Ultrasonic flotation system

Details Ultrasonic flotation system Ultrasonic flotation system

1990-06-21

1991-10-22

Silverman, Stanley S.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209170, 210703, 2102212, 241 1, 261 81, 261DIG48, B03D 114, B03D 124

Patent

active

050593099

ABSTRACT:
An ultrasound flotation unit for separation of tails from liquors obtained by floating ores, wherein the unit comprises a vertically disposed cylindrical mixing chamber that forms a bubble-particle contact region within a cylindrical flotation cell that has a bubble-pulp separation region surrounding said mixing chamber; the chamber having an air feed conduit in a lower portion thereof, an ore pulp feed conduit in a higher portion above said air feeding chamber, an ultrasonic transducer disposed above an aperture in a top portion of the mixing chamber and means for subjecting said chamber to an amount of power in kilowatt-hours per metric ton through a sonic probe to focus an amount in watt/ml of ultrasonic power to the chamber to provide a residence time of slurry within the bubble-pulp separator region that is about 30 to 100 times longer than in the ultrasonic mixing chamber.

REFERENCES:
patent: 2093898 (1937-09-01), Taplin
patent: 3400818 (1968-09-01), Tarjan
patent: 4045243 (1977-08-01), Wohlert
patent: 4226705 (1980-10-01), Lecoffre
patent: 4537599 (1985-08-01), Greenwald
patent: 4606822 (1986-08-01), Miller
patent: 4613430 (1986-09-01), Miller

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