Patents by Inventor Stefan MÜNZNER

Stefan MÜNZNER 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 obtaining alcohols from aldehydes
    Patent number: 10577297
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the separation of the Cn-alcohols and the C2n-alcohols is effected by means of at least one two-column system or by means of at least one dividing wall column.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: March 3, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Method for obtaining alcohols from aldehydes III
    Patent number: 10562833
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the ratio of Cn- to C2n-alcohols is controlled by a distillative separation of the aldehydes used.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: February 18, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Method for obtaining alcohols from aldehydes II
    Patent number: 10501392
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the ratio of Cn- to C2n-alcohols is controlled by the diversion of substreams in individual method steps.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 10, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Method for obtaining alcohols from aldehydes II
    Publication number: 20190169104
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the ratio of Cn- to C2n-alcohols is controlled by the diversion of substreams in individual method steps.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Method for obtaining alcohols from aldehydes
    Publication number: 20190169106
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the separation of the Cn-alcohols and the C2n-alcohols is effected by means of at least one two-column system or by means of at least one dividing wall column.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Method for obtaining alcohols from aldehydes III
    Publication number: 20190169105
    Abstract: The present invention relates to a method for preparing saturated Cn- and C2n-alcohols, wherein the ratio of Cn- to C2n-alcohols is controlled by a distillative separation of the aldehydes used.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventors: Dirk Fridag, Robert Franke, Michael Grass, Florian Boeck, Corinna Hecht, Benedikt Dercks, Udo Lenz, Christoph Hiller, Christoph Ehlers, Stefan Münzner
  • Process for purifying an ionic liquid
    Patent number: 10138209
    Abstract: The invention relates to a process for purifying an ionic liquid comprising dialkylimidazolium ions by means of stripping, wherein water vapor is used at a particular temperature. The process according to the invention is characterized in that the decomposition of the ionic liquid is minimized during the procedure of the process.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 27, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Matthias Bahlmann, Olivier Zehnacker, Markus Lütkehaus, Benjamin Willy, Werner Escher, Xinming Wang, Rolf Schneider, Christoph Hiller, Stefan Münzner
  • METHOD OF PREPARING A HIGH PURITY IMIDAZOLIUM SALT
    Publication number: 20170355682
    Abstract: The present invention encompasses a novel method for synthesizing highly pure salts of the general formula Q+A?, wherein the starting materials are reacted in the presence of water, and wherein Q+ is and wherein A? is
    Type: Application
    Filed: June 12, 2017
    Publication date: December 14, 2017
    Applicant: Evonik Degussa GmbH
    Inventors: Benjamin WILLY, Olivier ZEHNACKER, Rolf SCHNEIDER, Xinming WANG, Werner ESCHER, Stefan MÜNZNER, Christoph HILLER
  • PROCESS FOR PURIFYING AN IONIC LIQUID
    Publication number: 20170355681
    Abstract: The invention relates to a process for purifying an ionic liquid comprising dialkylimidazolium ions by means of stripping, wherein water vapour is used at a particular temperature. The process according to the invention is characterized in that the decomposition of the ionic liquid is minimized during the procedure of the process.
    Type: Application
    Filed: April 13, 2017
    Publication date: December 14, 2017
    Inventors: Matthias BAHLMANN, Olivier ZEHNACKER, Markus LÜTKEHAUS, Benjamin WILLY, Werner ESCHER, Xinming WANG, Rolf SCHNEIDER, Christoph HILLER, Stefan MÜNZNER