Patents by Inventor Ivo Spaargaren

Ivo Spaargaren 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 the production of a cycloalkanone and/or a cycloalkanol
    Patent number: 5334768
    Abstract: The invention relates to a process for the preparation of cycloalkanone and optionally cycloalkanol by causing a mixture containing cycloalkylhydroperoxide to react with cycloalkene under the influence of a catalyst, characterised in that the reaction is carried out with a short measure of cycloalkene relative to the cycloalkylhydroperoxide, under such conditions that virtually all of the cycloalkene reacts to cycloalkene oxide and optionally cycloalkanol and/or cycloalkanone, after which the mixture, optionally after decomposition of cycloalkylhydroperoxide and distillation of cycloalkane, is subjected to a first separation, in which cycloalkene oxide--and optionally other components--is separated, after which the cycloalkene oxide in the separated mixture is isomerised to substantially cycloalkanone, after which the cycloalkanone obtained--and optionally cycloalkanol--is recovered.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: August 2, 1994
    Assignee: DSM N.V.
    Inventors: Johannes G. van Hinsberg, Cornelis G. M. van de Moesdijk, Ivo Spaargaren, Otto E. Sielcken