Flotation kinetics of chalcopyrite and pyrite

Found that long-term practice, flotation kinetics yellow copper ore, molybdenite, pyrite and silicate gangue significantly different. Chalcopyrite floats faster than pyrite in both rough and selective circuits. In theory, most of the pyrite can be discharged into the rough-selected tailings. However, due to the transfer of the continuum and the foam layer, some pyrite, gangue minerals and non-sulfided minerals can also enter the copper concentrate. The silicate gangue and copper minerals have different floating speeds in the roughing circuit. When the pulp concentration is small, the silicate gangue enters the foam less. Flotation conditions depends on the change in the physical properties of minerals, such as grindability, particle size distribution and content of fine mud, while depending on the surface chemistry and chemical nature of the mineral slurry, such as oxidation - reduction potential and the presence or absence of heavy metal ions Wait.

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