Patents by Inventor Andrei-Nicolae PARVULESCU

Andrei-Nicolae PARVULESCU 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: 11180467
    Abstract: The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation con
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 23, 2021
    Assignee: BASF SE
    Inventors: Nicolai Tonio Woerz, Ulrich Mueller, Andrei-Nicolae Parvulescu, Dominic Riedel, Marvin Kramp, Daniel Urbanczyk, Ulrike Wegerle, Christian Mueller, Bernd Metzen, Markus Weber, Joaquim Henrique Teles
  • Publication number: 20210346942
    Abstract: A molding, comprising a zeolitic material having framework type MFI wherein from 98 to 100 weight-% of the zeolitic material consist of Ti, Si, O, and H, and wherein the zeolitic material having framework type MFI exhibits a type IV nitrogen adsorption/desorption isotherm, the molding further comprising a silica binder, wherein the molding has a pore volume of at least 0.8 mL/g.
    Type: Application
    Filed: October 9, 2019
    Publication date: November 11, 2021
    Inventors: Andrei-Nicolae PARVULESCU, Hans-Juergen LUETZEL, Ulrich MUELLER, Dominic RIEDEL, Joaquim Henrique TELES, Markus WEBER
  • Patent number: 11155467
    Abstract: Described herein is a process for producing a zeolitic material having an MWW framework structure containing YO2 and B2O3, in which Y stands for a tetravalent element. The process includes the steps of (i) preparing a mixture containing one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (ii) crystallizing the mixture obtained in (i) for obtaining a layered precursor of the MWW framework structure, and (iii) calcining the layered precursor obtained in (ii) for obtaining the zeolitic material having an MWW framework structure. Also disclosed herein are synthetic boron-containing zeolites obtain by the process and uses thereof.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: October 26, 2021
    Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Stefan Maurer, Yu Dai, Feng-Shou Xiao, Xiangju Meng, Yeqing Wang
  • Publication number: 20210300772
    Abstract: Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO2 and X2O3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO2, one or more sources of X2O3, seed crystals, one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 30, 2021
    Applicant: BASF SE
    Inventors: Hannah SCHREYER, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Christian RIEMANN, Ralf BOEHLING, Christoph SCHAPPERT, Bernd HINRICHSEN, Stefan DUMSER, Stefanie CLADE
  • Publication number: 20210299642
    Abstract: The present invention relates to a process for the preparation of a zeolitic material SiO2 and X2O3 in its framework structure, wherein X stands for a trivalent element, wherein said process comprises interzeolitic conversion of a first zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the first zeolitic material has an FER-, TON-, MTT-, BEA-, MEL-, MWW-, MFS-, and/or MFI-type framework structure to a second zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the second zeolitic material obtained in (2) has a different type of framework structure than the first zeolitic material. Furthermore, the present invention relates to a zeolitic material per se as obtainable and/or obtained according to the inventive process and to its use, in particular as a molecular sieve, as an adsorbent, for ion-exchange, or as a catalyst and/or as a catalyst support.
    Type: Application
    Filed: June 18, 2019
    Publication date: September 30, 2021
    Inventors: Andrei-Nicolae PARVULESCU, Robert MCGUIRE, Ulrich MUELLER, Xiangju MENG, Feng-Shou XIAO, Toshiyuki YOKOI, Dirk DE VOS, Bernd MARLER, Hermann GIES, Ute KOLB, Weiping ZHANG
  • Patent number: 11110442
    Abstract: A process for preparing a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW, comprising (i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW; (ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i); (iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension in the range of from 100 to 200° C., obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW; (iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii).
