Abstract
The results of investigations into processing the nickel-containing ores and concentrates (the sulfide copper-nickel ore of the Shanuch deposit, the nickel-pyrrhotine concentrate of the Talnakh processing plant, and the silicate nickel ore) with the use of microorganisms of immobilized bacteria as surfactants for autoclave leaching and bacterial iron-containing solutions for the utilization of sulfur-containing gases of pyrometallurgic production are presented. The influence of the presence of flotation reagents and nickel ions on the oxidizing activity of biomass is investigated. The combined production flowcharts of processing nickel-containing raw materials applying the bacterial-chemical oxidation are developed.
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