead ions are filled in all the octahedral voids. The chemical formula of sphalerite is ZnS,...

AI Technical Summary

Problems solved by technology

[0005] (1) The flotation reaction is usually carried out at room temperature, resulting in slow flotation efficiency and seriously affecting the production efficiency of lead-zinc ore;

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