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Floatation process of complex lead zinc ores

A lead-zinc ore and flotation technology, applied in flotation, solid separation, etc., can solve the problems of heavy acidity, high sulfur content, high carbon content, etc., and achieve the effect of reducing the circulation volume of medium ore, reducing circulation volume, and low cost

Inactive Publication Date: 2009-12-16
何任义 +2
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: for the flotation separation problem of high carbon content and high sulfur content in the raw ore of complex lead-zinc ore, heavy acidity after spontaneous combustion of the ore, large amount of primary slime, and fine particles embedded in lead-zinc metal minerals, To provide a flotation process for complex lead-zinc ores that is economical, applicable, with good separation effect and high recovery index

Method used

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  • Floatation process of complex lead zinc ores
  • Floatation process of complex lead zinc ores
  • Floatation process of complex lead zinc ores

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Embodiment Construction

[0047] In order to describe the present invention in detail, the present invention will be further described in detail below in conjunction with the beneficiation process and accompanying drawings of the Duda lead-zinc ore in the Duda area of ​​Pakistan.

[0048] Basic situation of Duda ore

[0049] In the ore of Duda lead-zinc ore, the main metal minerals are galena, white plumbite, sphalerite, smithsonite, marcasite, pyrite, chalcopyrite, copper blue, tetrahedrite, silver tetrahedrite ore, etc.; gangue minerals include carbonaceous shale, organic carbon, quartz, feldspar, calcite, chlorite, apatite, and barite.

[0050] That is to say, in addition to iron sulfide minerals, lead and zinc and other metal minerals, the surrounding rocks are mainly carbonaceous shale and organic carbon.

[0051] (1) Mineral composition and content

[0052]

[0053]

[0054] (2) The structure of the ore

[0055] The structure of the ore mainly includes euhedral, semi-euhedral crystal str...

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Abstract

The invention relates to a floatation process of complex lead zinc ores, which uses the following process flows: ore grinding-floatation of lead in a lead flotation area-floatation of zinc in a zinc / sulfur mixed flotation area-floatation of zinc in a zinc middling re-flotation area; the invention uses floatable process like lead zinc full-opening, effectively removes carbon and iron sulfide with good floatability by means of entire processes of the lead area, reduces influence of carbon and iron sulfide with good floatability on the flotation of zinc, avoids lime from entering rougher flotation and scavenging of primary processes and enables refining of zinc to be blank refining to thereby greatly reduce vicious circle of a large amount of middling, and a collecting agent is not added to the separation of zinc from sulfur in re-flotation of zinc middling.

Description

technical field [0001] The invention relates to the field of mineral flotation, in particular to a flotation process for complex lead-zinc ores. The complex lead-zinc ores referred to in the present invention are lead-zinc ores in which extremely fine particles of high carbon, high sulfur and high mud have been embedded and spontaneously ignited. Background technique [0002] Most of the lead-zinc mines are polymetallic sulfide ores, generally there are ores with galena, sphalerite and pyrite as the main target minerals, such as Guangdong Fankou lead-zinc mine, Qinghai Xitieshan lead-zinc mine: another One is the ore with galena, sphalerite and pyrrhotite as the main target minerals, such as the lead-zinc mine in the mining area in southern Yunnan; Except for sphalerite, smithsonite, and marcasite minerals, the surrounding rocks are mainly carbonaceous shale and organic carbon ores, which belong to lead-zinc ores with high carbon, high sulfur, and high mud intercalated with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D103/04
Inventor 何任义晏国福汤之铭
Owner 何任义
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