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Process for treating oil containing vegetable raw materials

  • US 4,045,879 A
  • Filed: 02/18/1976
  • Issued: 09/06/1977
  • Est. Priority Date: 02/20/1973
  • Status: Expired due to Term
First Claim
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1. A process for treating oil-containing vegetable seed particles to facilitate subsequent oil extraction from said particles, said process comprising the steps of:

  • a. forming the seed particles in a thin layer in a receiver provided with a bottom having apertures;

    b. moving the particles close to one another regularly for a relatively short time and moving the particles away from one another for a relatively short time while advancing said particles through the receiver;

    c. the movement of said particles towards and away from one another being obtained by effecting vibration of the receiver with a vertical vibration component having a low frequency of most 1000 vibrations per minute and high amplitude of about 5 to about 50 mm.;

    d. supplying a heat and moisture-containing gaseous fluid through the apertures in the bottom of the receiver during periods in which the apertures are open;

    e. heating the particles to a temperature of at least 90°

    C. to inactivate enzymes rapidly;

    f. thereafter decreasing the moisture content and temperature of the vegetable seed particles, by contacting the particles with each other regularly for a relatively short time and separating said particles from each other also for a relatively short time, said contact and said separation being obtained as in step (c), while a gaseous drying fluid supplied through openings in the bottom acts discontinuously on each individual particle when said openings are open due to the action of the vertical vibration component.

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