Patents by Inventor Robert A. Maggio

Robert A. Maggio has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for synthesizing a zeolite catalyst on a pH controlled basis to improve catalyst life
    Patent number: 4804800
    Abstract: A process for preparing a zeolite, e.g. ZSM-5, under controlled conditions of initial pH adjustment with an acid, SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio, and in the presence of sodium cations, is disclosed, as well as a process for using the same to synthesize olefins from methanol and/or dimethyl ether.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: February 14, 1989
    Assignee: Exxon Research & Engineering Co.
    Inventors: Arie Bortinger, Robert A. Maggio, Wim J. M. Pieters
  • Process for synthesizing a zeolite catalyst on a pH controlled basis to improve catalyst life
    Patent number: 4764356
    Abstract: A process for preparing a zeolite, e.g. ZSM-5, under controlled conditions of initial pH adjustment with an acid, SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio, and in the presence of sodium cations, is disclosed, as well as a process for using the same to synthesize olefins from methanol and/or dimethyl ether.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: August 16, 1988
    Assignee: Exxon Research & Engineering Co.
    Inventors: Arie Bortinger, Robert A. Maggio, Wim J. M. Pieters