Patents Assigned to A/S Phonix Contractors
  • Method for decontaminating a material and an assembly for carrying out said method
    Patent number: 4985083
    Abstract: A method and an assembly for decontaminating a material. The material is charged into a container, where at first steam is introduced and fluids including some contaminants are removed. Then extractant is introduced into the container, and fluids comprising condensation water, extractant and contaminants are removed. Then the material is stripped with vapor. The dry or slightly humid material in the container is removed in a condition suitable for return to its place of origin. The used extractant can be purified to be re-used.
    Type: Grant
    Filed: January 4, 1989
    Date of Patent: January 15, 1991
    Assignee: A/S Phonix Contractors
    Inventor: Dennis Sogaard