Patents Assigned to Dr. Eckert GmbH
  • Method and device for the production of phosgene from diphosgene and/or triphosgene
    Patent number: 6399822
    Abstract: The invention concerns a method for preparing phosgene from diphosgene and/or triphosgene, by reaction on a catalyst comprising one or several compounds with one or several nitrogen atoms with a pair of deactivated electrons. The invention further concerns a device for preparing phosgene from diphosgene and/or triphosgene, for implementing said method.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: June 4, 2002
    Assignee: Dr. Eckert GmbH
    Inventors: Heiner Eckert, Bernhard Gruber, Norbert Dirsch