Flotation reagents and flotation processes utilizing same
AssigneeCytec Technology Corp.
InventorsDevarayasamudram Ramachandran Nagaraj, Tarun Bhambhani, Mukund Vasudevan, Puspendu Deo, Haunn-Lin Tony Chen
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Abstract
Methods of enhancing recovery of value sulfide and/or precious metal-bearing minerals from an ore containing such minerals as well as Mg-silicate, slime forming minerals, and/or clay by adding a froth phase modifier agent to the ore, and subjecting the ore to a froth flotation process performed under acidic conditions, are provided herein.
Claims14
A method of enhancing recovery of a value sulfide mineral and/or a precious metal-bearing mineral from an ore containing said value sulfide mineral and/or precious metal-bearing mineral, and one or more of a Mg-silicate, a slime forming mineral, and/or a clay, said method comprising:
- adding to one or more stage of a froth flotation process performed under acidic conditions a froth phase modifier comprising a polymer selected from the group consisting of poly(styrene-co-maleic anhydride-co-2-acrylamido-2-methyl-1-propanesulfonic acid),
- poly(allyl sulfonate-co-maleic anhydride),
- hydroxamated poly(acrylamide-co-vinylphosphonic acid),
- poly(acrylic acid-co-vinylphosphonic acid),
- poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-vinylphosphonic acid),
- silane- and tert-octylamine modified poly(N-vinylpyrrolidone-co-maleic anhydride),
- 3-aminopropyltriethoxysilane modified poly(styrene-co-maleic anhydride),
- 3-aminopropyltriethoxysilane modified poly(styrene-co-maleic anhydride-co-acrylic acid),
- hydroxamated poly(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonic acid), and mixtures thereof,
- thereby enhancing recovery of said value sulfide mineral and/or precious metal-bearing mineral from said ore.
Dependencies are inferred from the claim text.