PLANT OIL REFINING METHOD AND APPARATUS Russian patent published in 2000 - IPC

FIELD: fat-and-oil industry. SUBSTANCE: method involves two refining stages: at primary refining stage large-sized mechanical contaminants are removed from plant oil by straining them through perforated surface with 0.3-1.5 mm sized perforations and by separating sediment; at secondary stage, muddy inclusions are removed from plant oil by settling and filtering, filtering under compressed gas pressure; performing filtering of contaminants. Pressed sediment produced at primary refining-straining stage is used as filtering member. Apparatus has oil presses with capacity of 500 kg/hour. Apparatus of such construction may be used in small oil-refining plants. EFFECT: simplified oil refining process and construction of oil refining equipment, and reduced power consumption. 8 cl, 2 dwg