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Three-sulfide zinc inhibition benefication production method for lead zinc ore

A production method and technology of lead-zinc ore, applied in flotation, solid separation, etc., can solve problems such as sulfite failure and time-limited inhibition, and achieve the goal of improving lead-zinc recovery rate, reducing production cost, and reducing consumption Effect

Inactive Publication Date: 2018-03-09
HUNAN SHUI KOU SHAN NONFERROUS METALS GRP
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  • Application Information

AI Technical Summary

Problems solved by technology

However, since sulfite is prone to failure in the pulp, the inhibitory effect is time-limited

Method used

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  • Three-sulfide zinc inhibition benefication production method for lead zinc ore

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Experimental program
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Embodiment Construction

[0029] refer to figure 1 , a kind of lead-zinc ore suppression zinc mineral processing production method, with lead-zinc ore as raw ore, comprises the following steps successively:

[0030] (1) Stir, make raw ore into slurry, stir in a mixing tank, add collector, zinc inhibitor and lime water;

[0031] (2) Lead roughing, preliminary sorting of ore pulp to obtain crude lead concentrate;

[0032] (3) One-time lead refining, which concentrates the crude lead concentrate obtained after roughing;

[0033] (4) Secondary lead beneficiation, which concentrates the lead concentrate obtained from the first lead beneficiation;

[0034] (5) One-time lead sweeping to recover useful components from the tailings of lead roughing;

[0035] (6) Secondary lead sweeping, recovering useful components from the tailings of the first lead sweeping;

[0036] The zinc inhibitors include sodium sulfide, zinc sulfate and sodium metabisulfite.

[0037] The ratio of the zinc inhibitor is as follows: ...

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PUM

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Abstract

The invention discloses a zinc inhibition benefication production method for lead zinc ore. According to the method, the lead zinc ore is utilized as raw ore. The method sequentially comprises the following steps: (1) stirring: preparing the raw ore into ore pulp, stirring in a stirring barrel and adding a collecting agent, a zinc inhibitor and lime water; (2) rough lead concentration; (3) primaryfine lead concentration; (4) secondary fine lead concentration; (5) primary lead scavenging; (6) secondary lead scavenging; wherein the zinc inhibitor is prepared from sodium sulfide, zinc sulfate and sodium pyrosulfite. According to the zinc inhibition benefication production method disclosed by the invention, three kinds of chemicals of the zinc sulfide, the zinc sulfate and the sodium porysulfide which have the advantages of wide source, low price and small effects on the environment are combined to serve as the inhibitor, so that a zinc content in lead concentrate can be obviously reduced, and a lead and zinc recovery rate is improved; no toxin substance is generated, and consumption of other chemicals can be reduced a lot at the same time; not only is production cost reduced, but also technical indexes can reach the standard.

Description

technical field [0001] The invention relates to the technical field of mineral flotation, in particular to a zinc-suppressed ore dressing production method. Background technique [0002] In the flotation process of the lead area, there are three reasons why the inhibitor that inhibits the flotation of zinc works: one is to make the zinc mineral hydrophilic and not float, the other is a deactivator of the zinc mineral; the third is Zinc precipitates are formed directly. [0003] The three commonly used inhibitors or combinations of inhibitors for the selection of lead areas to inhibit the flotation of zinc are: [0004] 1. The scheme of zinc sulfate and lime as inhibitors: zinc sulfate will ionize Zn in the solution 2+ and SO 4 2- , Zn 2 + Hydrolysis produces Zn(OH) 2+ , in alkaline medium, to get HZnO - and ZnO 2 2- , they adsorb on the mineral surface and enhance the hydrophilicity of the mineral surface. Suppresses the floating of zinc. Although this solution c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/002B03B9/00B03D101/06B03D103/04
CPCB03D1/00B03B9/00B03D1/002B03D2201/06B03D2203/04
Inventor 聂正才李洪
Owner HUNAN SHUI KOU SHAN NONFERROUS METALS GRP