Patents by Inventor Willem Voskuil

Willem Voskuil 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).

  • Process for preparing cycloalkanones and cycloalkanols
    Patent number: 3941845
    Abstract: Cycloalkanones and cycloalkanols can be prepared by conversion of cycloalkylhydroperoxides in solution in a suitable solvent, under the influence of a solid catalyst, Solution and catalyst form a heterogeneous system. For this purpose, a number of catalysts have been proposed, but the known processes have serious draw backs with respect to efficiency of the process, catalyst cost and/or alcohol to ketone ratio obtained.According to the invention, cycloalkanones and cycloalkanols are prepared by conversion of cycloalkylhydroperoxides having 5-12 carbon atoms in the ring under the influence of a heterogeneous catalyst comprising copper oxide, at a temperature below 160.degree.C. Preferably, copper - chromium - oxide is applied as a catalyst.
    Type: Grant
    Filed: October 19, 1973
    Date of Patent: March 2, 1976
    Assignee: Stamicarbon, B.V.
    Inventors: Willem Voskuil, Joseph J. M. VAN DER Donck