Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore

A combination rate and carbonate technology, applied in the field of beneficiation and metallurgy, can solve the problem of not being able to solve the problem of recycling and utilization of oxygen-sulfur mixed copper ore at the same time, and no breakthrough has been achieved, so as to reduce sulfuric acid consumption, reduce carbon dioxide emissions, and reduce leaching costs. Effect

Active Publication Date: 2010-09-15
YUNNAN TIEFENG MINING CHEM NEW TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, the current method of beneficiation first followed by metallurgy or first metallurgy and then beneficiation cannot solve the recycling problem of oxygen-sulfur mixed copper ore with high binding rate and high calcium and magnesium content at the same time, resulting in oxygen-sulfur mixed copper ore, especially high binding The problem of beneficiation and smelting of high-rate, high-carbonate gangue-type oxygen-sulfur mixed copper ore resources has not been broken through

Method used

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  • Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore

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Effect test

Embodiment 1

[0037] Oxy-sulfur mixed copper ore containing 0.7%-1.1% copper, 40%-50% oxidation rate, 20%-25% binding rate, and 10%-20% calcium oxide and magnesium content. (both are mass percentages, the same below)

[0038] 1. Flotation of copper sulfide minerals and free copper oxide minerals:

[0039] Grinding until 80% of the copper sulfide minerals and free copper oxide minerals are dissociated, add 500g / t sodium sulfide to sulfide the free copper oxide minerals, add 100g / t isopentyl xanthate as copper sulfide minerals and sulfided free copper oxide mineral collector, adding pine oil frother 10g / t flotation to obtain copper concentrate, while leaving carbonate gangue tailings containing bound copper.

[0040] 2. Reverse flotation of tailings calcium magnesium carbonate gangue:

[0041] Combined copper tailings containing 10% to 20% calcium oxide and magnesium, adjust the pH of the slurry to 8 to 9, add 100g / t oleic acid, and flotation to obtain calcium magnesium carbonate gangue foa...

Embodiment 2

[0046] Oxygen-sulfur mixed copper ore containing 1.0% to 1.5% copper, 50% to 70% oxidation rate, 20% to 30% binding rate, and 10% to 20% calcium oxide and magnesium content

[0047] 1. Flotation of copper sulfide minerals and free copper oxide minerals:

[0048] Grind until 80% of the copper sulfide minerals and free copper oxide minerals are dissociated, add 1200g / t sodium sulfide to sulfide the free copper oxide minerals, add 800g / t butyl xanthate as copper sulfide minerals and The collector of free copper oxide minerals after sulfidation, adding 60g / t terpineol oil foaming agent to flotation to obtain copper concentrate, while leaving carbonate gangue tailings containing bound copper.

[0049] 2. Reverse flotation of tailings calcium magnesium carbonate gangue:

[0050] Combined copper tailings containing 10% to 20% calcium oxide and magnesium, adjust the pH value of the slurry to 9 to 10, add 400g / t of sodium oxide soap, and obtain calcium magnesium carbonate gangue foam ...

Embodiment 3

[0055] Oxygen-sulfur mixed copper ore with copper content of 1.5%-2.0%, oxidation rate of 50%-80%, binding rate of 30%-40%, calcium oxide and magnesium content of 10%-20%

[0056] 1. Flotation of copper sulfide minerals and free copper oxide minerals:

[0057] Grind until 80% of the copper sulfide minerals and free copper oxide minerals are dissociated, add 2000g / t sodium sulfide to sulfide the free copper oxide minerals, add 1200g / t isopropyl xanthate as copper sulfide minerals and sulfided free copper oxide mineral collector, add pine oil frother 80g / t flotation to obtain copper concentrate, and leave carbonate gangue tailings containing bound copper at the same time.

[0058] 2. Reverse flotation of tailings calcium magnesium carbonate gangue:

[0059] Combined copper tailings containing 10% to 20% calcium oxide and magnesium, adjust the pH value of the slurry to 10 to 11, add 500g / t lauric acid, and obtain calcium magnesium carbonate gangue foam products by flotation as t...

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Abstract

The invention relates to a flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore. The flotation and metallurgy method comprises the following steps of: firstly, recovering copper sulfide minerals and free copper oxide minerals in the high-bonding-ratio oxygen-sulfur mixed copper ore with high calcium-magnesium carbonate gangue mineral content by flotation; carrying out reverse flotation on calcium-magnesium carbonate ore in tailings obtained after floatation with fatty acid to obtain middlings containing combined copper and less calcium-magnesium carbonate minerals; then, adding sulphuric acid and stirring to leach out combined copper; and processing a copper-contained solution obtained after solid-liquid separation to obtain a copper product by a metallurgy method. The method combines the flotation and the metallurgy for complementary advantages, efficiently recovers and utilizes high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore resources incapable of being processed at present, lessens the emission of castoff, such as carbon dioxide, magnesium calcium sulfate, and the like and has favorable economic benefits and environmental benefits.

Description

technical field [0001] The invention relates to a method for dressing and smelting carbonate gangue-type oxygen-sulfur mixed copper ore with a high binding rate, and belongs to the technical field of ore dressing and metallurgy. Background technique [0002] Copper ore resources mainly include copper sulfide and copper oxide. Copper sulfide ore accounts for 80% and copper oxide ore accounts for 20%. Due to the large amount of copper sulfide ore resources and the relatively easy recovery of ore dressing, more than 80% of copper is currently derived from copper sulfide ore resources. It is very difficult to recover copper oxide ore, and the recovery rate is low. In today's shortage of copper ore resources, the efficient use of copper oxide resources has been put on the agenda, so the recovery of copper oxide ore has also made some progress. However, in copper ore resources, the surface of copper sulfide deposits is oxidized, forming a huge amount of oxygen-sulfur mixed copper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00B03D1/00B03D1/08
CPCY02P10/20
Inventor 文书明刘丹方建军刘殿文柏少军熊堃
Owner YUNNAN TIEFENG MINING CHEM NEW TECH CO LTD
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