Patents by Inventor Ivana JEVTOVIKJ

Ivana JEVTOVIKJ 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).

  • Patent number: 11572323
    Abstract: The present invention relates to a process for the dimerization of alkenes comprising (1) providing a gas stream comprising one or more alkenes; and (2) contacting the gas stream provided in (1) with a catalyst for obtaining a mixture M1 comprising one or more dimerization products of the one or more alkenes, wherein the catalyst in (2) comprises a zeolitic material having a framework structure type selected from the group consisting of MOR, BEA, FER, MFI, TON, FAU, and mixtures of two or more thereof, wherein the framework structure of the zeolitic material comprises YO2, wherein Y stands for one or more tetravalent elements.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: February 7, 2023
    Assignee: BASF SE
    Inventors: Trees Maria De Baerdemaeker, Andrei-Nicolae Parvulescu, Ivana Jevtovikj, Craig Jon Cain-Borgman, Ulrich Mueller, Andreas Kuschel
  • Publication number: 20220127207
    Abstract: The present invention relates to a process for the dimerization of alkenes comprising (1) providing a gas stream comprising one or more alkenes; and (2) contacting the gas stream provided in (1) with a catalyst for obtaining a mixture M1 comprising one or more dimerization products of the one or more alkenes, wherein the catalyst in (2) comprises a zeolitic material having a framework structure type selected from the group consisting of MOR, BEA, FER, MFI, TON, FAU, and mixtures of two or more thereof, wherein the framework structure of the zeolitic material comprises YO2, wherein Y stands for one or more tetravalent elements.
    Type: Application
    Filed: January 30, 2020
    Publication date: April 28, 2022
    Inventors: Trees Maria DE BAERDEMAEKER, Andrei-Nicolae PARVULESCU, Ivana JEVTOVIKJ, Craig Jon CAIN-BORGMAN, Ulrich MUELLER, Andreas KUSCHEL
  • Publication number: 20220119332
    Abstract: The invention relates to a process for the preparation of acetals from carbon dioxide. The invention also relates to a mixture of phosphorus containing ligands comprising least one polydentate ligand and at least one monodentate ligand. Further, the invention also relates to the use of mixtures comprising at least one polydentate ligand and at least one monodentate ligand in transition metal complexes for the preparation of acetals.
    Type: Application
    Filed: February 5, 2020
    Publication date: April 21, 2022
    Inventors: Thomas Schaub, Ivana Jevtovikj, A. Stephen K. Hashmi, Kohei Sekine
  • Publication number: 20210138445
    Abstract: A catalyst for converting a synthesis gas, said catalyst comprising a first catalyst component and a second catalyst component, wherein the first catalyst component comprises, supported on a first porous oxidic substrate, Rh, Mn, an alkali metal M and Fe, and wherein the second catalyst component comprises, supported on a second porous oxidic support material, Cu and a transition metal other than Cu.
    Type: Application
    Filed: March 9, 2018
    Publication date: May 13, 2021
    Inventors: Christiane JANKE, Ekkehard SCHWAB, Stephan A. SCHUNK, Ivana JEVTOVIKJ, Harry KAISER, Frank ROSOWSKI, Stefan ALTWASSER, Virginie BETTE
  • Publication number: 20210114006
    Abstract: The present invention relates to a composition comprising a) a molding comprising a zeolitic material having an AEI-type framework structure, wherein the zeolitic material has a framework structure comprising Si, a trivalent element X, and oxygen, wherein the zeolitic material further comprises one or more alkali metals AM and/or one or more alkaline earth metals AEM; and b) a mixed metal oxide comprising chromium, zinc, and aluminum; and to a process for its production, as well as to the molding and the mixed metal oxide as such, respectively, as obtainable or obtained according to the inventive production process, as well as to the composition as obtainable or obtained according to the inventive production process. In addition to these, the present invention further relates to the use of the inventive composition as a catalyst or as a catalyst component, as well as to a process for preparing C2 to C4 olefins from a synthesis gas comprising hydrogen and carbon monoxide.
    Type: Application
    Filed: June 19, 2019
    Publication date: April 22, 2021
    Inventors: Christiane KURETSCHKA, Robert MCGUIRE, Ivana JEVTOVIKJ, Sven REINING, Stefan LIPP, Andrei-Nicolae PARVULESCU, Astrid Elisa NIEDERLE, Michael GESKE
  • Publication number: 20200368734
    Abstract: The present invention relates to a composition comprising a) a molding comprising a zeolitic material having framework type CHA, wherein the zeolitic material comprises one or more alkaline earth metals M and b) a mixed metal oxide comprising chromium, zinc, and aluminium. It also relates to the use of the composition in a process for producing C2 to C4 olefins from syngas.
