Patents by Inventor Robert Alfred Plundo

Robert Alfred Plundo 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 and process for preparing 1,3-propanediol
    Patent number: 6342464
    Abstract: A solid, particulate catalyst composition is provided containing an active nickel component in which the nickel constitutes from about 25 to about 60 wt % of the catalyst composition; a molybdenum component in which the molybdenum constitutes from about 5 to about 20 wt % of the catalyst composition; and a binder component comprising at least one of oxides of silica, zirconium, aluminum, zinc and calcium, each of the calcium, aluminum and zinc being present in an amount no greater than about 2 wt %, preferably about 0 to 1 wt %. The catalyst is designed for the selective hydrogenation of 3-hydroxypropanal to 1,3-propanediol in aqueous solution.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: January 29, 2002
    Assignee: Shell Oil Company
    Inventors: Juan Pedro Arhancet, Paul Himelfarb, Joseph Broun Powell, Robert Alfred Plundo, Mohammed Shahjahan Kazi, William Joseph Carrick
  • Catalyst and process for preparing 1,3-propanediol
    Patent number: 5945570
    Abstract: A solid, particulate catalyst composition is provided containing an active nickel component in which the nickel constitutes from about 25 to about 60 wt % of the catalyst composition; a molybdenum component in which the molybdenum constitutes from about 5 to about 20 wt % of the catalyst composition; and a binder component comprising at least one of oxides of silica, zirconium, aluminum, zinc and calcium, each of the calcium, aluminum and zinc being present in an amount no greater than about 2 wt %, preferably about 0 to 1 wt %. The catalyst is designed for the selective hydrogenation of 3-hydroxypropanal to 1,3-propanediol in aqueous solution.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 31, 1999
    Inventors: Juan Pedro Arhancet, Paul Himelfarb, Joseph Broun Powell, Robert Alfred Plundo, Mohammed Shahjahan Kazi, William Joseph Carrick