Patents Assigned to Kamyr Atkiebolag
  • Process for bleaching pulp with adsorption of metals
    Patent number: 5462641
    Abstract: A process for bleaching pulp, in which, after fiber liberation, a first filtrate containing metals, principally in ionic form, is separated off from the pulp, and supplied downstream to the pulp flow after a bleaching stage.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: October 31, 1995
    Assignee: Kamyr Atkiebolag
    Inventors: Anders Bergvist, Hakan Dahllof