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Beneficiation process of lead-zinc-silver ore and flotation reagent thereof

A technology of silver ore, lead and zinc, applied in flotation, solid separation, chemical instruments and methods, etc., can solve the problems of high cost of beneficiation process, consumption of flotation reagents, difficult beneficiation, etc. The effect of good effect and improved recovery rate

Active Publication Date: 2016-11-09
西藏金和矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the high degree of oxidation of the raw ore in some existing lead-zinc-silver mines, there are problems of high difficulty in beneficiation and high cost of beneficiation process
In this case, not only a large amount of flotation reagents need to be consumed, but also the phenomenon of trough running is prone to occur, and the flotation effect is poor, especially sphalerite is difficult to flotation, and the zinc recovery rate is only 0-20%

Method used

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  • Beneficiation process of lead-zinc-silver ore and flotation reagent thereof

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Effect test

Embodiment 1

[0055] A kind of beneficiation process of lead-zinc-silver ore provided by the present invention, the grinding fineness of raw ore in ore grinding operation is -200 mesh and accounts for 51%; The step of zinc roughing is carried out on the raw ore after lead roughing, and the step of adding diesel oil is included before zinc roughing.

[0056] (1) For rough lead selection, 1kg / t of lime, 100g / t of zinc sulfate, 2g / t of ammonium butyl ammonium black powder, 50g / t of sulfur nitrogen No. 9, and 50g / t of diesel oil are input per ton of raw ore;

[0057] (2) For zinc roughing, 1kg / t of lime, 100g / t of copper sulfate, 10g / t of butyl xanthate, and 50g / t of diesel oil are input per ton of raw ore.

Embodiment 2

[0059] A kind of beneficiation process of lead-zinc-silver ore provided by the present invention, the grinding fineness of raw ore in ore grinding operation is -200 mesh and accounts for 52%; The step of zinc roughing is carried out on the raw ore after lead roughing, and the step of adding diesel oil is included before zinc roughing.

[0060] (1) For rough lead selection, 5kg / t of lime, 500g / t of zinc sulfate, 10g / t of ammonium butyl ammonium black drug, 200g / t of sulfur nitrogen No. 9, and 200g / t of diesel oil are input per ton of raw ore;

[0061] (2) For zinc roughing, 5kg / t of lime, 500g / t of copper sulfate, 40g / t of butyl xanthate, and 200g / t of diesel oil should be input per ton of raw ore.

Embodiment 3

[0063] A kind of beneficiation process of lead-zinc-silver ore provided by the present invention, the grinding fineness of raw ore in ore grinding operation is -200 mesh and accounts for 53%; The step of zinc roughing is carried out on the raw ore after lead roughing, and the step of adding diesel oil is included before zinc roughing.

[0064] (1) For rough lead selection, 3kg / t of lime, 300g / t of zinc sulfate, 8g / t of butyl ammonium black drug, 100g / t of sulfur nitrogen No. 9, and 100g / t of diesel oil are input per ton of raw ore;

[0065] (2) For zinc roughing, 3kg / t of lime, 300g / t of copper sulfate, 30g / t of butyl xanthate, and 100g / t of diesel oil should be input per ton of raw ore.

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Abstract

The invention provides a beneficiation process of a lead-zinc-silver ore. The ore grinding fineness of a raw ore in the ore grinding operation is 50-60% of -200 meshes; the lead roughing in the lead selection operation is firstly performed for the raw ore after ball milling; a diesel adding step is added before the lead roughing; the zinc roughing in the zinc selection operation is performed for the raw ore after the lead selection operation; and a diesel adding step is added before the zinc roughing. The beneficiation process of the lead-zinc-silver ore eliminates pyrite inhibitor sodium sulfite in a traditional flotation reagent, reduces the cost, facilitates increment of the lead, zinc and silver yields, prevents bad groove deflection phenomenon in the flotation process when the oxidation degree of the lead-zinc-silver ore is higher, and is high in capturing capacity of a sphalerite by diesel.

Description

technical field [0001] The invention relates to a beneficiation process and a flotation agent thereof, in particular to an ore dressing process of a lead-zinc-silver ore and a flotation agent thereof. Background technique [0002] Mineral dressing is the most important link in the entire mineral production, and it is a key department in mining enterprises. Generally, large-scale mining enterprises are resource-based enterprises that comprehensively mine, dress and smelt. The process of separating useful minerals from useless minerals (usually called gangue) or harmful minerals in mineral raw materials by physical or chemical methods, or separating a variety of useful minerals is called beneficiation, also known as "mineral processing". Among the products, those enriched in useful components are called concentrates; those enriched in useless components are called tailings; those whose content of useful components is between the concentrate and tailings are called middle ores...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/002B03D1/006B03D1/018
CPCB03B7/00B03D1/002B03D1/006B03D1/018B03D2203/02
Inventor 何任义陈明星王阳成
Owner 西藏金和矿业有限公司
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