| 摘要 |
FIELD: mineral dressing. ^ SUBSTANCE: process comprises crushing, conditioning with acid, ionic sulfur-containing collector, and modifying reagent, and flotation leading to isolation of sulfides into foamed product, said modifying reagent being a composition containing 80.0-99.0% isoalkenylacetylenic alcohols C8-C10 having general formula RCH=CR'C=C-C(CH2R")(CH3)OH, 0-20% diisoalkenylacetylenes C8-C10 having general formula RCH=CR'C=C-C(CH2R")=CHR"', 0-5.0% alpha-acetylenic gamma-diols C8-C10 having general formula (RCH2)(CH3)C(OH)-C=C-C(CH2R")(CH3)OH, and 0-1.0% radical polymerization inhibitor. In presented formulas: R=H, CH3; R' = CH3, C2H5; R" = H, CH3; and R"' = H, CH3. ^ EFFECT: enlarged choice of modifying reagents. ^ 1 tbl, 3 ex |
