Patents Assigned to EVONIK OXENO GMBH & CO. KG
  • Automated sampling
    Patent number: 11965806
    Abstract: An apparatus, for automated sampling from vessels that may be under a high pressure, is achieved by a specific construction with multiple multiport valves. A method of automated sampling can be used with the apparatus.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: April 23, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Christian Reuter, Dirk Fridag, Georg Nordhoff, Sebastian Haumann, Alexander Brächer, Robert Franke, Dieter Hess
  • Method for separating butenes from C4 hydrocarbon streams, with subsequent oligomerisation
    Patent number: 11964940
    Abstract: A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent, and a subsequent adiabatic oligomerisation. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat and/or at least partly evaporate various streams.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 23, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Philip Lutze, Stephan Peitz, Armin Matthias Rix, Tanita Valèrie Six, Moritz Schröder, Niklas Paul
  • Method for preventing three-phase separation of butenes from C4 hydrocarbon streams
    Patent number: 11958791
    Abstract: A method for separating butenes from C4 hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The method also involves heat integration, which makes it possible to use the heat of the solvent in order to heat various streams.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 16, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Philip Lutze, Stephan Peitz, Armin Matthias Rix, Tanita Valèrie Six, Moritz Schröder, Niklas Paul
  • Process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams in the presence of mercaptans, disulfides and C5 hydrocarbons
    Patent number: 11952340
    Abstract: The present invention provides a two-stage process for removing polyunsaturated hydrocarbons from C4 hydrocarbon streams that, in addition to C4 hydrocarbons, also contain C5 hydrocarbons and mercaptans and/or disulfides.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 9, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Stephan Peitz, Guido Stochniol, Markus Winterberg, Jörg Schallenberg, Armin Matthias Rix, Andreas Wolff
  • Process for regenerating a catalyst for the hydroformylation of olefins in the gas phase
    Patent number: 11951466
    Abstract: The present invention relates to a simple process for regenerating a hydroformylation catalyst consisting of a heterogenized catalyst system on a support consisting of a porous ceramic material. The invention also relates to a process for the start-up of the hydroformylation reaction after regeneration according to the invention.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: April 9, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Robert Franke, Linda Arsenjuk, Jessika Schüller, Frank Stenger, Vinzenz Fleischer, Marc Oliver Kristen
  • Energy-efficient process for removing butenes from C4-hydrocarbon streams and subsequent n/iso separation
    Patent number: 11945777
    Abstract: A process for removing butenes from C4-hydrocarbon streams containing butanes and butenes involves extractive distillation with a suitable solvent. The process also involves heat integration, which allows utilization of the heat of the solvent for heating and/or at least partly evaporating various streams.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 2, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Philip Lutze, Stephan Peitz, Armin Matthias Rix, Tanita Valèrie Six, Moritz Schröder, Niklas Paul
  • Plasticizer composition comprising tripentyl esters of 1,2,4-cyclohexanetricarboxylic acid
    Patent number: 11932749
    Abstract: A plasticizer composition contains a compound according to the following formula (I) wherein the radicals R1, R2 and R3 are each independently selected from n-pentyl, 2-methylbutyl and 3-methylbutyl. The plasticizer composition can be used as plasticizer for polymers and a corresponding plastic composition contains the plasticizer composition.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 19, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Michael Grass, Florian Boeck, Benjamin Woldt
  • Platinum complexes having ferrocene diphosphine ligands for catalysis of the hydroxycarbonylation of ethylenically unsaturated compounds
    Patent number: 11925926
    Abstract: Platinum complexes having ferrocene-diphosphine ligands for catalysis of the hydroxycarbonylation of ethylenically unsaturated compounds.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: March 12, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Carolin Schneider, Ralf Jackstell, Matthias Beller, Robert Franke
  • Pt-xanthene-iodine complex and Pt-xanthene-bromine complex
    Patent number: 11912726
    Abstract: Pt-xanthene-iodine complex and Pt-xanthene-bromine complex, and use thereof for catalysis of a hydroformylation reaction.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: February 27, 2024
    Assignee: EVONIK OXENO GMBH & CO. KG
    Inventors: Carolin Schneider, Ralf Jackstell, Matthias Beller, Robert Franke