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).

  • Publication number: 20240109058
    Abstract: A rare earth element containing zeolitic material having an AEI-type framework structure, the framework structure of the zeolitic material comprising SiO2 and X2O3, X being a trivalent element, wherein the zeolitic material contains one or more rare earth elements as counter-ions at the ion exchange sites of the framework structure, and wherein the zeolitic material is obtainable and/or obtained according to a process involving the hydrothermal treatment of the rare earth element containing zeolitic material at a temperature in the range of from 400 to 1,000° C. A coated monolith substrate comprising a rare earth element containing zeolitic material having an AEI-type framework structure, wherein the zeolitic material is supported on the monolith substrate. A process for the production of a coated monolith substrate comprising a rare earth element containing zeolitic material having an AEI-type framework structure.
    Type: Application
    Filed: November 24, 2020
    Publication date: April 4, 2024
    Inventors: Andrei-Nicolae Parvulescu, III, Robert McGuire, Ulrich Mueller, Weiping Zhang, Chuan Shi
  • Patent number: 11897778
    Abstract: 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: Grant
    Filed: November 22, 2018
    Date of Patent: February 13, 2024
    Assignee: BASF SE
    Inventors: Christian Riemann, Andrei-Nicolae Parvulescu, Ralf Boehling, Ulrich Mueller, Hans-Juergen Luetzel, Stefanie Clade, Christoph Schappert
  • Publication number: 20230294988
    Abstract: The present invention relates to a catalyst for the oxidation of hydrogen chloride to chlorine, wherein the catalyst comprises an inorganic carrier matrix and a zeolite, wherein the inorganic carrier matrix comprises Y, O, and optionally comprises X, wherein the zeolite comprises Y and O in its framework structure, and optionally comprises X in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the inorganic carrier matrix and the zeolite are loaded with copper and with one or more rare earth metals, and wherein the zeolite is supported within the inorganic carrier matrix. Furthermore, the present invention relates to a molding comprising the catalyst, as well as to a process for the production of the catalyst and the molding, respectively, as well as to their respective use in a process for the oxidation of hydrogen chloride to chlorine.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 21, 2023
    Inventors: Alvaro GORDILLO BOLONIO, Claudia LERMER, Andrei-Nicolae PARVULESCU, Bilge YILMAZ, David SCHLERETH, Hendrik DE WINNE, Elena PARVULESCU, Joseph John ZAKZESKI, Ulrich MUELLER
  • Publication number: 20230295099
    Abstract: The present invention relates to a process for the production of 2,2,4,6,6-pentamethyl-1,2,5,6-tetrahydro-pyrimidine comprising (i) providing a reactor containing a catalyst comprising a zeolitic material, wherein the zeolitic material comprises YO2 and optionally comprises X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) for obtaining a reaction product comprising 2,2,4,6,6-pentamethyl-1,2,5,6-tetrahydro-pyrimidine; wherein the temperature programmed desorption of ammonia (NH3-TPD) profile of the zeolitic material comprised in the catalyst provided in (i) optionally displays one or more bands associated with medium acid sites, said one or more bands having maxima in the temperature range of from 250 to 500° C., wherein the integration of said one or more bands affords a total value of 0.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 21, 2023
    Inventors: Thomas HEYDT, Alvaro GORDILLO BOLONIO, Michael SCHMITT, Klaus GUENTHER, Ulrich MÜLLER, Andrei-Nicolae PARVULESCU, Michael KUEBLER
  • Patent number: 11691932
    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: Grant
    Filed: May 5, 2019
    Date of Patent: July 4, 2023
    Assignee: BASF SE
    Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Weiping Zhang
  • Publication number: 20230191378
    Abstract: The present invention relates to a zeolitic material having a framework structure comprising Si, O, and Ti, obtained or obtainable from a Ti containing compound, wherein the Ti containing compound has an APHA color number of ? 300. In a second aspect, the invention relates to the Ti containing compound having an APHA color number of ? 300. A third aspect of the present invention is related to the use of the Ti containing compound having an APHA color number of ? 300 of the second aspect for the preparation of a zeolitic material having framework structure comprising Si, O, and Ti, as well as to a process for preparation of a zeolitic material as in the first aspect having a framework structure comprising Si, O, and Ti, wherein the zeolitic material having a framework structure comprising Si, O, and Ti, is prepared from a Ti containing compound having an APHA color number of ? 300 as of the second aspect.
