FIELD: mining.
SUBSTANCE: proposed method consists in subjecting of said concentrate to biological exposure without preliminary mechanical refining with the help of the complex of thione microorganisms. Obtained cake of biological exposure is subjected to wet magnetic separation to get sulphur-bearing solution of high-quality magnetite concentrate and tailings. Note here that biological exposure is performed with application of cultures of acidophilic thione microorganisms inherent in proper biocenoses of the deposit at S-to-L ratio of 1:5-1:7 at 15-45°C, initial values of Eh 650 mV, pH 1.5-2.15 and barometric pressure.
EFFECT: higher efficiency of dressing.
7 cl, 2 ex
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