Beneficiation method for carbon-containing lead-zinc sulfide ore

A mineral processing method, carbon lead sulfide technology, applied in the direction of flotation, solid separation, etc., can solve the problem of difficult suppression of carbonaceous gangue minerals, achieve the effect of inhibiting carbon flotation, reducing carbon content, and improving mineral processing indicators

Active Publication Date: 2020-10-23
CENT SOUTH UNIV
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Problems solved by technology

[0004] Aiming at the technical problem of "carbonaceous gangue minerals are difficult to suppress during flotation of lead-zinc sulfide ore" in the prior art, the purpose of the pres

Method used

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  • Beneficiation method for carbon-containing lead-zinc sulfide ore
  • Beneficiation method for carbon-containing lead-zinc sulfide ore
  • Beneficiation method for carbon-containing lead-zinc sulfide ore

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Embodiment 1-3

[0034] A carbon-bearing lead-zinc mine in Inner Mongolia is used, in which the main metal minerals are sphalerite, galena and pyrite, in which the grade of zinc is 5.28%, the grade of lead is 2.23%, and the grade of iron is 8.3%. The rest of the metal minerals are low in content. Gangue minerals are mainly dolomite, calcite and organic carbon. The carbon content in the ore reaches 4.75%. The nature of the ore is complex, the symbiotic relationship between lead and zinc is close, the useful minerals lead, zinc and carbon are closely related, and the ore contains a large amount of organic carbon. These carbons have good floatability. If lead and zinc are directly flotationd during the flotation process, the carbon will inevitably enter the lead concentrate and zinc concentrate and affect the concentrate grade. Therefore, the key to solving this ore flotation lies in effective Separation of galena, sphalerite and organic carbon.

[0035] A kind of mineral processing method of ...

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Abstract

The invention discloses a beneficiation method for carbon-containing lead-zinc sulfide ore, which belongs to the technical field of beneficiation. The method comprises the following steps: (1) grinding raw ore to obtain ore pulp with preset fineness; (2) adding a carbon inhibitor into the ore pulp subjected to ore grinding, and uniformly stirring to obtain ore pulp subjected to pulp mixing; (3) adding a collecting agent and a foaming agent into the pulp obtained after pulp mixing for lead flotation to obtain lead concentrate and lead flotation tailings; and (4) adding a carbon inhibitor into the lead flotation tailings, and carrying out zinc flotation to obtain zinc concentrate and tailings. According to the beneficiation method for the carbon-containing lead-zinc sulfide ore, the adoptedinhibitor has a high-selectivity inhibition effect, carbon-containing impurities can be efficiently selected and inhibited in lead and zinc sulfide flotation, and efficient enrichment and recovery oflead and zinc sulfide are conveniently achieved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing and relates to a mineral processing method of carbon-containing lead-zinc sulfide ore. Background technique [0002] Lead-zinc sulfide ore contains various metals such as lead, zinc, copper, silver, sulfur and tin. The ore reserves of this mine are large, mainly concentrated in Yunnan, Inner Mongolia, Gansu, Guangdong, Hunan and Guangxi. Its economic value is high, but the mineral The intercalated particle size is fine, and the carbonaceous content in the gangue is high, which is a refractory ore. [0003] The purpose of flotation is to separate useful minerals from gangue minerals, especially to selectively separate target minerals. In some carbonaceous gangue-type lead-zinc sulfide deposits, there are some carbonaceous with low density and strong natural buoyancy, which will enter the foam layer during the flotation process and affect the concentrate grade. In addition, these carbon...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03D1/00B03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02
Inventor 刘润清王长涛孙伟谢菲菲荆念文
Owner CENT SOUTH UNIV
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