FIELD: fat and oil industry. SUBSTANCE: method involves extraction of plant raw with hexane or other low-boiling not mixing with water hydrocarbons. Miscella is separated from defatted residue by filtration or centrifugation, and oil is separated from the solvent by evaporation. Before extraction plant raw is treated preliminary with ethanol aqueous solution (once or repeatedly) up to the final ethanol concentration in prepared liquid phase 50-70 vol. Solid phase remained after ethanol treatment is extracted with hydrocarbons. EFFECT: improved method of oil producing.
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Authors
Dates
1995-10-27—Published
1993-04-02—Filed