Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors

Details Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors Neutral hydrocarboxycarbonyl thionocarbamate sulfide collectors

B - Operations, Transporting

03

D

361/24

B03D 1/012 (2006.01) B03D 1/008 (2006.01) B03D 1/01 (2006.01)

Patent

CA 1278111

NEUTRAL HYDROCARBOXYCARBONYL THIONOCARBAMATE SULFIDE COLLECTORS ABSTRACT OF THE DISCLOSURE New and improved collector compositions for use in froth flotation processes for the beneficiation of mineral values from base metal sulfide ores are disclosed. The collector compositions comprise at least one hydrocarboxy- carbonyl thionocarbamate compound selected from compounds of the formula: Image wherein R1 and R2 are each, independently, selected from saturated and unsaturated hydrocarbyl radicals, alkyl poly- ether radicals and aromatic radicals, or such radicals op- tionally substituted by polar groups selected from halogen, nitrile and nitro groups. The use of the hydrocarboxycarbonyl thionocarbamate collectors provides excellent metal- lurgical recoveries of sulfide mineral values in froth flotation processes conducted over a broad range of pH con- ditions including acid, neutral and mildly alkaline pH.

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