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Combined inhibitor used for lead concentrate flotation process

A combined inhibitor and lead concentrate technology, applied in flotation, solid separation, wet separation, etc., can solve the problems of inability to use directly, lead smelting, and Zn resources are not used, and achieve good inhibition effect and reduce zinc Content, effect without risk of loss of valuable metals

Inactive Publication Date: 2017-11-24
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is that due to the high zinc content in some lead concentrates, Zn>5%, or even>6%, such raw materials cannot be directly used for lead smelting; and after mixing with low Zn lead concentrates Lead smelting, Zn resources are still not utilized in the smelting process

Method used

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  • Combined inhibitor used for lead concentrate flotation process
  • Combined inhibitor used for lead concentrate flotation process
  • Combined inhibitor used for lead concentrate flotation process

Examples

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Embodiment

[0043] The raw ore of the lead concentrate processed in this embodiment is a lead-zinc-silver polymetallic mine in Zhalantun, Inner Mongolia. The lead concentrate captured by flotation under the dixanthate collector system contains 9.61% Zn in the concentrate. Containing Pb is 45.91%. The main components are as follows: (in this application, unless otherwise specified, each percentage is a mass percentage)

[0044] Table 1 Analysis results of main chemical elements of flotation lead concentrate

[0045] element

Pb

Zn

Ag

S

Fe

content / %

45.91

9.61

3215g / t

20.52

15.25

[0046] For the above-mentioned lead concentrate, the technological process used in this embodiment is as follows figure 1 As shown, the specific steps are as follows:

[0047] (1) Shaking table gravity separation is carried out to the ore, and the pulp concentration (the ratio of dry ore weight to water) of the feeding ore reselected by the shaking table is ...

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Abstract

The invention discloses a combined inhibitor used for a lead concentrate flotation process. The combined inhibitor used for the lead concentrate flotation process comprises, by mass, 2-4 parts of zinc sulfate, 2-4 parts of dimeric sodium cyanate, 0.5-1.5 parts of double mercapto sodium acetate and 0.5-1.5 parts of thiourea. The combined inhibitor used for the lead concentrate flotation process has a good inhibiting effect to zinc, and is used for the flotation process of zinc inhibiting and plumbum floating, and zinc content in the lead concentrate can be reduced sharply.

Description

technical field [0001] The invention relates to a combined inhibitor used in the flotation process of lead concentrate and belongs to the technical field of lead-zinc ore beneficiation. Background technique [0002] Flotation lead concentrate is the main raw material of lead metal. In the world, lead concentrate is mainly smelted by fire method. Zinc will condense on the furnace wall to form furnace knots in the process of fire method lead smelting, which will increase lead in high iron slag. At the same time, the incorporation of Zn will make the lead metal harder and more prone to corrosion. [0003] At present, for the lead concentrate with high Zn content, a large amount of low-Zn lead concentrate is mainly used to mix with it before smelting. Although this method can reduce the Zn content in the lead concentrate of the pyrometallurgy raw material, the Zn resource is still being used. Lost in the lead smelting process. At the same time, due to factors such as low raw m...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03B9/00B03B5/04B04C9/00B03D101/06B03D103/04
CPCB03D1/018B03B5/04B03B9/00B03D2201/06B03D2203/04B04C9/00
Inventor 骆任魏党生叶从新韦华祖蒋素芳朱永筠欧阳华
Owner HUNAN RES INST FOR NONFERROUS METALS
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