Application of Mixed Flotation in Separation of Lead and Zinc

A lead-zinc ore, deposit account belonging to the carbonate rocks. Ore part of sphalerite and galena floatability similar, and difficult to float sphalerite and pyrite floatability similar. Therefore, when floating lead, under the principle of floating lead, a part of the easy-floating zinc ore is floated, and the tailings of the floating lead are mixed with zinc and sulfur.
Lead-based lead-zinc mixing, the collector is mainly black medicine, and a part of xanthate is mixed. The medium adjuster uses lime with a pH of about 8. In general, when lead and zinc flotation, if there is little or no pyrite in the ore, it is best to adjust the pH with sodium carbonate. Because of the adverse effect of lime on the floatability of the lead ore. At present, a small amount of cyanide is added during the flotation of lead and zinc in the factory, which is mainly used to suppress pyrite with high activity.
Separation in lead-zinc mixed concentrate, using cyanide in combination with zinc sulfate and zinc-suppressing lead.

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