Patents Assigned to Oxeno Olefinchemie GmbH
  • Process for the hydroformylation of olefins
    Publication number: 20010003785
    Abstract: Aldehydes are prepared in a hydroformylation apparatus by the multiphase hydroformylation reaction of one or more olefins with hydrogen and carbon monoxide, where the continuous phase contains a solvent mixture and the hydroformylation catalyst is present in the continuous phase, at least one olefin is present in the dispersed phase, and the loading factor of the tube reactor is greater than or equal to 0.8.
    Type: Application
    Filed: November 30, 2000
    Publication date: June 14, 2001
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Guido Protzmann, Klaus-Diether Wiese, Wilfried Buschken, Dirk Rottger
  • Process for the selective hydrogenation of hydroformylation mixtures
    Patent number: 6239318
    Abstract: The invention relates to a process for the selective hydrogenation of reaction mixtures from the hydroformylation of C5 to C24 olefins using hydrogen and a supported catalyst which, as active components, comprises copper, nickel and chromium.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: May 29, 2001
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Joachim Schuler, Alfred Kaizik, Bernhard Scholz, Wilfried Bueschken, Wilhelm Droste
  • Process for the hydrogenation of hydroformylation mixtures
    Patent number: 6184424
    Abstract: A process for the hydrogenation of reaction mixtures from the hydroformylation of C5 to C24 olefins using hydrogen on fixed catalysts at elevated temperature, in which the aldehydes, alcohols, formates and low-boilers are evaporated from the reaction mixture and passed in the vapor state over a support-free Cu/Cr catalyst.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: February 6, 2001
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Wilfried Bueschken, Dietmar Gubisch