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).

  • Publication number: 20250236605
    Abstract: Alkyl picolyl ligands and use thereof in alkoxycarbonylation.
    Type: Application
    Filed: January 17, 2025
    Publication date: July 24, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Stefan Müller, Peter Kucmierczyk, Dirk Fridag, Julia Büker, Ana Markovic, Roland Peschke, Vincent Bürk, Maximilian Wessner, Marius Bilke, Robert Franke
  • Publication number: 20250197334
    Abstract: A process reacts olefins having 4 to 20 carbon atoms and the feed stream used, containing at least linear olefins and branched olefins, is first separated into two streams A and B. Stream A is distilled before the reaction and only the high-boiler phase obtained in this distillation is subjected to the reaction, a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.
    Type: Application
    Filed: December 10, 2024
    Publication date: June 19, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Alexander Brächer, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Johannes Knossalla, Peter Kucmierczyk
  • Publication number: 20250197335
    Abstract: A process reacts dibutene and the feed stream used, containing at least linear isomers and branched isomers of the olefins used, is distilled before the reaction and only the high-boiler phase obtained in this distillation is subjected to the reaction, which is a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.
    Type: Application
    Filed: December 11, 2024
    Publication date: June 19, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Alexander Brächer, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Johannes Knossalla, Peter Kucmierczyk
  • Publication number: 20250197743
    Abstract: A process reacts olefins having 4 to 20 carbon atoms and the feed stream used, containing at least linear olefins and branched olefins, is distilled between two reaction steps and only the high-boiler phase obtained in this distillation is subjected to the second reaction, a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.
    Type: Application
    Filed: December 11, 2024
    Publication date: June 19, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Alexander Brächer, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Johannes Knossalla, Peter Kucmierczyk
  • Publication number: 20250197333
    Abstract: A process reacts C11 to C20 olefins and the feed stream used, containing at least linear isomers and branched isomers of the olefins used, is distilled before the reaction and only the high-boiler phase obtained in this distillation is subjected to the reaction, which is a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.
    Type: Application
    Filed: December 10, 2024
    Publication date: June 19, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Alexander Brächer, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Johannes Knossalla, Peter Kucmierczyk
  • Publication number: 20250026706
    Abstract: The invention provides a process for alkoxycarbonylation of diisobutene and a C4 to C7 olefin in a common reaction zone. The alkoxycarbonylation is carried out with an alcohol and carbon monoxide in the presence of a homogeneous catalyst system that comprises at least one metal from group 8 to 10 of the periodic table of the elements or a compound thereof, a phosphorus-containing ligand and an acid.
    Type: Application
    Filed: July 19, 2024
    Publication date: January 23, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Maren Termühlen, Annika Reinhardt, Armin Matthias Rix, Robert FRANKE, Dirk Fridag, Anna Chiara Sale, Ana Markovic
  • Publication number: 20250011354
    Abstract: Process for preparing diphosphites and the compounds used for the preparation.
    Type: Application
    Filed: June 26, 2024
    Publication date: January 9, 2025
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic
  • Publication number: 20240417345
    Abstract: A process isomerizes 2,4,4-trimethylpent-2-ene to 2,4,4-trimethylpent-1-ene over a heterogeneous catalyst based on a zeolite or an ion-exchange resin. The process includes providing an input stream containing 2,4,4-trimethylpent-2-ene and 2,4,4-trimethylpent-1-ene and performing the isomerization with the input stream using a heterogeneous catalyst based on a zeolite or an ion-exchange resin. A proportion of 2,4,4-trimethylpent-2-ene in the total stream is at least 25 mol % based on the total input stream.
