Patents Assigned to Calumet Petrochemicals, Inc.
  • Phenol alkylation
    Patent number: 4055605
    Abstract: Monoalkylphenols are made by passing a mixture of phenol and an olefin of 8-18 carbon atoms through a catalyst bed at 250.degree.-350.degree. F. The catalyst is a granular activated clay and the mol ratio of phenol to olefin charged exceeds 2.0.
    Type: Grant
    Filed: January 2, 1973
    Date of Patent: October 25, 1977
    Assignee: Calumet Petrochemicals, Inc.
    Inventor: Charles L. Jarreau, Sr.