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: 20160176835Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt; (ii) passing the feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one potassium salt, optionally propene, and optionally pane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one potassium salt, optionally propene, and optionally propane.Type: ApplicationFiled: July 16, 2014Publication date: June 23, 2016Applicants: BASF SE, DOW Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Ulrike WEGERLE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Luise SPISKE, Daniel URBANCZYK, Ulrich MUELLER, Werner WITZL, Meinolf Weidenbach
-
Publication number: 20160176834Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.Type: ApplicationFiled: July 16, 2014Publication date: June 23, 2016Applicants: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique TELES, Bianca SEELIG, Dominic RIEDEL, Philip KAMPE, Daniel URBANCZYK, Markus WEBER, Ulrich MUELLER, Andrei-Nicolae PARVULESCU, Kai GUMLICH, Peter BASSLER, Christian BARTOSCH, Richard JACUBINAS, Meinolf WEIDENBACH, Werner WITZL
-
Patent number: 9371239Abstract: A tin containing zeolitic material having an MWW-type framework structure (Sn-MWW), having a tin content of at most 2 weight-%, calculated as element and based on the weight of the Sn-MWW, and having an X-ray diffraction pattern comprising peaks at 2 theta diffraction angles of (6.6±0.1)°, (7.1±0.1)°, and (7.9±0.1)°.Type: GrantFiled: November 5, 2013Date of Patent: June 21, 2016Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Ulrich Müller, Joaquim Henrique Teles, Nicolas Vautravers, Bernd Hinrichsen, Gerhard Cox, Richard Jacubinas
-
Publication number: 20160152541Abstract: The present invention relates to a process for preparing acrylic acid from acetic acid and formaldehyde, which comprises (a) provision of a stream S1 comprising acetic acid and formaldehyde, where the molar ratio of acetic acid to formaldehyde in the stream S1 is in the range from 0.5:1 to 2:1; (b) contacting of the stream S1 with an aldol condensation catalyst comprising vanadium, phosphorus and oxygen to give a stream S2 comprising acrylic acid, where, in (b), the space velocity WHSV is in the range from 0.35 to 7.0 kg/kg/h.Type: ApplicationFiled: December 2, 2015Publication date: June 2, 2016Applicant: BASF SEInventors: Yong LIU, Martin DIETERLE, Nicolai Tonio WOERZ, Andrei-Nicolae PARVULESCU, Michael LEJKOWSKI, Johannes LIEBERKNECHT, Christian WALSDORFF, Kazuhiko AMAKAWA
-
Publication number: 20160145171Abstract: The present invention relates to a gas-phase process for the preparation of butadiene comprising (i) providing a gas stream G-1 comprising ethanol; (ii) contacting the gas stream G-1 comprising ethanol with a catalyst, thereby obtaining a gas stream G-2 comprising butadiene, wherein the catalyst comprises a zeolitic material having a framework structure comprising YO2, Y standing for one or more tetravalent elements, wherein at least a portion of Y comprised in the framework structure is isomorphously substituted by one or more elements X, as well as to a zeolitic material having a framework structure comprising YO2, Y standing for one or more tetravalent elements, wherein at least a portion of Y comprised in the framework structure is isomorphously substituted by one or more elements X, wherein the zeolitic material displays a specific X-ray powder diffraction pattern, and to its use.Type: ApplicationFiled: June 13, 2014Publication date: May 26, 2016Inventors: Kirsten Spannhoff, Andrei-Nicolae Parvulescu, Armin Lange de Oliveira, Stefan Marx, Mathias Feyen, Ulrich Müller, Ekkehard Schwab
-
Publication number: 20160122296Abstract: The present invention relates to a process for oxidizing a sulfoxide to the respective sulfone, said process comprising reacting the sulfoxide with hydrogen peroxide in the presence of a catalyst, obtaining a mixture (M) comprising the sulfone and the catalyst, wherein the catalyst comprises a porous titanium-containing silicate as a catalytically active material.Type: ApplicationFiled: May 28, 2014Publication date: May 5, 2016Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Jan SPIELMANN, Wilfried VOGEL, Jun GAO
-
Publication number: 20160115140Abstract: A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally afterType: ApplicationFiled: April 28, 2014Publication date: April 28, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Joaquim H. TELES, Dominic RIEDEL, Bianca SEELIG, Philip KAMPE, Daniel URBANCZYK, Markus WEBER, Alexander SCHROEDER, Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Meinolf WEIDENBACH, Werner WITZL, Holger BAER
-
