Patents by Inventor John A. Dreibelbis

John A. Dreibelbis 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).

  • Silica catalyst supports for hydration of ethylene to ethanol
    Patent number: 4937394
    Abstract: Novel, composited silica catalyst supports suitable for commercial utilization, which may typically have an average pore diameter in the range of about 100 to about 5000 Angstroms, an advantageously high surface area in the range of about 30 to about 125 square meters per gram and a bulk density in the range of about 0.3 to about 0.6 gram per cubic centimeter, are made by mixing amorphous silica powder having an average particle size in the range of about 10 to about 50 millimicrons with a medium suitable for binding the silica powder. The mixture of silica powder and binder is formed into suitable, macrosized catalyst support shapes by press molding, extrusion, tableting and like forming means. The shaped mixture of silica powder and binder is calcined to form the novel silica catalyst supports.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 26, 1990
    Assignee: Mallinckrodt, Inc.
    Inventor: John A. Dreibelbis
  • Silica catalyst supports
    Patent number: 4783435
    Abstract: Novel, composited silica catalyst supports suitable for commercial utilization, which may typically have an average pore diameter in the range of about 100 to about 5000 Angstroms, an advantageously high surface area in the range of about 20 to about 125 square meters per gram and a bulk density in the range of about 0.3 to about 0.6 gram per cubic centimeter, are made by mixing amorphous silica powder having an average particle size in the range of about 10 to about 50 millimicrons with a medium suitable for binding the silica powder. The mixture of silica powder and binder is formed into suitable, macrosized catalyst support shapes by press molding, extrusion, tableting and like forming means. The shaped mixtue of silica powder and binder is calcined to form the novel silica catalyst supports.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: November 8, 1988
    Assignee: Mallinckrodt, Inc.
    Inventor: John A. Dreibelbis
  • Silica catalyst supports
    Patent number: 4617060
    Abstract: Novel, composited silica catalyst supports suitable for commercial utilization, which may typically have an average pore diameter in the range of about 100 to about 5000 Angstroms, an advantageously high surface area in the range of about 30 to about 125 square meters per gram and a bulk density in the range of about 0.3 to about 0.6 gram per cubic centimeter, are made by mixing amorphous silica powder having an average particle size in the range of about 10 to about 50 millimicrons with a medium suitable for binding the silica powder. The mixture of silica powder and binder is formed into suitable, macrosized catalyst support shapes by press molding, extrusion, tableting and like forming means. The shaped mixture of silica powder and binder is calcined to form the novel silica catalyst supports.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: October 14, 1986
    Assignee: Mallinckrodt, Inc.
    Inventor: John A. Dreibelbis