Flotation method
AssigneeForschungszentrum Julich GmbH
InventorHorst Overath
Life of this patent
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Abstract
A flotation method in which the gas bubbles for inducing flotation of the solids in the liquid are produced by a chemical reaction, for example a decomposition of hydrogen peroxide to oxygen and water, induced by catalytic action. The catalyst is on the walls of the flotation reaction and the substance to be flotated is introduced tangentially and caused to flow downwardly and thus upwardly in the reactor.
Claims12
A flotation method comprising the steps of:
- (a) flotating solids in suspension in a liquid with gas bubbles rising in said liquid;
- and
- (b) generating the gas bubbles by effecting a gas-producing reaction in said liquid by bringing a liquid into contact with a catalyst-coated surface of a flotation reactor.
A flotation method comprising the steps of:
- (a) forming a flotation vessel with at least one surface at a bottom portion of said vessel coated with a catalyst;
- (b) introducing into said vessel a suspension containing solids to be subjected to flotation in a liquid capable of catalytic reaction upon contact with said catalyst to form a gas into said vessel, whereby bubbles of said gas are formed by catalytic reaction of said liquid to entrain said solids upwardly in said vessel;
- and
- (c) removing said solids from said liquid at an upper portion of said vessel.
A flotation method in which a flotation liquid is brought into contact with a catalyst-coated surface of a flotation vessel whereby a gas is catalytically produced in said liquid.
Dependencies are inferred from the claim text.