Patents by Inventor Paul Randolph Worsham

Paul Randolph Worsham 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).

  • Patent number: 7538060
    Abstract: Disclosed are catalysts comprising copper chromite, palladium and lanthanum having hydrogenation activity. The combination of copper chromite with palladium and lanthanum enhances catalyst activity more than the presence of either palladium alone or palladium in combination with alkali or alkaline earth metals. The catalysts are useful for the preparation of methanol from carbon monoxide and hydrogen and for the hydrogenation of carbonyl compounds such as, for example, aldehydes, ketones, and esters, to their corresponding alcohols. The catalysts may be used for the preparation of cyclohexanedimethanols from dialkyl cyclohexanedicarboxylates or of ethylene glycol from alkyl glycolates.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 26, 2009
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Bruce LeRoy Gustafson, Zhufang Liu, Steven Thomas Perri, Paul Randolph Worsham
  • Publication number: 20080194397
    Abstract: Disclosed are catalysts comprising copper chromite, palladium and lanthanum having hydrogenation activity. The combination of copper chromite with palladium and lanthanum enhances catalyst activity more than the presence of either palladium alone or palladium in combination with alkali or alkaline earth metals. The catalysts are useful for the preparation of methanol from carbon monoxide and hydrogen and for the hydrogenation of carbonyl compounds such as, for example, aldehydes, ketones, and esters, to their corresponding alcohols. The catalysts may be used for the preparation of cyclohexanedimethanols from dialkyl cyclohexanedicarboxylates or of ethylene glycol from alkyl glycolates.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 14, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, BRUCE LEROY GUSTAFSON, ZHUFANG LIU, STEVEN THOMAS PERRI, PAUL RANDOLPH WORSHAM
  • Publication number: 20080194398
    Abstract: Disclosed are catalysts comprising copper chromite, ruthenium and at least one promoter selected from alkali metals, alkaline earth metals, rare earth elements having hydrogenation activity. The combination of copper chromite with ruthenium and the alkali, alkaline earth, and/or rare earth elements enhances catalyst activity more than the addition of either type of promoter alone. The catalysts are useful for the preparation of methanol from carbon monoxide and hydrogen and for the hydrogenation of carbonyl compounds such as, for example, aldehydes, ketones, and esters, to their corresponding alcohols. The catalysts may be used for the preparation of cyclohexanedimethanols from dialkyl cyclohexanedicarboxylates or of ethylene glycol from alkyl glycolates.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 14, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, BRUCE LEROY GUSTAFSON, ZHUFANG LIU, STEVEN THOMAS PERRI, PAUL RANDOLPH WORSHAM