    Type: Application
    Filed: March 22, 2021
    Publication date: June 22, 2023
    Inventors: Andrei-Nicolae PARVULESCU, Dominic RIEDEL, Milan KOSTUR, Joaquim Henrique TELES, Jaroslaw Michael MORMUL, Thomas Maximilian WURM
  • Publication number: 20230150827
    Abstract: The present invention relates to a crystalline material having a framework structure comprising O and one or more tetravalent elements Y, and optionally comprising one or more trivalent elements X, wherein the crystalline material displays a crystallographic unit cell of the monoclinic space group C2, wherein the unit cell parameter a is in the range of from 14.5 to 20.5 ?, the M unit cell parameter b is in the range of from 14.5 to 20.5 ?, the unit cell parameter c in the range of from 11.5 to 17.5 ? and the unit cell parameter ? is in the range of from 109 to 118°, wherein the framework density is in the range of from 11 to 23 T-atoms/1000 ?3 wherein the framework structure comprises 12 membered rings, and wherein the framework structure displays a 2-dimensional channel e dimensionality of 12 membered ring channels. The present invention further relates to a process for the production of said material, as N well as to its use, in particular as a catalyst or catalyst component.
    Type: Application
    Filed: March 23, 2021
    Publication date: May 18, 2023
    Inventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Tress Maria De Baerdemaeker, Ute Kolb, Bernd Marler, Feng-Shou Xiao, Toshiyuki Yokoi, Weiping Zhang, Dirk De Vos, Xiangju Meng
  • Publication number: 20230145404
    Abstract: The invention relates in a first aspect to a process for the preparation of propylene oxide, comprising: (i) providing a reaction mixture comprising propylene, water, organic solvent, and hydrogen peroxide; (ii) contacting the reaction mixture provided in (i) in an epoxidation zone with an epoxidation catalyst comprising a zeolitic material having a framework structure comprising Si, O, and Ti, and subjecting the reaction mixture to epoxidation reaction conditions in the epoxidation zone, obtaining, in the epoxidation zone, a mixture comprising propylene oxide, water, and organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, and organic solvent; wherein the reaction mixture provided in (i) and subjected to (ii) contains in an amount of at most 500 mg per kg hydrogen peroxide comprised in said reaction mixture at least one aliphatic oxygen containing compound having 8 to 10 carbon atoms.
    Type: Application
    Filed: March 22, 2021
    Publication date: May 11, 2023
    Inventors: Dominic RIEDEL, Joaquim Henrique TELES, Jaroslaw Michael MORMUL, Andrei-Nicolae PARVULESCU, Meinolf WEIDENBACH, Franciscus Johannes Robertus VAN NEER
  • Patent number: 11623868
    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: Grant
    Filed: August 2, 2019
    Date of Patent: April 11, 2023
    Assignee: BASF SE
    Inventors: Hannah Schreyer, Andrei-Nicolae Parvulescu, Ulrich Mueller, Christian Riemann, Ralf Boehling, Christoph Schappert, Bernd Hinrichsen, Stefan Dumser, Stefanie Clade
  • 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: 20230030960
    Abstract: The present invention relates to a molding comprising a zeolitic material having framework type MWW, wherein the framework structure comprises Ti, Si, and O, wherein the zeolitic material further comprises Zn and an alkaline earth metal M, the molding further comprising a binder, wherein the molding exhibits a specific Lewis acidity. Further, the present invention relates to the method of preparation of said molding and the use thereof.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 2, 2023
    Inventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Jaroslaw Michael MORMUL, Joaquim Henrique TELES, Dominic RIEDEL, Markus WEBER
  • Publication number: 20230028994
    Abstract: The present invention relates to a catalytic material for the preparation of one or more of 4,4?-methylenedianiline, 2,2?-methylenedianiline, 2,4?-methylenedianiline, and oligomers of two or more thereof, the catalytic material comprising an oxidic support, wherein the oxidic support comprises an element EOS1 selected from the group consisting of Ti, Zr, Al, Si, and mixtures of two or more thereof, and further comprising a supported material supported on the oxidic support, wherein the supported material comprises an element ESM1 selected from the group consisting of Ti, Zr, V, Nb, Ta, Mo, W, Ge, Sn, Sc, Y, La, Ce, Nd, Pr, Hf, Cr, Fe, Co, Ni, Cu Zn, Pb and mixtures of two or more thereof. Further, the present invention relates in particular to a process for the preparation of a catalytic material and to a process for the preparation of one or more of 4,4?-methylenedianiline, 2,2?-methylenedianiline, 2,4?-methylenedianiline and oligomers of two or more thereof.
