Patents by Inventor Elliott V. Nagle, Jr.

Elliott V. Nagle, Jr. 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).

  • Catalyst comprising potassium and cesium pyrosulfates with vanadium pentoxide and anatase
    Patent number: 4931418
    Abstract: Catalyst compositions are disclosed containing potassium pyrosulfate, cesium pyrosulfate, supported on an inorganic oxide. The catalysts will selectively oxidize naphthalene and/or o-xylene to phthalic anhydride in a fluidized- or fixed-bed reactor system. Sulfur-containing gaseous promoter may be fed with the aromatic hydrocarbon to enhance selectivity.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: June 5, 1990
    Assignee: Aristech Chemical Corporation
    Inventors: Leonard A. Cullo, Elliott V. Nagle, Jr., Edward F. Restelli, Jr., Thomas J. Yogan
  • Process for the oxidation of aromatic hydrocarbons
    Patent number: 4912234
    Abstract: Catalyst compositions are disclosed containing potassium pyrosulfate, cesium pyrosulfate, supported on an inorganic oxide. The catalysts will selectively oxidize naphthalene and/or o-xylene to phthalic anhydride in a fluidized- or fixed-bed reactor system. Sulfur-containing gaseous promoter may be fed with the aromatic hydrocarbon to enhance selectivity.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: March 27, 1990
    Assignee: Aristech Chemical Corporation
    Inventors: Leonard A. Cullo, Elliott V. Nagle, Jr., Edward F. Restelli, Jr., Thomas J. Yogan
  • Method of making anatase-titania attrition-resistant catalyst composition
    Patent number: 4705770
    Abstract: A method is disclosed for preparing titania-containing catalysts and catalyst supports that are fluidizable and attrition-resistant. By the method, a fluidizable substrate is impregnated with titanyl sulfate or a related compound. The compositions may be used to advantage in applications requiring titania-bearing catalysts or titania supports and are particularly useful in preparing fluid bed catalysts for the oxidation of o-xylene and naphthalene to phthalic anhydride.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: November 10, 1987
    Assignee: Aristech Chemical Corporation
    Inventors: Leonard A. Cullo, Elliott V. Nagle, Jr., Edward F. Restelli, Jr., Thomas J. Yogan