Patents by Inventor Hermann-Josef Schulte-Althoff

Hermann-Josef Schulte-Althoff 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).

  • Economical production of 2-propylheptanol
    Patent number: 10227278
    Abstract: The production of 2-propylheptanol described here is effected via Rh-catalyzed hydroformylation of C4-olefin to afford C5-aldehyde, aldol condensation to afford the C10-aldehyde and hydrogenation to afford the C10-alcohol. The emphasis is on the hydroformylation and the ligand employed therein. The problem addressed by the invention is that of reducing the costs of 2PH production. This problem is solved when a cheaper catalyst system which simultaneously achieves a better regioselectivity is employed in the hydroformylation.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 12, 2019
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Katrin Marie Dyballa, Robert Franke, Dirk Fridag, Markus Schwarz, Hermann-Josef Schulte-Althoff, Frank Geilen
  • ECONOMICAL PRODUCTION OF 2-PROPYLHEPTANOL
    Publication number: 20180319727
    Abstract: The production of 2-propylheptanol described here is effected via Rh-catalyzed hydroformylation of C4-olefin to afford C5-aldehyde, aldol condensation to afford the C10-aldehyde and hydrogenation to afford the C10-alcohol. The emphasis is on the hydroformylation and the ligand employed therein. The problem addressed by the invention is that of reducing the costs of 2PH production. This problem is solved when a cheaper catalyst system which simultaneously achieves a better regioselectivity is employed in the hydroformylation.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 8, 2018
    Applicant: Evonik Degussa GmbH
    Inventors: Katrin Marie DYBALLA, Robert FRANKE, Dirk FRIDAG, Markus SCHWARZ, Hermann-Josef SCHULTE-ALTHOFF, Frank GEILEN
  • Process for preparing Caldehyde mixtures with a high n-pentanal content
    Patent number: 8461394
    Abstract: A process for preparing a C5 aldehyde mixture from a hydrocarbon mixture comprising at least one linear butene by terminal hydroformylation under isomerizing conditions, using a catalyst system comprising rhodium, a bisphosphite ligand, and an amine.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: June 11, 2013
    Assignee: Evonik Oxeno GmbH
    Inventors: Hans-Gerd Lueken, Dirk Fridag, Udo Lenz, Hermann-Josef Schulte-Althoff, Klaus-Diether Wiese, Alfred Kaizik, Patrick Muhlack, Wilfried Bueschken, Frank Hoeper
  • PROCESS FOR PREPARING C5 ALDEHYDE MIXTURES WITH A HIGH N-PENTANAL CONTENT
    Publication number: 20110130595
    Abstract: A process for preparing a C5 aldehyde mixture from a hydrocarbon mixture comprising at least one linear butene by terminal hydroformylation under isomerizing conditions, using a catalyst system comprising rhodium, a bisphosphite ligand, and an amine.
    Type: Application
    Filed: April 28, 2009
    Publication date: June 2, 2011
    Applicant: Evonik Oxeno GmbH
    Inventors: Hans-Gerd Lueken, Dirk Fridag, Udo Lenz, Hermann-Josef Schulte-Althoff, Klaus-Diether Wiese, Alfred Kaizik, Patrick Muhlack, Wilfried Bueschken, Frank Hoeper
  • Method for the rhodium-catalyzed hydroformylation of olefins with reduction of rhodium losses
    Patent number: 7232931
    Abstract: Process for preparing aldehydes and alcohols by rhodium-catalyzed hydroformylation of olefins having 6–20 carbon atoms with subsequent separation by distillation of the output from the hydroformylation reaction into the hydroformylation products and a rhodium-containing solution and recirculation of this solution to the hydroformylation reaction, wherein the rhodium concentration of the recirculated rhodium-containing solution is 20–150 ppm by mass.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: June 19, 2007
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Walter Toetsch, Alfred Kaizik, Hermann-Josef Schulte-Althoff
  • Method for the rhodium-catalyzed hydroformylation of olefins with reduction of rhodium losses
    Publication number: 20050182277
    Abstract: Process for preparing aldehydes and alcohols by rhodium-catalyzed hydroformylation of olefins having 6-20 carbon atoms with subsequent separation by distillation of the output from the hydroformylation reaction into the hydroformylation products and a rhodium-containing solution and recirculation of this solution to the hydroformylation reaction, wherein the rhodium concentration of the recirculated rhodium-containing solution is 20-150 ppm by mass.
    Type: Application
    Filed: December 5, 2002
    Publication date: August 18, 2005
    Applicant: Oxen Olefinchemie GMBH
    Inventors: Walter Totsch, Alfred Kaizik, Hermann-Josef Schulte-Althoff