    Type: Application
    Filed: December 11, 2020
    Publication date: January 26, 2023
    Inventors: Andrei-Nicolae Parvulescu, Alvaro Gordillo Bolonio, Trees Maria De Baerdemaeker, Ulrich Mueller, Dirk de Vos, Ka Yan Cheung
  • Publication number: 20230028936
    Abstract: The present invention relates to a specific continuous process for preparing a zeolitic material having a framework structure type selected from the group consisting of MFI, MEL, IMF, SVY, FER, SVR, and intergrowth structures of two or more thereof, preferably an MFI- and/or MEL-type framework structure, comprising Si, Ti, and O, and to a zeolitic material as obtainable and/or obtained according to said process. Further, the present invention relates to a process for preparing a molding, and to a molding obtainable and/or obtained according to said process. Yet further, the present invention relates to a use of said zeolitic material and molding.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 26, 2023
    Inventors: Hannah SCHREYER, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Dominic RIEDEL, Jaroslaw Michael MORMUL, Ralf BOEHLING
  • Patent number: 11554964
    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: Grant
    Filed: July 26, 2019
    Date of Patent: January 17, 2023
    Assignee: BASF SE
    Inventors: Andrei-Nicolae Parvulescu, Robert McGuire, Ulrich Mueller, Alexander Kromer
  • Publication number: 20230008221
    Abstract: The present invention relates to a process for preparing a molding comprising a zeolitic material and one or more oxidic binders, the process particularly comprising preparing a mixture of a zeolitic material, such as Mg-ZSM-5, a source of an oxidic binder, and a first plasticizer; admixing an acid to said mixture; and shaping of the mixture, to obtain a precursor of a molding; wherein in said mixture a specific weight ratio of the source of the oxidic binder to the sum of the zeolitic material and the source of the oxidic binder is applied. Further, the present invention relates to a molding obtainable or obtained by the inventive process, and to a molding itself displaying in particular a comparatively improved crush strength. Yet further, the present invention relates to a method for the conversion of oxygenates to olefins and to a use of the inventive molding.
    Type: Application
    Filed: December 10, 2020
    Publication date: January 12, 2023
    Inventors: Andrei-Nicolae PARVULESCU, Trees Maria DE BAERDEMAEKER, Hamideh AHI, Nakul THAKAR, Stefan KOTREL, Emma Sian THOMPSON, Matthias KELLERMEIER, Ulrich MUELLER
  • Publication number: 20220401933
    Abstract: The present invention relates to a process for the conversion of propylene oxide to 1-amino-2-propanol and/or di(2-hydroxypropyl)amine comprising (i) providing a catalyst comprising a zeolitic material comprising YO2 and optionally comprising 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; (ii) providing a mixture in the liquid phase comprising propylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the mixture in the liquid phase provided in (ii) for converting propylene oxide to 1-amino-2-propanol and/or di(2-hydroxypropyl)amine.
    Type: Application
    Filed: November 19, 2020
    Publication date: December 22, 2022
    Inventors: Alexander Michael HAYDL, Alvaro GORDILLO BOLONIO, Andrei-Nicolae PARVULESCU, Johann-Peter MELDER, Ulrich MUELLER, Thomas KRUG
  • Patent number: 11529620
    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: Grant
    Filed: June 18, 2019
    Date of Patent: December 20, 2022
    Assignee: BASF Corporation
    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
  • Publication number: 20220339611
    Abstract: A zeolitic material having the ITH framework structure type.A process for the preparation of a zeolitic material having the ITH framework structure type, the process comprising: (1) preparing a mixture comprising one or more specific organotemplates as structure direct-ing agents, one or more sources of YO2, optionally one or more sources of X2O3, seed crystals, and a solvent system, wherein Y is tetravalent element and X is a trivalent ele-ment,(2) heating the mixture obtained in (1) for crystallizing a zeolitic material having the ITH framework structure type comprising YO2 and optionally X2O3 in its framework structure; wherein the one or more organotemplates comprise a specific polymeric cation.
    Type: Application
    Filed: September 18, 2020
    Publication date: October 27, 2022
    Inventors: Andrei-Nicolae Parvulescu, Trees Maria De Baerdemaeker, Ulrich Mueller, Feng-Shou Xiao, Xiangju Meng, Qinming Wu
  • Publication number: 20220298019
    Abstract: The present invention relates to a zeolitic material having the IWR type framework structure, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, and wherein the framework structure of the zeolitic material comprises less than 5 weight-% weight-% of Ge calculated as GeO2 and based on 100 weight-% weight-% of YO2 contained in the framework structure, and less than 5 weight-% weight-% of B calculated as B2O3 and based on 100 weight-% weight-% of X2O3 contained in the framework structure. Further, the present invention relates to a process for preparing a zeo-litic material having the IWR type framework structure, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 22, 2022
    Inventors: Andrei-Nicolae Parvulescu, Feng-Shou Xiao, Xiangju Meng, Qinming Wu, Ulrich Mueller, Toshiyuki Yokoi, Weiping Zhang, Ute Kolb, Bernd Marler, Dirk De Vos, Xin Hong
  • Publication number: 20220227710
    Abstract: The present invention relates to a process for the production of 2,2,6,6-tetramethyl-4-piperidone particularly comprising (i) providing a reactor containing a catalyst comprising a zeolitic material having a framework structure of FAU, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has an YO2 to X2O3 molar ratio of 16 to 175; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) at a temperature in the range of from 40 to 250° C. for obtaining a reaction product comprising 2,2,6,6-tetramethyl-4-piperidone; wherein the mixture prepared in (ii) and contacted with the catalyst in (iii) contains less than 10 weight-% of water based on 100 weight-% of the reaction mixture.
    Type: Application
    Filed: May 24, 2020
    Publication date: July 21, 2022
    Inventors: Thomas HEYDT, Michael SCHMITT, Alvaro GORDILLO BOLONIO, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Michael KUEBLER