ABOUT THE USE OF R-66 REAGENT IN THE TECHNOLOGY OF FLOTATION ENRICHMENT OF MIXED COPPER

The paper presents laboratory and pilot flotation tests of the R-66 reagent on samples of mixed copper ore from the Konyrat deposit. The medium regulator reagent was supplied to the main flotation. Laboratory tests of the technol-ogy of flotation concentration on ore with a copper content of 0,31 % in a closed cycle in the optimal mode: R-66 -100 g/t, sodium sulfide -150 g/t, xanthate -45 g/t, blowing agent -60 g/t allows to extract copper into concentrate up to 85 %. At the same time, the copper content in the concentrate after two cleanings was reached at the level of 4,5 %, sulfur 42,3 %. At the same time, the R-66 reagent (100 g/t) makes it possible to completely eliminate the use of lime (1 000 g/t) in the ore dressing scheme.