Separation method of copper-zinc sulphide minerals

A separation method and mineral technology, applied in the direction of solid separation, flotation, etc., can solve the problems of unsatisfactory flotation separation effect, large consumption of chemicals, and environmental damage, and achieve improved production conditions, less environmental pollution, and suppression ability strong effect

Inactive Publication Date: 2010-04-14
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Conventional chemicals such as zinc sulfate have poor selectivity and weak inhibitory ability, and the consumption of chemicals is large. The dosage of mineral agents per unit is as high as several kilograms. A large amount of chemic

Method used

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  • Separation method of copper-zinc sulphide minerals
  • Separation method of copper-zinc sulphide minerals

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0016] Example 1

[0017] This embodiment 1 provides a method for separating copper-zinc sulfide minerals. The method uses raw copper-zinc sulfide minerals as raw materials and preferentially flotation and separates the raw copper-zinc sulfide minerals to obtain copper concentrate minerals. The method includes :

[0018] Using the ore of copper-zinc sulfide minerals as raw materials, the crude copper-zinc sulfide minerals are separated and coarsely selected to obtain the crude copper concentrate minerals; during the separation and coarse-selection of copper-zinc sulfide minerals, water-soluble thioglycolate or sulfhydryl is added Acetic acid acts as an inhibitor of zinc sulfide minerals in the separated minerals;

[0019] Afterwards, the obtained copper crude concentrate minerals are selected and separated to obtain copper concentrate minerals. In the process of copper crude concentrate minerals beneficiation, water-soluble thioglycolate or thioglycolic acid is also added to the sep...

Example Embodiment

[0027] Example 2

[0028] This embodiment 2 provides a method for separating copper-zinc sulfide minerals. The method uses raw copper-zinc sulfide minerals as raw materials and preferentially flotation and separates the raw copper-zinc sulfide minerals to obtain copper concentrate minerals. The separation method given in Example 1 is basically the same, the difference is that in the flotation separation process of minerals, potassium thioglycolate is used as an inhibitor of zinc sulfide minerals in the separated minerals. The specific steps are as follows:

[0029] The grades of the copper-zinc ore used are Cu 0.61% and Zn 11.23%. The raw ore is added to the flotation tank for copper-zinc separation and coarse separation. During the separation and coarse separation, potassium thioglycolate is added as zinc sulfide in the separated minerals. The amount of inhibitor added is 500g / t, that is, 500g inhibitor is added to each ton of separated minerals, stirred for 5 minutes, and flotati...

Example Embodiment

[0032] Example 3

[0033] This embodiment 3 provides a method for separating copper-zinc sulfide minerals. The method uses the raw ore of copper-zinc sulfide minerals as raw materials to perform preferential flotation and separation of the raw ore of copper-zinc sulfide minerals to obtain copper concentrate minerals. The separation method given in Example 1 is basically the same, the difference is that in the flotation separation process of minerals, ammonium thioglycolate is used as the inhibitor of zinc sulfide minerals in the separated minerals. The specific steps are as follows:

[0034] The grades of the copper-zinc ore used are Cu 0.55% and Zn 4.98%. The raw ore is added to the flotation tank for copper-zinc separation and coarse separation. During the separation and coarse separation, ammonium thioglycolate is added as zinc sulfide in the separated minerals. The amount of inhibitor added is 260g / t, which means adding 260g inhibitor per ton of separated minerals, stirring for...

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Abstract

The invention discloses a separation method of copper-zinc sulphide minerals, which belongs to the technical field of mineral dressing. The separation method utilizes crude ore of the copper-zinc sulphide minerals as raw materials and includes steps of performing flotation separation for the crude ore of the copper-zinc sulphide minerals to obtain copper concentrates or obtain copper concentrates and zinc concentrates, and water-soluble thiol acetate or thioglycolic acid is added to be utilized as an inhibitor of zinc sulphide minerals in separation minerals. Because the water-soluble thiol acetate or thioglycolic acid which is utilized as the inhibitor of the copper-zinc sulphide minerals has advantages of fine selectivity, strong inhibition capacity, low usage, convenient adding and the like, the water-soluble thiol acetate or thioglycolic acid not only can inhibit the zinc sulphide minerals well, but also can achieve better flotation effect. Simultaneously, the water-soluble thiol acetate or thioglycolic acid is low in environment influence and does not pollute environments, thereby improving production conditions well and overcoming the shortage that high usage of common agent causes pollution and damages to the environment.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for separating copper-zinc sulfide minerals. Background technique [0002] At present, when the copper-zinc mixed concentrate obtained by flotation of copper-zinc mixed raw ore is separated from copper and zinc by zinc-inhibiting floating copper method, the flotation separation method is usually used, and conventional chemicals such as zinc sulfate are often added during the flotation separation process. As an inhibitor of zinc sulfide minerals. [0003] The shortcoming of above-mentioned prior art is: [0004] Conventional chemicals such as zinc sulfate have poor selectivity, weak inhibitory ability, and high consumption of chemicals. The dosage of the medicament is large, the concentration is high (generally 10%), and the operating separation efficiency is generally between 80% and 90%, so the flotation separation effect is not ideal. Contents of the inv...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/002B03D103/02B03D101/06
Inventor 魏明安王福良王荣生周兵仔
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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