Patents Assigned to Halcon Research and Development Corporation
  • Process for recovery of ethylene oxide containing low levels of aldehydic impurities
    Patent number: 4134797
    Abstract: A process for the recovery of ethylene oxide containing low levels of aldehydic impurities from an impure aqueous ethylene oxide solution containing the same is provided in which the impure solution is treated in a novel multi-stage, countercurrent distillation zone for improved separation of said aldehydic impurities and recovery of an ethylene oxide-containing product stream having the desired low concentration of aldehydic impurities.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: January 16, 1979
    Assignee: Halcon Research & Development Corporation
    Inventor: Brian J. Ozero