Abstract:Taking a high arsenic and high sulfur copper zinc ore as the research object, a preferential flotation process is adopted to recover copper and zinc minerals from the ore. In the copper flotation stage, black catching agent No.25 is used as the collector of copper sulfide, calcium oxide and sodium humate are used as inhibitors of arsenopyrite, pyrite and sphalerite. In the zinc flotation stage, EF1108 was used as the collector for zinc sulfide minerals, and calcium oxide and sodium humate were used as inhibitors for arsenopyrite and pyrite, efficient recovery of copper and zinc minerals was achieved. In this study, the highly selective collector EF1108 was used as the collector of zinc sulfide minerals instead of the traditional xanthate agents, which played a high effect on the inhibition of arsenopyrite and pyrite at low alkalinity (pH 11.5).
