METHOD OF PROCESSING SULFIDE GOLD-CONTAINING FLOTATION CONCENTRATES Russian patent published in 2017 - IPC C22B11/00 C22B30/02 C22B3/18 C22B3/24 

FIELD: chemistry.

SUBSTANCE: process of bioleaching the gold-containing flotation concentrates is carried out simultaneously with the sorption process of antimony from the biopulp, antimony sorption is carried out by the anion exchange resin Lewatit MonoPlus of the brand MR-64, charged to the sulfate form with 5% sulfuric acid solution, with a resin consumption of not more than 5% of the biopulse volume in the reactor and the duration of the sorption process is not less than 24 hours, the resin supply is carried out according to the countercurrent principle.

EFFECT: increasing the complexity of processing gold-bearing ores, more complete extraction of antimony from sulfuric acid solutions, in particular from the biopulp of gold-containing flotation concentrates, reducing the toxic burden of heavy metals on the association of microorganisms, which in turn increases the stability of the process and the possibility of extracting antimony into additional commercial products.

3 cl, 5 tbl