Patents by Inventor J. Thomas Tidwell

J. Thomas Tidwell 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).

  • Optimized liquid-phase oxidation
    Patent number: 7741515
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: June 22, 2010
    Assignee: Eastman Chemical Company
    Inventors: Alan George Wonders, Wayne Scott Strasser, Marcel de Vreede, J Thomas Tidwell
  • Optimized liquid-phase oxidation
    Patent number: 7659427
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: February 9, 2010
    Assignee: Eastman Chemical Company
    Inventors: Alan George Wonders, Wayne Scott Strasser, Marcel de Vreede, J. Thomas Tidwell
  • Optimized liquid-phase oxidation
    Publication number: 20080242887
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
    Type: Application
    Filed: May 7, 2008
    Publication date: October 2, 2008
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Alan George Wonders, Wayne Scott Strasser, Marcel de Vreede, J. Thomas Tidwell