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: September 7, 2021
    Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Hans-Juergen Luetzel, Joaquim Henrique Teles, Dominic Riedel, Daniel Urbanczyk, Ulrike Wegerle, Markus Weber, Nicolai Tonio Woerz, Christian Mueller
  • Patent number: 11104637
    Abstract: The present invention relates to a process for the conversion of 2-aminoethanol to ethane-1,2-diamine and/or linear polyethylenimines of the formula H2N—[CH2CH2NH]n—CH2CH2NH2 wherein n?1 comprising: (i) providing a catalyst comprising a zeolitic material having the MOR framework structure comprising YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element, said zeolitic material containing copper as extra-framework ions; (ii) providing a gas stream comprising 2-aminoethanol and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting 2-aminoethanol to ethane-1,2-diamine and/or linear polyethylenimines.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 31, 2021
    Assignee: BASF SE
    Inventors: Andrei-Nicolae Parvulescu, Alvaro Gordillo, Marie Katrin Schroeter, Johann-Peter Melder, Juergen Bechtel, Thomas Heidemann, Stephan A. Schunk, Ulrich Müller
  • Publication number: 20210261423
    Abstract: A process for preparing a zeolitic material having an AEI-type framework structure having SiO2 and X2O3 in its framework, X standing for a trivalent element, may involve: (1) preparing a mixture of structure directing agent(s) and a first zeolitic material with SiO2 and X2O3 in its framework, the first zeolitic material having a FER, TON, MTT, FAU, GIS, MOR, BEA, MFI, and LTA framework; (2) heating the mixture to obtain a second zeolitic material having an AEI-type framework with SiO2 and X2O3 in its framework; (3) optionally calcining the second zeolitic material; (4) optionally subjecting the zeolitic material from (2) or (3) to ion-exchange, preferably ion-exchanging ionic extra-framework element(s) in the zeolite framework for H+ and/or NH4+; (5) calcining the zeolitic material from (2), (3), or (4) at greater than 600 to 900° C., the calcining atmosphere containing less than 10 vol.-% of H2O. Such zeolites can convert oxygenates to olefins.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 26, 2021
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Robert MCGUIRE, Ulrich MUELLER, Toshiyuki YOKOI, Hermann GIES, Bernd MARLER, Dirk DEVOS, Ute KOLB, Feng-Shou XIAO, Weiping ZHANG, Xiangju MENG, Yong WANG
  • Publication number: 20210253495
    Abstract: A process for the production of an aromatic compound which comprise reacting a mixture comprising ethylene and a furan compound over a zeolitic material having a BEA-type framework structure is described, wherein the zeolitic material having a BEA-type framework structure comprised in the catalyst is obtainable and/or obtained according to an organotemplate-free synthetic process.
    Type: Application
    Filed: May 5, 2019
    Publication date: August 19, 2021
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Weiping ZHANG
  • Patent number: 11091425
    Abstract: The present invention relates to a process for the conversion of ethane-1,2-diol to ethane-1,2-diamine and/or linear polyethylenimines of the formula H2N—[CH2CH2NH]n—CH2CH2NH2 wherein n?1 comprising (i) providing a catalyst comprising a zeolitic material comprising YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material is selected from the group consisting of zeolitic materials having the MOR, FAU, CHA and/or GME framework structure, including combinations of two or more thereof; (ii) providing a gas stream comprising ethane-1,2-diol and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting ethane-1,2-diol to ethane-1,2-diamine and/or linear polyethylenimines.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 17, 2021
    Assignee: BASF SE
    Inventors: Andrei-Nicolae Parvulescu, Alvaro Gordillo, Marie Katrin Schroeter, Johann-Peter Melder, Juergen Bechtel, Thomas Heidemann, Stephan A. Schunk, Ulrich Müller
  • Publication number: 20210214300
