Patents Assigned to Nederlandsche Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek
  • Apparatus for treatment of suspended particles with a liquid in countercurrent
    Patent number: 4743434
    Abstract: An apparatus for treating in counter current of suspended particles with a liquid, whereby the particles and the liquid are transferred in opposite directions through a contact zone which, at some places, spaced in axial direction, is stirred in planes perpendicular to the centre line of the contact zone, in which the contact zone is one continuous space and that the volume fraction of the solid matter in the contact zone is maintained at a value between 0.20 and 0.55.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: May 10, 1988
    Assignee: Nederlandsche Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek
    Inventors: Henricus A. C. Thijssen, Gerardus J. Arkenbout