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).
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Publication number: 20210198114Abstract: 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: ApplicationFiled: July 26, 2019Publication date: July 1, 2021Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Robert MCGUIRE, Ulrich MUELLER, Alexander KROMER
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Publication number: 20210162385Abstract: 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: ApplicationFiled: May 23, 2019Publication date: June 3, 2021Applicant: BASF SEInventors: 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
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Publication number: 20210114006Abstract: 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: ApplicationFiled: June 19, 2019Publication date: April 22, 2021Inventors: Christiane KURETSCHKA, Robert MCGUIRE, Ivana JEVTOVIKJ, Sven REINING, Stefan LIPP, Andrei-Nicolae PARVULESCU, Astrid Elisa NIEDERLE, Michael GESKE
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Patent number: 10981796Abstract: 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: GrantFiled: December 12, 2017Date of Patent: April 20, 2021Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Regina Vogelsang, Nicole Sabine Bruns, Jan-Oliver Weidert
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Patent number: 10919827Abstract: 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 theType: GrantFiled: August 10, 2018Date of Patent: February 16, 2021Assignee: BASF SEInventors: Albert Werner, Miriam Bru Roig, Andrei-Nicolae Parvulescu, Roland Minges, Andreas Keller, Stephan Maurer, Ulrich Mueller, Wolfgang Siegel
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Publication number: 20210031175Abstract: 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 thType: ApplicationFiled: December 20, 2018Publication date: February 4, 2021Applicants: BASF SE, The University of TokyoInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Kenta IYOKI, Watcharop CHAIKITTISILP, Torn WAKIHARA
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Publication number: 20210002241Abstract: 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 conType: ApplicationFiled: April 13, 2018Publication date: January 7, 2021Applicant: BASF SEInventors: 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
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Publication number: 20200376472Abstract: 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: ApplicationFiled: August 19, 2020Publication date: December 3, 2020Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Hans-Juergen LUETZEL, Joaquim Henrique TELES, Dominic RIEDEL, Daniel URBANCZYK, Ulrike WEGERLE, Markus WEBER, Nicolai Tonio WOERZ, Christian MUELLER
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Patent number: 10836704Abstract: 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: GrantFiled: December 7, 2017Date of Patent: November 17, 2020Assignee: BASF SEInventors: Marie Katrin Schroeter, Alvaro Gordillo, Andrei-Nicolae Parvulescu, Johann-Peter Melder, Carlos Lizandara Pueyo, Juergen Bechtel, Thomas Heidemann, Stephan A. Schunk, Ulrich Mueller
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Publication number: 20200339430Abstract: 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: ApplicationFiled: September 5, 2017Publication date: October 29, 2020Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Stefan MAURER, Yu DAI, Feng-Shou XIAO, Xiangju MENG, Yeqing WANG
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Publication number: 20200317532Abstract: A process for preparing a zeolitic material having a zeolitic framework structure which exhibits a molar ratio (aAl2O3):SiO2 or a crystalline precursor thereof, comprising (i) preparing a mixture comprising H2O, one or more compounds comprising Si from which SiO2 in the zeolitic framework structure is formed, said one or more compounds comprising a silica gel exhibiting a molar ratio (c H2O):SiO2 and optionally one or more compounds comprising Al from which Al2O3 in the zeolitic framework structure is formed; (ii) subjecting the mixture obtained in (i) to crystallization at a crystallization temperature in the range of from 110 to 350° C., preferably in the range of from 190 to 350° C., and for a crystallization time in the range of from 0.1 to 48 h.Type: ApplicationFiled: September 22, 2017Publication date: October 8, 2020Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Stefan MAURER, Yu DAI, UIrich MUELLER, Fengshou XIAO, Chaoqun BIAN, Robert MCGUIRE
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Patent number: 10793443Abstract: The present invention relates to a process for the production of a boron-containing zeolitic material having an MWW framework structure comprising YO2 and B2O3, wherein Y stands for a tetravalent element, wherein said process comprises (a) providing a mixture comprising one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (b) crystallizing the mixture obtained in (a) for obtaining a layered precursor of the boron-containing MWW-type zeolitic material, (c) calcining the layered precursor obtained in (b) for obtaining the boron-containing zeolitic material having an MWW framework structure, wherein the one or more organotemplates have the formula (I) R1R2R3N??(I) wherein R1 is (C5-C8)cycloalkyl, and wherein R2 and R3 are independently from each other H or alkyl, as well as to a synthetic boron-containing zeolite which is obtainable and/or obtained according to the inventive process as well as to its use.Type: GrantFiled: November 28, 2018Date of Patent: October 6, 2020Assignee: BASF SEInventors: Stefan Maurer, Andrei-Nicolae Parvulescu, Ulrich Mueller, Xiangju Meng, Feng-Shou Xiao, Yeqing Wang