    Abstract: The present invention relates to a process for the conversion of ethylene oxide to 2-aminoethanol and/or Di(2-hydroxyethyl)amine comprising (i) providing a catalyst comprising a zeolitic material comprising YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has a framework-type structure selected from the group consisting of MFI and/or MEL, including MEL/MFI intergrowths, and wherein the zeolitic material contains one or more rare earth elements; (ii) providing a mixture in the liquid phase comprising ethylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the mixture in the liquid phase provided in (ii) for converting ethylene oxide to 2-aminoethanol and/or Di(2-hydroxyethyl)amine, wherein the catalyst provided in (i) is obtained and/or obtainable by a process comprising loading one or more salts of the one or more rare earth elements into the pores of the porous structure of the zeolitic material and
    Type: Application
    Filed: May 29, 2019
    Publication date: July 15, 2021
    Inventors: Andrei-Nicolae PARVULESCU, Johann-Peter MELDER, Ulrich MUELLER, Alexander Michael HAYDL, Zeljko KOTANJAC, Hermann LUYKEN, Christian GRUENANGER
  • Publication number: 20210198114
    Abstract: The present invention relates to a process for preparing a zeolitic material having a framework type FER and having a framework structure comprising silicon, aluminum, and oxygen, said process comprising (i) preparing an aqueous synthesis mixture comprising water; a zeolitic material having a framework type other than FER and having a framework structure comprising silicon, aluminum, and oxygen; a source of silicon other than the zeolitic material having a framework type other than FER; an organic structure directing agent comprising piperidine; a source of an alkali metal; and a source of a base; (ii) subjecting the aqueous synthesis mixture prepared according to (i) to hydrothermal synthesis conditions comprising heating the synthesis mixture to a temperature in the range of from 140 to 190° C. and keeping the synthesis mixture at a temperature in this range under autogenous pressure, obtaining a mother liquor comprising a solid material which comprises the zeolitic material having a framework type FER.
    Type: Application
    Filed: July 26, 2019
    Publication date: July 1, 2021
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Robert MCGUIRE, Ulrich MUELLER, Alexander KROMER
  • Publication number: 20210162385
    Abstract: The present invention relates to a rare earth element containing zeolitic material having a framework structure selected from the group consisting of AEI, AFT, AFV, AFX, AVL, CHA, EMT, GME, KFI, LEV, LTN, and SFW, including mixtures of two or more thereof, the framework structure of the zeolitic material comprising SiO2 and X2O3, wherein X stands for a trivalent element, wherein the zeolitic material displays an SiO2:X2O3 molar ratio in the range of from 2 to 20, and wherein the zeolitic material contains one or more rare earth elements as counter-ions at the ion exchange sites of the framework structure. Furthermore, the present invention relates to a process for the production of the inventive rare earth element containing zeolitic material as well as to the use of the inventive rare earth element containing zeolitic material as such and as obtainable and/or obtained according to the inventive process.
    Type: Application
    Filed: May 23, 2019
    Publication date: June 3, 2021
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Robert MCGUIRE, Ulrich MUELLER, Weiping ZHANG, Xiangju MENG, Feng-Shou XIAO, Toshiyuki YOKOI, Hermann GIES, Bernd MARLER, Ute KOLB, Dirk DE VOS
  • 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
  • Patent number: 10981796
    Abstract: A process comprising hydrothermally synthesizing a titanium-containing zeolitic material having framework type MWW in the presence of an MWW template compound, obtaining a mother liquor comprising water, a first portion of the MWW template compound and a titanium-containing zeolitic material having framework type MWW comprising a second portion of the MWW template compound, separating the first portion of the MWW template compound from the mother liquor and recycling the first portion of the MWW template compound into a hydrothermal synthesis of a titanium-containing zeolitic material having framework type MWW.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 20, 2021
    Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Regina Vogelsang, Nicole Sabine Bruns, Jan-Oliver Weidert
  • Patent number: 10919827
    Abstract: The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the one or more solvents and in water compared to the feed stream F1 subject The present invention relates to a process for recovering 3-methylbut-3-en-1-ol from a feed stream F1 comprising 3-methylbut-3-en-1-ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1-ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1-ol, in the