    Type: Application
    Filed: August 8, 2018
    Publication date: November 26, 2020
    Inventors: Robert MCGUIRE, Achim WECHSUNG, Christiane KURETSCHKA, Ivana JEVTOVIKJ, Andreas KUSCHEL, Stephan A. SCHUNK
  • Publication number: 20190375724
    Abstract: A process for preparing a cyclic diester or a cyclic diamide by reacting a hydroxycarboxylic acid or amide with an acidic BEA (H-beta polymorph A) type zeolite. The process is characterised in that the total amount of acid sites is in the range of from 0.25 to 1.0 mmol/g and the amount of medium acid sites is at least 40% of the total amount of acid sites. The total amount of acid sites and the amount of medium acid sites are determined by NH3-TPD (temperature-programmed desorption of ammonia). Preferably, the process refers to the preparation of lactide from lactic acid. The framework structure of the zeolitic material comprises Si, Al, O, and H.
    Type: Application
    Filed: March 14, 2018
    Publication date: December 12, 2019
    Applicant: BASF SE
    Inventors: Alvaro GORDILLO, Andrei-Nicolae PARVULESCU, Henelyta SANTOS RIBEIRO, Joerg ROTHER, Ivana JEVTOVIKJ, Ulrich MUELLER, Stefan MAURER
  • Patent number: 10428039
    Abstract: Provided herein is a process for preparing furan-2,5-dicarboxylic acid. The process includes the following steps: (A-1) preparing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of: hexoses, oligosaccharides comprising hexose units, and polysaccharides including hexose units, and as a solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of a formula (II) and (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, resulting in a mixture including 5-(hydroxymethyl)furfural and/or the one or more HMF esters of a formula (I), one or more carboxylic acids of a formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 1, 2019
    Assignee: BASF SE
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A. Schunk, Ivana Jevtovikj, Rene Backes, Holger Werhan, Svenia Duefert, Richard Dehn, Markus Piepenbrink
  • Patent number: 10259797
    Abstract: Provided herein is a process for preparing a mixture including 5-(hydroxy-methyl)furfural (HMF) and one or more HMF esters of formula (I), the process including the following steps: (A-1) preparing or providing a starting mixture which includes one, two or more carbohydrate compounds and as the solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of formula (II); (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, so that a mixture results that includes 5-(hydroxy-methyl)furfural and/or the one or more HMF esters of formula (I), one or more carboxylic acids of formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 16, 2019
    Assignee: BASF SE
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Holger Werhan, Svenia Duefert, Markus Piepenbrink, Rene Backes, Richard Dehn
  • Publication number: 20180319758
    Abstract: Provided herein is a process for preparing furan-2,5-dicarboxylic acid. The process includes the following steps: (A-1) preparing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of: hexoses, oligosaccharides comprising hexose units, and polysaccharides including hexose units, and as a solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of a formula (II) and (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, resulting in a mixture including 5-(hydroxymethyl)furfural and/or the one or more HMF esters of a formula (I), one or more carboxylic acids of a formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Rene Backes, Holger Werhan, Svenia Duefert, Richard Dehn, Markus Piepenbrink
  • Publication number: 20180319759
    Abstract: Provided herein is a process for preparing a mixture including 5-(hydroxy-methyl)furfural (HMF) and one or more HMF esters of formula (I), the process including the following steps: (A-1) preparing or providing a starting mixture which includes one, two or more carbohydrate compounds and as the solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of formula (II); (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, so that a mixture results that includes 5-(hydroxy-methyl)furfural and/or the one or more HMF esters of formula (I), one or more carboxylic acids of formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Holger Werhan, Svenia Duefert, Markus Piepenbrink, Rene Backes, Richard Dehn
  • Patent number: 10011551
    Abstract: Catalytic process for preparing an ?,?-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the ?,?-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing ?,?ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: July 3, 2018
    Assignee: BASF SE
    Inventors: Michael Limbach, Ivana Jevtovikj, Nuria Huguet Subiela, Alvaro Gordillo, Sabine Chantal Eileen Stieber, Ronald Lindner, Miriam Bru Roig, Michael Lejkowski, Takeharu Kageyama, Stephan A. Schunk
  • Publication number: 20170217869
    Abstract: Catalytic process for preparing an ?,?-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the ?,?-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing ?-?ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 3, 2017
    Applicant: BASF SE
    Inventors: Michael LIMBACH, Ivana JEVTOVIKJ, Nuria HUGUET SUBIELA, Alvaro GORDILLO, Sabine Chantal Eileen STIEBER, Ronald LINDNER, Miriam BRU ROIG, Michael LEJKOWSKI, Takeharu KAGEYAMA, Stephan A. SCHUNK