Patents by Inventor Dirk Deynse

Dirk Deynse 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).

  • Method for the preparation of halogenated benzonitriles
    Publication number: 20050176984
    Abstract: The present invention relates to a method for preparing halogenated benzonitriles by vapor phase ammoxidation at a reaction temperature in the range of 300 to 500° C. in a fixed bed reactor using a three-component catalyst. More particularly, the method of the invention relates to a method for preparing 2,6-dichlorobenzonitrile (2,6-DCBN) from 2,6-dichlorotoluene (2,6-DCT) by vapor phase ammoxidation. The invention also relates to a three-component catalyst provided on a carrier and its use in a vapor phase ammoxidation reaction according to the invention. In addition, the invention provides a method for preparing the three-component catalyst.
    Type: Application
    Filed: June 3, 2003
    Publication date: August 11, 2005
    Inventors: Andreas Martin, Venkata Kalevaru, Bernhard Lucke, Dirk Deynse, Marc Belmans, Frank Boers