Patents Assigned to Union Caride Corporation
  • Urea rejuvenation of catalysts
    Patent number: 4645750
    Abstract: A spent catalyst comprising a zeolite base and an active metal such as a Group VIII noble metal is rejuvenated by contacting the catalyst with an aqueous solution containing urea.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: February 24, 1987
    Assignee: Union Caride Corporation
    Inventor: Donald F. Best