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: February 16, 2021
    Assignee: BASF SE
    Inventors: Albert Werner, Miriam Bru Roig, Andrei-Nicolae Parvulescu, Roland Minges, Andreas Keller, Stephan Maurer, Ulrich Mueller, Wolfgang Siegel
  • Publication number: 20210031175
    Abstract: A batch process for preparing a zeolitic material having framework type CHA and a framework structure comprising Si, Al, O, and H, comprising (i) providing a seeding material comprising a zeolitic material having framework type CHA and a framework structure comprising Si, Al, O, and H; (ii) preparing a mixture comprising a source of Si, a source of Al, a seeding material provided in (i), a CHA framework structure directing agent comprising a cycloalkylammonium compound, and water, wherein the cycloalkylammonium compound is a compound comprising a cation R1R2R3R4N+ wherein R1, R2, R3 are, independently from one another, an alkyl residue having from 1 to 6 carbon atoms, and R4 is a 5- to 8-membered cycloalkyl residue, wherein in mixture, the molar ratio of water relative to Si comprised in the source of Si and in the seeding material, calculated as SiO2, is in the range of from 5:1 to 15:1, wherein the mixture, the molar ratio of sodium, calculated as Na2O, relative to Si comprised in the source of Si and in th
    Type: Application
    Filed: December 20, 2018
    Publication date: February 4, 2021
    Applicants: BASF SE, The University of Tokyo
    Inventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Kenta IYOKI, Watcharop CHAIKITTISILP, Torn WAKIHARA
  • Publication number: 20210002241
    Abstract: The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation con
    Type: Application
    Filed: April 13, 2018
    Publication date: January 7, 2021
    Applicant: BASF SE
    Inventors: Nicolai Tonio WOERZ, Ulrich MUELLERE, Andrei-Nicolae PARVULESCU, Dominic RIEDEL, Marvin KRAMP, Daniel URBANCZYK, Ulrike WEGERLE, Christian MUELLER, Bernd METZEN, Markus WEBER, Joaquim Henrique TELES
  • Publication number: 20200376472
    Abstract: A process for preparing a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW, comprising (i) providing a molding comprising a titanium-containing zeolitic material having framework type MWW; (ii) preparing an aqueous suspension comprising a zinc source and the molding comprising a titanium-containing zeolitic material having framework type MWW prepared in (i); (iii) heating the aqueous suspension prepared in (ii) under autogenous pressure to a temperature of the liquid phase of the aqueous suspension in the range of from 100 to 200° C., obtaining an aqueous suspension comprising a molding comprising zinc and a titanium-containing zeolitic material having framework type MWW; (iv) separating the molding comprising zinc and a titanium-containing zeolitic material having framework type MWW from the liquid phase of the suspension obtained in (iii).
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Hans-Juergen LUETZEL, Joaquim Henrique TELES, Dominic RIEDEL, Daniel URBANCZYK, Ulrike WEGERLE, Markus WEBER, Nicolai Tonio WOERZ, Christian MUELLER
  • Patent number: 10836704
    Abstract: Preparing ethanolamines/ethyleneamines in the presence of an amination catalyst prepared by reducing a calcined catalyst precursor containing one or more metals of groups 8, 9, 10 and/or 11 and low basicity achieved by: a) coprecipitating catalyst precursor and active composition additionally contains alkali metals or alkaline earth metals; b) the catalyst precursor is prepared by impregnating a support material or precipitative application onto a support material containing alkali metals, Be, Ca, Ba, Sr, hydrotalcite, chrysotile or sepiolite; c) the catalyst precursor is prepared by impregnating a support material or precipitative application onto a support material and the active composition of the catalyst support contains one or more of alkali metals and alkaline earth metals; d) the catalyst precursor is calcined at temperatures of 600° C. or more; or e) the catalyst precursor is prepared by a combination of a) and d), b) and d), or c) and d).
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 17, 2020
    Assignee: BASF SE
    Inventors: Marie Katrin Schroeter, Alvaro Gordillo, Andrei-Nicolae Parvulescu, Johann-Peter Melder, Carlos Lizandara Pueyo, Juergen Bechtel, Thomas Heidemann, Stephan A. Schunk, Ulrich Mueller