Patents by Inventor Martin Oldemeyer

Martin Oldemeyer 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 aldehydes and cooling a stream of matter
    Patent number: 11773041
    Abstract: A process for preparing aldehydes by a homogeneously catalyzed hydroformylation of C4 to C20 olefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream in a three-stage removal.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: October 3, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Frank Geilen, Alexander Brächer, Stefan Drees, Benedikt Dereks, Robert Franke, Ana Markovic, Armin Matthias Rix, Martin Oldemeyer, Dirk Fridag
  • PROCESS FOR PREPARING ALDEHYDES AND COOLING A STREAM OF MATTER
    Publication number: 20230159425
    Abstract: A process for preparing aldehydes by a homogeneously catalyzed hydroformylation of C4 to C20 olefins involves withdrawing a biphasic stream (liquid/gaseous) and expanding in two stages. Before, between, or after the two stages, the liquid phase is cooled. Only after expansion and cooling is the homogeneously dissolved rhodium catalyst system separated from the residual stream in a three-stage removal.
    Type: Application
    Filed: November 16, 2022
    Publication date: May 25, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Frank Geilen, Alexander Brächer, Stefan Drees, Benedikt Dercks, Robert Franke, Ana Markovic, Armin Matthias Rix, Martin Oldemeyer, Dirk Fridag
  • TWO-STAGE OFFGAS SCRUBBING
    Publication number: 20220226768
    Abstract: The invention provides a process for removing organic constituents from a gas stream in a two-stage scrubbing operation, in which scrubbing is performed firstly with an alcoholic scrubbing medium and then with an aqueous scrubbing medium. The laden scrubbing media obtained can be used in certain (chemical) processes.
    Type: Application
    Filed: December 22, 2021
    Publication date: July 21, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Stephan Peitz, Guido Stochniol, Martin Oldemeyer, Matthias Böse