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Publication number: 20200308083Abstract: Disclosed is a process for the alkylation of an aliphatic organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and optionally comprises X2O3, wherein Y is a tetravalent element, and X is a trivalent element, (b) contacting the catalyst with one or more aliphatic organic compounds in the presence of one or more alkylating agents in one or more reactors for obtaining one or more alkylated organic compounds, wherein the one or more zeolitic materials are obtainable from a synthetic process which does not employ an organotemplate as structure directing agent.Type: ApplicationFiled: December 20, 2018Publication date: October 1, 2020Applicant: BASF SEInventors: Robert MCGUIRE, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Dirk DE VOS, Patrick TOMKINS
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Patent number: 10780432Abstract: 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: GrantFiled: January 18, 2018Date of Patent: September 22, 2020Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Hans-Juergen Luetzel, Joaquim Henrique Teles, Dominic Riedel, Daniel Urbanczyk, Ulrike Wegerle, Markus Weber, Nicolai Tonio Woerz, Christian Mueller
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Patent number: 10774057Abstract: A process for preparing ethene oxide comprising providing a liquid feed stream comprising ethene, hydrogen peroxide, and a solvent; passing the liquid feed stream into an epoxidation zone comprising a catalyst comprising a titanium zeolite comprising zinc and having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising ethene oxide, water, and the solvent; removing an effluent stream from the epoxidation zone, the effluent stream comprising ethene oxide, water and the solvent.Type: GrantFiled: July 12, 2017Date of Patent: September 15, 2020Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Joaquim Henrique Teles, Dominic Riedel, Markus Weber, Yan Li
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Patent number: 10774034Abstract: The present invention relates to a process for the conversion of ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamine and/or linear polyethylenimines of the formula H2N—(CH2CH2NH)n—CH2CH2—NH2 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; (ii) providing a gas stream comprising ethylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting ethylene oxide to 2-aminoethanol and/or ethane-1,2-diamine and/or linear polyethylenimines.Type: GrantFiled: May 3, 2018Date of Patent: September 15, 2020Assignee: BASF SEInventors: Alvaro Gordillo, Andrei-Nicolae Parvulescu, Armin Lange De Oliveira, Andreas Kuschel, Juergen Bechtel, Johannes Lieberknecht, Ulrich Müller, Johann-Peter Melder, Christian Gruenanger
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Publication number: 20200283304Abstract: The present invention relates to a process for the preparation of a zeolitic material, as well as to a catalyst per se as obtainable or obtained according to said process. Furthermore, the present invention relates to the use of the zeolitic material, in particular as a catalyst.Type: ApplicationFiled: November 22, 2018Publication date: September 10, 2020Applicant: BASF SEInventors: Christian RIEMANN, Andrei-Nicolae PARVULESCU, Ralf BOEHLING, Ulrich MUELLER, Hans-Juergen LUETZEL, Stefanie CLADE, Christoph SCHAPPERT
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Patent number: 10766781Abstract: A process for preparing a tin-containing zeolitic material having framework type BEA, comprising providing an aqueous synthesis mixture comprising a boron source, a silicon source, and a BEA structure directing agent; subjecting the synthesis mixture provided in to hydrothermal pre-crystallization conditions; adding the tin source to the obtained mixture; subjecting the obtained aqueous synthesis mixture to hydrothermal crystallization conditions, obtaining a tin-containing zeolitic material having framework type BEA comprised in its mother liquor.Type: GrantFiled: December 7, 2016Date of Patent: September 8, 2020Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Joaquim Henrique Teles, Nicolas Vautravers, Ulrich Müller
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Patent number: 10766840Abstract: The present invention relates to a process for preparing an unsaturated alcohol, preferably 3,7-dimethyl-2,6-octadienal, by contacting an alkene, preferably isobutene, with formaldehyde in the presence a condensation catalyst comprising a zeolitic material comprising the framework structure of which comprises a tetravalent element Y other than Si.Type: GrantFiled: February 27, 2018Date of Patent: September 8, 2020Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Miriam Bru Roig, Albert Werner, Bernhard Brunner, Wolfgang Siegel, Stephan Maurer, Ulrich Mueller, Michael Ludwig Lejkowski
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Patent number: 10737944Abstract: An incipient wetness impregnation method for preparing a tin-containing zeolitic material having framework type BEA, a novel tin-containing zeolitic material having framework type BEA and its use.Type: GrantFiled: December 7, 2016Date of Patent: August 11, 2020Assignee: BASF SEInventors: Nicolas Vautravers, Joaquim Henrique Teles, Ralf Pelzer, Daniel Schneider, Florian Garlichs, Andreas Keller, Andrei-Nicolae Parvulescu, Ulrich Müller, Sumana Roy