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
CN101985113AActive Publication Date: 2011-03-16西部矿业集团科技发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西部矿业集团科技发展有限公司
Publication Date
2011-03-16

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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.
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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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