Patents Assigned to Linotek Oy
  • Method for washing of crude tall oil soap from the sulfate pulping process
    Patent number: 4248769
    Abstract: A method for washing of crude tall oil soap obtained from the sulfate pulping process using alkalized spent acid from tall oil acidulation as washing liquid by mixing the crude soap and the washing liquid coming from the process and by cooling the mixture in a separation tank by either stirring with a slowly moving agitator or by circulating the soap or soap mixture through a pump and a cooler.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: February 3, 1981
    Assignee: Linotek Oy
    Inventor: Ake A. Johansson