Method for producing cathode copper through refractory glutenite copper ore

A sandy conglomerate and cathode copper technology, applied in the field of metallurgy, can solve the problems of waste of mineral resources, large mud content, poor permeability, etc., and achieve the effects of improving copper leaching rate and recovery rate, improving economic benefits, and efficient utilization

Inactive Publication Date: 2018-09-07
YUNNAN CHIHONG ZINC & GERMANIUM
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Problems solved by technology

Refractory glutenite copper ore generally adopts heap leaching-extraction-reverse extraction-electrodeposition process, but due to the large mud content, after a period of time during heap leaching, the mud content and sulfuric acid will produce sulfate, which will block the pores of the ore and make the The storage yard is compacted and the permeability is poor, resulting in low copper leaching rate and recovery rate, increasing the cost of refining, and causing a waste of mineral resources
[0003] Therefore, it is urgent to develop a method for producing cathode copper from refractory glutenite copper ore with high copper leaching rate, recovery rate and resource utilization rate, to solve the above problems, and there is no effective solution at present at home and abroad

Method used

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  • Method for producing cathode copper through refractory glutenite copper ore

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Comparison scheme
Effect test

Embodiment 1

[0027] The grade of refractory glutenite copper ore contains Cu: 1.5%, SiO 2 :55%, Al 2 o 3 : 9%, CaO: 4%, Fe: 1.6%, MgO: 0.5%, CO 2 :8%. Raw ore with a particle size of <400mm (copper oxidation rate ≥ 60%), after crushing, becomes an ore with a particle size of <30mm.

[0028] Using a Ф2000×6000 lump mining machine, refractory glutenite copper ore, water, ore concentrated sulfuric acid (containing 98.3% sulfuric acid) are added in a mass ratio of 100:5:2, and the angle between the center line of the lump mining machine and the horizontal plane is 10 degrees. Through the rotation of the agglomeration machine, water, concentrated sulfuric acid and refractory glutenite copper ore are evenly stirred, and the reaction occurs to dissociate copper from gangue or other minerals, and make the refractory glutenite copper ore loose and increase the porosity. Mature refractory glutenite copper ore is conveyed by its own weight from the rear end of the pellet machine through the disch...

Embodiment 2

[0034] The grade of refractory glutenite copper ore contains Cu: 2.0%, SiO 2 :52%, Al 2 o 3 :8%, CaO:3%, Fe:1.5%, MgO:0.4%, CO 2 :7%. Raw ore with a particle size of <300mm (copper oxidation rate ≥ 60%), after crushing, becomes an ore with a particle size of <25mm.

[0035] Using a Ф2000×6000 lump mining machine, refractory glutenite copper ore, water, ore concentrated sulfuric acid (containing 98.3% sulfuric acid) are added in a mass ratio of 100:10:5, and the angle between the center line of the lump mining machine and the horizontal plane is 20 degrees. Through the rotation of the agglomeration machine, water, concentrated sulfuric acid and refractory glutenite copper ore are evenly stirred, and the reaction occurs to dissociate copper from gangue or other minerals, and make the refractory glutenite copper ore loose and increase the porosity. Mature refractory glutenite copper ore is conveyed by its own weight from the rear end of the pellet machine through the discharg...

Embodiment 3

[0041] The grade of refractory glutenite copper ore contains Cu: 3.0%, SiO2 :49%, Al 2 o 3 : 7%, CaO: 2%, Fe: 1.4%, MgO: 0.3%, CO 2 :7%. Raw ore with particle size <200mm (copper oxidation rate ≥ 80%), after crushing, becomes ore with particle size <20mm.

[0042] Using a Ф2000×6000 lump mining machine, refractory glutenite copper ore, water, ore concentrated sulfuric acid (containing 98.3% sulfuric acid) are added in a mass ratio of 100:20:10, and the angle between the center line of the lump mining machine and the horizontal plane is 30 degrees. Through the rotation of the agglomeration machine, water, concentrated sulfuric acid and refractory glutenite copper ore are evenly stirred, and the reaction occurs to dissociate copper from gangue or other minerals, and make the refractory glutenite copper ore loose and increase the porosity. The mature refractory glutenite copper ore is transported by its own weight from the rear end of the pellet machine through the discharge h...

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Abstract

The invention discloses a method for producing cathode copper through refractory glutenite copper ore, and belongs to the technical field of metallurgy. According to the method, the refractory glutenite copper ore is crushed, granulated and subjected to curing treatment, dump leaching, extraction and electrodeposition treatment, and the cathode copper is prepared. Before dump leaching treatment, raw ore particles are subjected to sulfating curing pretreatment, copper is separated from gangue or other minerals, meanwhile, the refractory glutenite copper ore is loosened, the purpose of porosityincreasing is achieved, dump leaching is facilitated, the leaching rate is improved by 10%-20%, and a good condition is provided for later cathode copper production. The produced cathode copper purityis high, the yield is large, the copper leaching rate and the recycling rate of the refractory glutenite copper ore are effectively improved, the mineral resource is more efficiently utilized, and economic benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, in particular to a method for producing cathode copper from refractory glutenite copper ore. Background technique [0002] Refractory glutenite copper deposits generally have the characteristics of high oxidation rate, high content of combined copper oxide, disseminated particle size, large amount of gangue (containing 60-80% gangue composition), and multi-metal symbiosis. Refractory glutenite copper ore generally adopts heap leaching-extraction-reverse extraction-electrodeposition process, but due to the large mud content, after a period of time during heap leaching, the mud content and sulfuric acid will produce sulfate, which will block the pores of the ore and make the The storage yard is compacted and the permeability is poor, resulting in low copper leaching rate and recovery rate, increasing the cost of refining, and causing a waste of mineral resources. [0003] Therefore, it is urgen...

Claims

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Application Information

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IPC IPC(8): C25C1/12C22B3/08C22B3/40C22B15/00
CPCC22B3/08C22B15/0071C25C1/12C22B3/26Y02P10/20
Inventor 孙刚彭东平骆步云陈波吴红林李衍林李忠洪
Owner YUNNAN CHIHONG ZINC & GERMANIUM
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