Patents by Inventor Marcel Vreede

Marcel 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).

  • Modeling of liquid-phase oxidation
    Publication number: 20060116531
    Abstract: Disclosed is an optimized process for more effectively and efficiently modeling liquid-phase oxidation in a bubble column reactor.
    Type: Application
    Filed: November 10, 2005
    Publication date: June 1, 2006
    Inventors: Alan Wonders, Wayne Strasser, Puneet Gupta, Lee Partin, Marcel Vreede
  • Optimized production of aromatic dicarboxylic acids
    Publication number: 20060047165
    Abstract: Disclosed is an optimized process and apparatus for more efficiently producing aromatic dicarboxylic acids (e.g., terephthalic acid). In one embodiment the process/apparatus reduces costs by recovering and purifying residual terephthalic acid present in the liquid phase of an initial oxidation slurry. In another embodiment the process apparatus reduces costs associated with hydrogenation by forming a final composite product containing unhydrogenated acid particles.
    Type: Application
    Filed: July 14, 2005
    Publication date: March 2, 2006
    Inventors: Robert Lin, Marcel Vreede