    Type: Application
    Filed: June 10, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240417361
    Abstract: A process produces a carboxylic acid or salt thereof by hydrolysis or saponification of an ester formed by alkoxycarbonylation of diisobutene. The diisobutene stream used in the alkoxycarbonylation is subjected to a distillation prior to the alkoxycarbonylation in order to enrich 2,4,4-trimethylpent-1-ene in the stream to be alkoxycarbonylated. The alkoxycarbonylation is carried out with an alcohol and carbon monoxide in the presence of a homogeneous catalyst system that comprises at least one metal from group 8 to 10 of the periodic table of the elements or a compound thereof, a phosphorus-containing ligand and an acid.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240417346
    Abstract: A process provides a tops stream K containing more than 85% by weight of 2,4,4-trimethylpent-1-ene, wherein both an isomerization of 2,4,4-trimethylpont-2-ene to 2,4,4-trimethylpont-1-ene and a distillation to obtain the tops stream K are performed. The isomerization is at least partially fed with the bottoms stream of the distilation where a tops stream K is withdrawn overhead.
    Type: Application
    Filed: June 10, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240417366
    Abstract: A process is developed for the alkoxycarbonylation of diisobutene, in which the diisobutene stream used is subjected to a distillation prior to the alkoxycarbonylation in order to enrich 2,4,4-trimethylpent-1-ene in the stream to be alkoxycarbonylated. The alkoxycarbonylation is carried out with an alcohol and carbon monoxide in the presence of a homogeneous catalyst system that comprises at least one metal from group 8 to 10 of the periodic table of the elements or a compound thereof, a phosphorus-containing ligand and an acid.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240417355
    Abstract: A process is developed for the hydroformylation of diisobutene, in which the diisobutene stream used is subjected to a distillation prior to the hydroformylation in order to enrich 2,4,4-trimethylpent-1-ene in the stream to be hydroformylated. The hydroformylation is carried out with synthesis gas in the presence of a homogeneous catalyst system that comprises at least Co or Rh and optionally a phosphorus-containing ligand.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240417353
    Abstract: A process produces a target alcohol by hydrogenation of an ester formed by alkoxycarbonylation of diisobutene. The diisobutene stream used in the alkoxycarbonylation is subjected to a distillation prior to the alkoxycarbonylation in order to enrich 2,4,4-trimethylpent-1-ene in the stream to be alkoxycarbonylated. The alkoxycarbonylation is carried out with an alcohol and carbon monoxide in the presence of a homogeneous catalyst system that comprises at least one metal from group 8 to 10 of the periodic table of the elements or a compound thereof, a phosphorus-containing ligand and an acid.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 19, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Peter Kucmierczyk, Robert Franke, Anna Chiara Sale, Dirk Fridag, Ana Markovic, Armin Matthias Rix, Maren Termühlen, Laura-Selin Harding, Jan Benedikt Metternich
  • Publication number: 20240239731
    Abstract: Mixture of two constitutionally isomeric bisphosphites and use thereof in hydroformylation.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Alexander Brächer, Dirk Fridag, Johannes Knossalla, Peter Kucmierczyk, Ana Markovic
  • Publication number: 20240217994
    Abstract: Process for preparing a phosphoramidite and further reaction thereof to the monophosphite.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 4, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic, Armin Börner, Jens Holz, Kerstin Romeike, Gudrun Wenzel
  • Publication number: 20240217998
    Abstract: Diphosphites with a dicyclohexylphosphino radical and use thereof in hydroformylation.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 4, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic, Armin Börner, Detlef Selent
  • Publication number: 20240218000
    Abstract: Diphosphites with substituents in the trans position and use thereof in hydroformylation.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 4, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic, Armin Börner, Jens Holz
  • Publication number: 20240217999
    Abstract: Process for preparing monophosphites and the compound used for the preparation.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 4, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic, Armin Börner, Jens Holz, Kerstin Romeike, Gudrun Wenzel
  • Publication number: 20240218001
    Abstract: Diphosphites with substituents in the cis position and use thereof in hydroformylation.
    Type: Application
    Filed: December 15, 2023
    Publication date: July 4, 2024
    Applicant: Evonik Oxeno GmbH & Co. KG
    Inventors: Anna Chiara Sale, Robert Franke, Dirk Fridag, Peter Kucmierczyk, Ana Markovic, Armin Börner, Jens Holz
  • Patent number: 12006287
    Abstract: Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: June 11, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Peter Kucmierczyk, Ricarda Dühren, Dirk Fridag, Johannes Knossalla, Anna Chiara Sale, Ana Markovic, Alexander Brächer, Matthias Beller, Robert Franke