Separation method of lead-zinc sulphide minerals

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

Method used

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

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Experimental program
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Effect test

Embodiment 1

[0017] This embodiment 1 provides a method for separating lead-zinc sulfide minerals, which uses the raw ore of lead-zinc sulfide minerals as raw material, and performs preferential flotation separation on the raw ore of lead-zinc sulfide minerals to obtain lead concentrate minerals. The method includes :

[0018] Using the raw ore of lead-zinc sulfide minerals as raw material, separate and roughen the raw ore of lead-zinc sulfide minerals to obtain lead rough concentrate minerals; in the process of separating and roughing the raw ore of lead-zinc sulfide minerals, add water-soluble thioglycolate or mercapto Acetic acid as an inhibitor of zinc sulfide minerals in the separated minerals;

[0019] Afterwards, the obtained lead coarse concentrate minerals are refined and separated to obtain lead concentrate minerals. In the process of refining lead concentrate minerals, water-soluble thioglycolate or thioglycolic acid is also added as Inhibitors of zinc sulfide minerals.

[002...

Embodiment 2

[0028] Present embodiment 2 provides a kind of separation method of lead-zinc sulfide mineral, is to be raw material with the raw ore of lead-zinc sulfide mineral, the raw ore of this lead-zinc sulfide mineral is carried out preferential flotation separation to obtain the method for lead concentrate mineral, this method and The separation method that embodiment 1 provides is basically the same, and the difference is that in the flotation separation process to minerals, potassium thioglycolate is used as the inhibitor to zinc sulfide minerals in the separated minerals, and the specific steps are as follows:

[0029] The raw ore grade of the lead-zinc ore used is Pb 3.42%, Zn 11.24%. The raw ore is added to the flotation tank for lead-zinc separation and roughing operation. During the separation and roughing process, potassium thioglycolate is added as the zinc sulfide mineral in the separated minerals Inhibitor, the amount of inhibitor added is 1000g / t, that is, 1000g inhibitor ...

Embodiment 3

[0033] Present embodiment 3 provides a kind of separation method of lead-zinc sulfide mineral, is to be raw material with the raw ore of lead-zinc sulfide mineral, carries out preferential flotation separation to the raw ore of this lead-zinc sulfide mineral and obtains the method for lead concentrate mineral, this method and The separation method that embodiment 1 provides is basically the same, and the difference is that in the flotation separation process to minerals, ammonium thioglycolate is used as the inhibitor to zinc sulfide minerals in the separated minerals, and the specific steps are as follows:

[0034] The raw ore grade of the lead-zinc ore used is Pb 3.61%, Zn 2.93%, and the raw ore is added to the flotation tank for lead-zinc separation and roughing operation. During the separation and roughing process, ammonium thioglycolate is added as the zinc sulfide mineral in the separated minerals Inhibitor, the amount of inhibitor added is 510g / t, that is, 510g inhibitor...

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Abstract

The invention discloses a separation method of lead-zinc sulphide minerals, which belongs to the technical field of mineral dressing. The separation method utilizes crude ore of the lead-zinc sulphide minerals as raw materials and includes steps of performing flotation separation for the crude ore of the lead-zinc sulphide minerals to obtain lead concentrates or obtain lead concentrates and zinc concentrates, and water-soluble thiol acetate or thioglycolic acid is added to be utilized as an inhibitor of the zinc sulphide minerals in separation minerals. Because the water-soluble thiol acetate or thioglycolic acid which is utilized as the inhibitor of the lead-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 common agent usage pollutes and damages the environment.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for separating lead-zinc sulfide minerals. Background technique [0002] At present, when the lead-zinc mixed concentrate obtained by the flotation of the lead-zinc mixed raw ore is separated from the lead and zinc by the method of zinc suppression and flotation, 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 ...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/012B03D1/08B03D103/02B03D101/06
Inventor 王福良魏明安周兵仔王荣生周少珍
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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