Filtration of viscous oilseed slurries

Details Filtration of viscous oilseed slurries Filtration of viscous oilseed slurries

A - Human Necessities

23

J

A23J 1/14 (2006.01) A23J 3/14 (2006.01) B01D 21/24 (2006.01) B01D 25/12 (2006.01) B01D 36/02 (2006.01) B30B 9/06 (2006.01) B30B 9/12 (2006.01) B30B 9/24 (2006.01) C11B 7/00 (2006.01)

Patent

CA 2412613

Discloses a two stage filtration system for treatment of oilseed materials such as oil-extracted canola flakes to separate the low valued fibrous material dispersed by aqueous extractions. The filtration system receives a product slurry and passes the slurry through first stage filter which is an impeller type filter that operates to separate the slurry into a filtrate and a moist retentate. The moist retentate is further filtered in a second compression filtration stage to remove additional water. The first stage impeller type filter is a tubular auger arrangement or a mixing vessel having a filter medium as a portion of the vessel wall with an impeller blade closely fitted to the filter medium. The second stage compression filter is preferably a passage of decreasing cross sectional area such as a screw press or a belt press but can include a piston and vessel arrangement.

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