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  • Title: [Preparation of Copper and Nickel from Metallurgical Waste Products with the Use of Acidophilic Chemolithotrophic Microorganisms].
    Author: Fomchenko NV, Murav'ev MI.
    Journal: Prikl Biokhim Mikrobiol; 2015; 51(4):371-6. PubMed ID: 26353401.
    Abstract:
    The study concerns the leaching of copper, nickel, and cobalt from metallurgical production slag with trivalent iron sulphates prepared in the process of oxidation of bivalent iron ions with the use of associations of acidophilic chemolithotrophic microorganisms. At the same time, copper extraction in the solution reached 91.2%, nickel reached 74.9%, and cobalt reached 90.1%. Copper was extracted by cementation, and nickel as sulphate was extracted by electrolysis. Associations of microorganisms can then completely bioregenerate the solution obtained after leaching.
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