Patents by Inventor Charles A. Dalton

Charles A. Dalton 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 the oxidation of olefinically unsaturated hydrocarbons to aldehydes using attrition resistant catalysts
    Patent number: 4332971
    Abstract: Olefin oxidation catalysts having improved attrition resistance are produced by incorporating a substantially uniform-appearing coating of a partially calcined catalytic material onto an inert porous support containing sorbed aqueous silica sol and then completing the calcination of the catalyst. Such catalysts are useful in a variety of exothermic chemical processes, including vapor phase oxidation of olefinically unsaturated hydrocarbons to the corresponding unsaturated aldehydes, especially propylene to acrolein.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: June 1, 1982
    Assignee: Celanese Corporation
    Inventors: Charles A. Dalton, William E. Slinkard
  • Process for the catalytic conversion of olefinically unsaturated aldehydes to their corresponding acids
    Patent number: 4317927
    Abstract: Catalysts having improved attrition resistance are produced by incorporating a substantially uniform appearing coating of completely calcined, catalytically active oxide material onto an inert porous support containing sorbed aqueous silica sol. Such catalysts are useful in the gas phase oxidation of unsaturated aldehydes to unsaturated acids, especially acrolein to acrylic acid.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: March 2, 1982
    Assignee: Celanese Corporation
    Inventors: Charles A. Dalton, William E. Slinkard
  • Attrition resistant catalysts
    Patent number: 4276196
    Abstract: Olefin oxidation catalysts having improved attrition resistance are produced by incorporating a substantially uniform-appearing coating of a partially calcined catalytic material onto an inert porous support containing sorbed aqueous silica sol and then completing the calcination of the catalyst. Such catalysts are useful in a variety of exothermic chemical processes, including vapor phase oxidation of olefinically unsaturated hydrocarbons to the corresponding unsaturated aldehydes, especially propylene to acrolein.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: June 30, 1981
    Assignee: Celanese Corporation
    Inventors: Charles A. Dalton, William E. Slinkard
  • Attrition resistant catalysts
    Patent number: 4251393
    Abstract: Catalysts having improved attrition resistance are produced by incorporating a substantially uniform appearing coating of completely calcined, catalytically active oxide material onto an inert porous support containing sorbed aqueous silica sol. Such catalysts are useful in the gas phase oxidation of unsaturated aldehydes to unsaturated acids, especially acrolein to acrylic acid.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: February 17, 1981
    Assignee: Celanese Corporation
    Inventors: Charles A. Dalton, William E. Slinkard