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US 5,180,511 AGranted
Flotation aid and process for removal of impurities from silicate minerals
AssigneeJ.M. Huber Corporation
InventorJohn M. M. Harrison
Life of this patent
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Abstract
A novel flotation aid for use in the flotation removal of contaminates or impurities from mineral slurries. The flotation aid is an alkali aluminate compound. The flotation aid may be incorporated into a flotation reagent system that includes a chemical collector.
Claims12
A composition comprising (a) a dispersed water slurry containing clay minerals and contaminants, (b) an alkali metal aluminate being present in an amount of 1/8 pound to 3/8 pound per ton dry weight clay present;
- (c) oleic acid being present in an amount of 3 pounds to 6 pounds per ton dry weight clay present;
- and (d) alkali hydroxide being present n an amount sufficient to maintain a pH of 8 to 9 in the water slurry of clay minerals.
A composition comprising (a) a dispersed water slurry of kaolin and contaminants;
- (b) sodium aluminate being present in an amount of 1/8 pound to 3/8 pound per ton dry weight kaolin;
- (c) oleic acid being present in an amount of 3 pounds to 6 pounds per ton dry weight kaolin;
- and (d) sodium hydroxide being present in an amount sufficient to maintain a pH of 8 to 9 in the kaolin slurry.
Dependencies are inferred from the claim text.