Filtration of vegetable slurries

• Main Authors: NEWKIRK REX W, CLASSEN HENRY L, MAENZ DAVID D
• Format: Patent
• Language: English
• Published: 02.08.2011
• Subjects: CHEMISTRY; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; PERFORMING OPERATIONS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PRESSES; PRESSES IN GENERAL; PROTEIN COMPOSITIONS FOR FOODSTUFFS; SEPARATION; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; WORKING-UP PROTEINS FOR FOODSTUFFS

Shown is a two stage filtration system for treatment of fibrous vegetable matter, particularly oilseed materials such as oil-extracted canola flakes to separate the low valued fibrous material from soluble material and small non-structural water-insoluble material of higher value. The filtration system receives a vegetable matter 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 filter in a second compression filtration stage or a centrifuge to remove additional water. Small non-structural insoluble matter is removed in the filtrate.