Patents by Inventor Ana Markovic

Ana Markovic 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 separation of the catalyst system by membrane separation
    Patent number: 11396488
    Abstract: The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: July 26, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Alexander Brächer, Johannes Knossalla, Dirk Fridag, Robert Franke, Frederik Gluth, Marc Schäpertöns, Christoph Kubis, Anna Chiara Sale, Peter Kucmierczyk, Ana Markovic
  • PROCESS FOR ALKOXYCARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS USING BENZENE-BASED DIPHOSPHINE LIGANDS AND ALUMINIUM TRIFLATE
    Publication number: 20220162150
    Abstract: Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate.
    Type: Application
    Filed: November 19, 2021
    Publication date: May 26, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Peter KUCMIERCZYK, Ricarda DÜHREN, Dirk FRIDAG, Johannes KNOSSALLA, Anna Chiara SALE, Ana MARKOVIC, Alexander BRÄCHER, Matthias BELLER, Robert FRANKE
  • PROCESS FOR PREPARING ALDEHYDES AND SEPARATION OF THE CATALYST SYSTEM BY MEMBRANE SEPARATION
    Publication number: 20220033337
    Abstract: The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.
    Type: Application
    Filed: July 9, 2021
    Publication date: February 3, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Alexander Brächer, Johannes Knossalla, Dirk Fridag, Robert Franke, Frederik Gluth, Marc Schäpertöns, Christoph Kubis, Anna Chiara Sale, Peter Kucmierczyk, Ana Markovic