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A kind of beneficiation method of carbon-containing lead-zinc sulfide ore

A beneficiation method, lead carbon sulfide technology, applied in flotation, solid separation, etc., can solve the problem of difficult suppression of carbonaceous gangue minerals, and achieve the effect of reducing the consumption of collectors

Active Publication Date: 2021-07-09
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 present invention is to provide a beneficiation method for lead-zinc sulfide ore containing carbon to realize the production of lead-zinc sulfide ore Separation from carbonaceous gangue

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  • A kind of beneficiation method of carbon-containing lead-zinc sulfide ore
  • A kind of beneficiation method of carbon-containing lead-zinc sulfide ore
  • A kind of beneficiation method of 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 mineral processing method of carbon-containing lead-zinc sulfide ore, belonging to the technical field of mineral processing, comprising the following steps: (1) grinding raw ore to obtain a predetermined fineness of pulp; (2) adding the mineral pulp to the ground pulp Add carbon inhibitor, stir evenly, obtain the ore pulp after pulping; (3) add collector, foaming agent to carry out lead flotation in the pulp after pulping, obtain lead concentrate and lead flotation tailings; ( 4) Add carbon inhibitor to lead flotation tailings, carry out zinc flotation, and obtain zinc concentrate and tailings. The invention provides a mineral processing method of carbon-containing lead-zinc sulfide ore. The inhibitor used has a highly selective inhibitory effect, and can efficiently select and suppress carbon-containing impurities in the flotation of lead sulfide and zinc, so as to facilitate the efficient enrichment of lead sulfide and zinc. collection recycling.

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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Patent Type & Authority Patents(China)
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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