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Benefication method for copper nickel

A beneficiation method and technology for copper-nickel ore, applied in flotation, solid separation and other directions, can solve the problems of poor quality of copper-nickel concentrate, difficult separation of copper-nickel, mutual inclusion of copper and nickel, etc. The effect of not polluting the natural environment and stable process

Active Publication Date: 2013-02-06
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 solution for the problems of high difficulty in copper-nickel separation, poor quality of copper-nickel concentrate, and serious copper-nickel mutual inclusion in the concentrate in the above-mentioned prior art. The beneficiation method of copper-nickel ore with good effect

Method used

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  • Benefication method for copper nickel
  • Benefication method for copper nickel
  • Benefication method for copper nickel

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, pentlandite, goethite, purple sulfur nickel ore, and associated with rare and precious metals such as gold, silver, platinum, and palladium. Minerals include serpentine, talc, chlorite, pyroxene, olivine, etc. The grades of copper and nickel in the raw ore are low, of which Cu: 0.20%, Ni: 0.48%. The intercalation characteristics of copper and nickel minerals are complex, the intercalation particle size is fine to micro, the monomer dissociation is poor, and the copper and nickel are densely contiguous.

[0043] The complex low-grade fine-grained copper-nickel sulfide ore is flotation-separated by flotation separation technology such as copper-nickel. Raw ore grinding fineness -0.074mm content greater than 83%, add foaming agent 2 # Oil 14g / t for raw ore desliming, after desliming, add collector Z-200 14g / t, foaming agent 2 # Oil 14g / t, for flotation of copper minerals and some ni...

Embodiment 2

[0048] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, pyrite, pentlandite, pyrrhotite, magnetite, etc. The gangue minerals in the ore include olivine, pyroxene, and serpentine Stone, tremolite, talc, soapstone, etc. The grades of copper and nickel in the raw ore are relatively low, among which the grade of Cu is 0.27%, and the grade of Ni is 0.54%. The intercalation characteristics of copper and nickel minerals are complex, the intercalation particle size is mainly medium-fine grain intercalation, the monomer dissociation is poor, and the copper and nickel minerals are obviously co-grown.

[0049] Adopt flotation separation process such as copper nickel of the present invention to carry out flotation separation to it, and its sorting step is:

[0050] (1) Grinding and desliming copper-nickel raw ore; the grinding fineness is -0.074mm greater than 78%; adding air bubble agent 2 during desliming # Oil 14g / t, action time is 4 minutes; ...

Embodiment 3

[0063] The selected raw ore is a polymetallic copper-nickel sulfide ore containing chalcopyrite, copper blue, red arsenic nickel ore, pentlandite, pyrite, magnetite, 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: 0.53%. The intercalation characteristics of copper and nickel minerals are complex, and the intercalation particle size is mainly medium-grained, showing medium-fine intercalation, and some are micro-fine intercalation, the monomer dissociation is poor, and copper and nickel are closely connected.

[0064] The steps of the beneficiation process are:

[0065] (1) Grinding and desliming copper-nickel raw ore; the grinding fineness is -0.074mm greater than 78%; adding air bubble agent 2 during desliming # Oil 14g / t, action time is 2 minutes;

[0066] (2) The raw ore after desliming is subjected to copper mineral flotation...

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Abstract

The invention relates to a benefication method for copper nickel. The benefication method for the copper nickel is characterized by comprising the following steps of: (1) finely grinding and desliming on raw copper nickel; (2) performing copper ore flotation on the deslimed raw ore; (3) performing copper concentration on mixed copper rough concentrate obtained in the step (2); (4) performing copper scavenging on copper middling ore I in the step (3); (5) regrinding the mixed copper nickel concentrate of copper and part of nickel in the step (3) and then performing copper nickel separation; (6) performing copper concentration on the copper rough concentrate in the step (5) and performing copper scavenging on the nickel rough concentrate in the step (5); (7) performing copper scavenging II on the nickel concentrate in the step (6); and (8) performing nickel roughing on the reground copper tailings in the step (4). In the benefication method for the copper nickel of the invention, the adaptability of a flotation separation process is high; complex low-grade particle-embedded copper and nickel minerals can be recycled; flotation separation of the copper and nickel minerals can be realized; and the quality and the recovery rate of copper and nickel concentrate are obviously improved.

Description

technical field [0001] A beneficiation method for copper-nickel ore relates to a beneficiation method for separating copper and nickel from copper-nickel ore, in particular to a flotation separation method for low-grade fine-grained copper-nickel ore. Background technique [0002] At present, most copper-nickel ores are complex in nature, low in grade, finely embedded, and the gangue minerals in the ore are severely muddy, which leads to difficulties in copper-nickel flotation and separation from each other, and it is difficult to obtain qualified concentrates of copper and nickel. In terms of production, the main metal grades in copper and nickel concentrates are low, and the impurity content is high, and the copper and nickel are contained seriously. For these complex and low-grade fine-grained copper-nickel sulfide ores, most mines either only separate copper-nickel mixed concentrates, or are not effectively developed due to the difficulty of beneficiation. Only a few mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/002B03D1/08B03D101/02B03D101/04B03D101/06
Inventor 罗仙平祝军周贺鹏王忠诚雷梅芬袁武益王笑蕾谢先剑路永森倪先成
Owner 西部矿业集团科技发展有限公司
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