Reagents that prevent unwanted minerals from floating, protecting concentrate grade.
A controlled-use reagent applied at low dosage to depress pyrite and pyrrhotite during copper and gold sulphide flotation.
View →A classic depressant for sphalerite (zinc sulphide), used together with cyanide in copper-zinc and lead-zinc separation circuits.
View →An organic polymer depressant for talc and naturally hydrophobic gangue, widely used in PGM and nickel-sulphide flotation.
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