Collectors

They should be used by selecting the mineral of primary interest to prevent the recovery of other minerals.

• Xanthates:  Chemical reagents used for mineral concentration by the conventional flotation method. Composed of alcohols, Sodium and Potassium. Mainly used as a primary collector in sulphide minerals, polymetallic PAX, SIPX, SIBX
• Thiocarbamate:  Are oily collectors derived from Ethyl Propyl thiocarbamate. It is generally used in flotation circuits in PH from 4 to 12. Used mainly for the recovery of copper, silver, gold and nickel minerals in the presence of oxidized minerals or silty clays.
• Dithiophosphates:  Highly selective collector, for this reason it is used as a secondary collector. Used mainly for gold and silver recovery when associated with sulphide minerals.
• Dithiocarbamate:  Secondary collectors, preferably used in sulfate-associated minerals. Like copper and silver sulfates. Provides higher flotation speed and high selectivity.