Patents by Inventor Marcel de Vreede

Marcel de Vreede 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).

  • Publication number: 20060116530
    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: June 16, 2005
    Publication date: June 1, 2006
    Inventors: Alan Wonders, Robert Lin, Lee Partin, Marcel de Vreede, Wayne Strasser
  • Publication number: 20060084824
    Abstract: The present invention relates to a process for oxidizing a slurry composition in a post oxidation zone in the presence of added steam. More specifically, the present invention relates to a process for oxidizing a crude terephthalic acid composition in a post oxidation zone in the presence of added steam in a process for the production of a crystallized post oxidation composition.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 20, 2006
    Inventors: Robert Lin, Marcel de Vreede, Johannes Sluijmers, Martin De Boer, Thomas Woodruff
  • Publication number: 20060047142
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Howard Jenkins, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047159
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Robert Lin, Marcel de Vreede, Lee Partin
  • Publication number: 20060047164
    Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically producing aromatic discarboxylic acids.
    Type: Application
    Filed: July 14, 2005
    Publication date: March 2, 2006
    Inventors: Robert Lin, Marcel de Vreede
  • Publication number: 20060047149
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Marcel de Vreede, Lee Partin, Wayne Strasser
  • Publication number: 20060047160
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Marcel de Vreede, Lee Partin, Wayne Strasser
  • Publication number: 20060047143
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Puneet Gupta, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047144
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Marcel de Vreede, Lee Partin, Wayne Strasser
  • Publication number: 20060047157
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Howard Jenkins, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047147
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Wayne Strasser, Marcel de Vreede, J. Tidwell
  • Publication number: 20060047163
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Marcel de Vreede, Alan Wonders, Robert Lin
  • Publication number: 20060047145
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Marcel de Vreede, Lee Partin, Wayne Strasser
  • Publication number: 20060047151
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047162
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Howard Jenkins, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047146
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Lee Partin, Wayne Strasser, Marcel de Vreede, Puneet Gupta
  • Publication number: 20060047161
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047154
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Lee Partin, Wayne Strasser, Marcel de Vreede
  • Publication number: 20060047158
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Lee Partin, Wayne Strasser, Marcel de Vreede, Puneet Gupta
  • Publication number: 20060047156
    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: June 16, 2005
    Publication date: March 2, 2006
    Inventors: Alan Wonders, Marcel de Vreede, Lee Partin, Wayne Strasser, Puneet Gupta