METHOD FOR VEGETABLE OILS CLEARING FROM WAXES Russian patent published in 2014 - IPC C11B3/00 

FIELD: food industry.

SUBSTANCE: method for clearing vegetable oils from waxes envisages oil freezing out with addition of accessory filter powders. Then oil is maintained under low temperature conditions; then spent filter powder with wax-containing sediment is separated from the cleared vegetable oil. The spent separated filter powder is subjected to regeneration by way of maintenance in UHF electromagnetic field with radiation frequency equal to 2450 MHz, specific power equal to 800-1000 W/kg during 8-15 minutes with simultaneous impact of ultrasound with specific power equal to 15-17 W/cm² and oscillation frequency equal to 60-80 kHz. Then the spent filter powder is separated into a wax fat product and regenerated filter power. The regenerated filter powder is repeatedly used in subsequent cycles of oil freezing out.

EFFECT: invention allows to improve cleared oil quality due to reduction of peroxide and anisidine compounds content, increase oil safe storage life, enhance performance of equipment for regeneration of spent powder for freezing out operations.

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