Patents Represented by Attorney Frank J. Stroka

Find this attorney in the Justia Lawyer Directory

  • Multistage alkylation process
    Patent number: 5849965
    Abstract: In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a diluent in the secondary stage. The alkylation reaction in each stage is catalyzed by an acid catalyst which is adsorbed on a particulate solid support.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 15, 1998
    Assignee: Amoco Corporation
    Inventors: Robert L. Mehlberg, George A. Huff, Jr.