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Beneficiation method for copper nickel sulfide ore

A beneficiation method and technology for copper-nickel ore, applied in flotation, solid separation and other directions, can solve the problems of difficult separation of copper-nickel, poor quality of copper-nickel concentrate, mutual inclusion of copper and nickel, etc. The effect of wide application and simple process

Active Publication Date: 2011-03-16
西部矿业集团科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an economical, applicable, simple, clean and separated copper-nickel concentrate for the problems in the above-mentioned prior art, such as the difficulty of copper-nickel separation, poor quality of copper-nickel concentrate, and serious copper-nickel mutual inclusion in the concentrate. Beneficiation method of copper-nickel sulfide ore with good effect and high recovery efficiency

Method used

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  • Beneficiation method for copper nickel sulfide ore
  • Beneficiation method for copper nickel sulfide ore
  • Beneficiation method for copper nickel sulfide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, pentlandite, pyrrhotite, magnetite, pyrite, and limonite. The gangue minerals in the ore include talc, translucent Stone, pyroxene, olivine, etc., the copper and nickel grades in the ore are low, of which Cu: 0.27%, Ni: 0.72%. The intercalation characteristics of copper and nickel minerals are complex, the intercalation particle size is mainly medium-grained, and the intercalation is medium-fine, the monomer dissociation is poor, and the copper and nickel are closely connected.

[0039] The complex and low-grade fine-grained copper-nickel sulfide ore is flotation-separated by using the copper-nickel sequential priority flotation separation process of the present invention, and the separation steps are as follows:

[0040] (1) Grinding the raw ore, the grinding fineness is -0.074mm and greater than 78%.

[0041] (2) Preferential flotation of copper minerals is carried out on the gr...

Embodiment 2

[0052] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, pentlandite, pyrrhotite, magnetite, pyrite and limonite. The gangue minerals in the ore include olivine and talc , tremolite, pyroxene, etc., the copper and nickel grades in the ore are low, of which Cu: 0.22%, Ni: 0.42%. The intercalation characteristics of copper and nickel minerals are relatively complex, the intercalation particle size is mainly medium-grained, and the intercalation is medium-fine, the monomer dissociation is poor, and the copper and nickel are closely connected.

[0053] The complex and low-grade fine-grained copper-nickel sulfide ore is flotation-separated by adopting the copper-nickel sequential priority flotation separation process of the present invention, and the separation steps are as follows:

[0054] (1) Grinding the raw ore, the grinding fineness is -0.074mm and greater than 82%.

[0055] (2) Preferential flotation of copper minerals is carried out ...

Embodiment 3

[0066] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, copper blue, pentlandite, pyrite, magnetite, pyrrhotite, etc. The gangue minerals in the ore mainly include olivine, snake Taurite, soapstone, talc, chlorite, etc., the grades of copper and nickel minerals in the raw ore are low, of which Cu: 0.36%, Ni: 0.55%. The intercalation characteristics of copper and nickel minerals are more complex, the intercalation particle size is mainly medium-grained, coarse-medium-grained, and some are micro-fine-grained, and the monomer dissociation is better.

[0067] The copper-nickel sulfide ore is carried out by flotation separation by adopting the copper-nickel sulfide ore in sequence by the priority flotation separation process of the present invention, and the separation steps are as follows:

[0068] (1) Grind the raw ore, and the grinding fineness is -0.074mm greater than 75%.

[0069] (2) Preferential flotation of copper minerals is carrie...

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Abstract

The invention relates to a beneficiation method for copper nickel sulfide ore. The beneficiation method is characterized in that a beneficiation process of the method comprises the following steps of: grinding crude copper nickel ore; preferably floating copper mineral from the ground crude ore; performing copper selection on the obtained rough copper concentrate I for five times to obtain copperconcentrate and five selected copper middlings; performing copper scavenging on copper tailing I twice to obtain copper tailing II and two scavenged copper middlings; performing rough selection of nickel mineral on the obtained copper tailing II to obtain rough nickel concentrate and nickel tailing I; performing nickel selection on the obtained rough nickel concentrate for three times to obtain the nickel concentrate and three selected nickel middlings; performing nickel scavenging on the obtained nickel tailing I twice to obtain the nickel tailing and two scavenged nickel middlings; and sequentially returning the two scavenged nickel middlings to the previous layer respectively. By the method, the copper and the nickel have high adaptability to the sequential preferred floatation and separation process, so that the copper and nickel mineral embedded into complex low-grade fine particles can be recovered, the preferred floatation and separation of the copper and nickel mineral can be realized, the quality and the recovery rate of the copper and nickel concentrate are obviously improved, and the method is simple in operation and high in controllability, and has strong adaptability to the ore.

Description

technical field [0001] A beneficiation method for copper-nickel sulfide ore relates to a beneficiation method for separating copper and nickel from copper-nickel ore, in particular to a flotation separation method for copper-nickel sulfide ore embedded with low-grade fine grains. Background technique [0002] At present, most copper-nickel ores are complex in nature, low in grade, complex inlay characteristics, fine inlay particle size, and serious gangue mineral mudification in the ore, which makes it difficult to flotation and separate copper-nickel minerals, and it is difficult to obtain qualified copper, nickel ore. Nickel single concentrate. In terms of production, it is mainly due to the low grade of the main metal in the single concentrate of copper and nickel, and the high content of impurities, and the serious mutual inclusion of copper and nickel. For these low-grade fine-grained copper-nickel sulfide ores, most mines either only separate copper-nickel mixed conce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/08
Inventor 罗仙平周晓白杨备周贺鹏袁宪强罗礼英唐学昆
Owner 西部矿业集团科技发展有限公司
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