Benefication method for copper nickel
A beneficiation method, copper-nickel ore technology, applied in flotation, solid separation, etc., can solve the problems of copper-nickel intercontainment, poor quality of copper-nickel concentrate, and difficult copper-nickel separation, etc., to achieve process stability and ore Strong adaptability, no pollution to the natural environment
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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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