Abstract: A user-friendly centrifugal flotation cell with a rotating drum, is provided for use in an efficient separation process to rapidly recover greater quantities of valuable fine particles. In the process, a slurry of fine particles is injected with air bubbles and moved downwardly through a stationary downfeeder to a centrifuge comprising a rotating flotation cell. The aerated slurry is centrifugally separated into a waste stream of non-floating gangue material and a particulate-enriched froth comprising air bubbles carrying a substantial amount of the valuable fine particles. The froth is processed by froth flotation in a froth flotation chamber.
Type:
Grant
Filed:
June 9, 1997
Date of Patent:
July 27, 1999
Assignee:
Inter-Citic Envirotec, Inc.
Inventors:
Jian Ding, Wan-Tai Yen, Alan R. Pindred
Abstract: A superb centrifugal flotation cell with a rotating feed, is provided for use in an effective separation process to rapidly recover greater quantities of valuable fine particles. In the process, a slurry of fine particles is injected with air bubbles and moved downwardly through a stationary pipe and a rotating feed line comprising a centrifugal rotating downfeeder. The slurry is centrifugally discharged from the rotating downfeeder into the flotation chamber where the slurry is separated into a waste stream of non-floating gangue material and a particulate-enriched froth comprising air bubbles carrying a substantial amount of the valuable fine particles for further processing.
Type:
Grant
Filed:
June 9, 1997
Date of Patent:
June 22, 1999
Assignee:
Inter-Citic Envirotec, Inc.
Inventors:
Jian Ding, Wan-Tai Yen, Alan R. Pindred