2014-12-3ZnCuPbFeAgAu sulphide concentrate by processing in the 2 L volume glass reactor with magnetic stirring at 150 rmin and a temperature of 30 C in the presence of 0.15 CO2 enriched air. The total solution volume was 1 L. The solution contained 5 inoculum with nutrient medium and 5 gL polymetallic concentrate.
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