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Flotation of Chromite OreRougher flotation of ore containing abundant olivine upgraded the chromite from 23.4 to 29.6 percent Cr2O3 at a recovery of 89.4 percent. The technique was also applied to chromite gravity concentrates to further upgrade chromite and to reject silicates. Flotation of a gravity concentrate containing 40.9 percent Cr2O3 and 4.4 percent SiO2 recovered 90 percent of the chromite in cleaner ...

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Bioleaching of copper ore flotation concentrates ...Bioleaching of copper flotation concentrate has been investigated by Rivera-Santillan et al. (1999). Compared with other copper sulfide concentrates the Polish copper flotation concentrate contains carbonate minerals, such as dolomite and calcite. The microscopic observation revealed that the gypsum precipitation occurred during a bioleaching process. However, this precipitation may not be ...floatation concentrate ore - Verkeersacademie .floatation concentrate ore. Flotation Cell ControlInternational Mining. of upstream processes and are not controlled in the flotation circuit itself. Each of the flotation cell control parameters are discussed below. Reagent dosing rate . The selection of reagent type and dosing rate is critical to successful processing of a given ore. It offers a coarse control mechanism as it is difficult to ...

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