Publication number: 20160109067Abstract: The presently claimed invention is related to a method of transporting oil by using a solid particles-stabilized emulsion containing water as continuous phase, oil as a dispersed phase and at least one magnetic solid particle which comprises layered double hydroxide.Type: ApplicationFiled: May 20, 2014Publication date: April 21, 2016Inventors: Riichiro KIMURA, Stefan MAURER, Andrei-Nicolae PARVULESCU, Lorenz SIGGEL, Ulrich MÜLLER
-
Patent number: 9296714Abstract: The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc.Type: GrantFiled: February 5, 2013Date of Patent: March 29, 2016Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Joaquim Henrique Teles, Bianca Seelig, Philip Kampe, Markus Weber, Robert Bayer, Karsten Seidel, Peter Resch
-
Patent number: 9296715Abstract: The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc.Type: GrantFiled: December 30, 2013Date of Patent: March 29, 2016Assignee: BASF SEInventors: Andrei-Nicolae Parvulescu, Ulrich Mueller, Joaquim Henrique Teles, Bianca Seelig, Philip Kampe, Markus Weber, Robert Bayer, Karsten Seidel, Peter Resch
-
Publication number: 20160031714Abstract: The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof.Type: ApplicationFiled: September 23, 2015Publication date: February 4, 2016Applicant: BASF SEInventors: Ulrich MUELLER, Andrei-Nicolae Parvulescu, Jeff Yang, Hans-Juergen Luetzel, Georg Uhl, Stefan Dumser
-
Publication number: 20160002058Abstract: A process for preparing an aluminum-free boron containing zeolitic material comprising the framework structure MWW (BMWW), comprising (a) hydrothermally synthesizing the BMWW from a synthesis mixture containing water, a silicon source, a boron source, and an MWW template compound obtaining the BMWW in its mother liquor, the mother liquor having a pH above 9; (b) adjusting the pH of the mother liquor, obtained in (a) and containing the BMWW, to a value in the range of from 6 to 9; (c) separating the BMWW from the pH-adjusted mother liquor obtained in (b) by filtration in a filtration device.Type: ApplicationFiled: February 5, 2014Publication date: January 7, 2016Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Hans-Juergen LUETZEL, Georg UHL, Robert BAYER, Regina VOGELSANG, Robert SCHLOSSER, Franky RUSLIM, Pawel CZAJKA
-
Publication number: 20150368115Abstract: A process for the preparation of a titanium-containing zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure comprising SiO2 and B2O3, (ii) incorporating titanium into the zeolitic material provided in (i) comprising (ii.1) preparing an aqueous synthesis mixture containing the zeolitic material provided in (i), an MWW template compound and a titanium source, (ii.2) hydrothermally synthesizing a titanium-containing zeolitic material having an MWW framework structure from the aqueous synthesis mixture prepared in (ii.1), obtaining a mother liquor comprising the titanium-containing zeolitic material having an MWW framework structure; (iii) spray-drying the mother liquor obtained from (ii.2) comprising the titanium-containing zeolitic material having an MWW framework structure.Type: ApplicationFiled: February 5, 2014Publication date: December 24, 2015Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Hans-Juergen LUETZEL, Georg UHL, Robert BAYER, Regina VOGELSANG, Joaquim Henrique TELES, Dominic RIEDEL, Daniel URBANCZYK, Ulrike WEGERLE
-
Publication number: 20150361325Abstract: The present invention relates to a process for recovering oil from a subterranean formation by injecting both solid particles and water into the formation. An oil-in-water emulsion that is stabilized by solid particles is formed in the pores of the formation. This emulsion is recovered from the subterranean formation.Type: ApplicationFiled: January 15, 2014Publication date: December 17, 2015Applicants: WHEREAS, WINTERSHALL HOLDING GMBH, BASF SEInventors: Riichiro Kimura, Stefan Maurer, Andrei-Nicolae Parvulescu, Lorenz Siggel, Ulrich Müller, Thomas Frechen, Bernd Hinrichsen
-
Publication number: 20150353808Abstract: The presently claimed invention is directed a solid particles-stabilized emulsion containing a continuous phase and a dispersed phase comprising a) water, b) crude oil having a viscosity in the range of 1 to 10000 mPa·s at a temperature of 20° C. according to DIN 53019 and c) at least one layered double hydroxide of general formula (I), wherein water is the continuous phase and crude oil is the dispersed phase, and a process for preparing the same.Type: ApplicationFiled: January 15, 2014Publication date: December 10, 2015Applicant: WINTERSHALL HOLDING GMBHInventors: Riichiro Kimura, Stefan Maurer, Andrei-Nicolae Parvulescu, Lorenz Siggel, Ulrich Müller, Thomas Frechen, Bernd Hinrichsen
-
Publication number: 20150343431Abstract: The present invention relates to a process for preparing acrylic acid comprising (i) providing a stream comprising a formaldehyde source and acetic acid and (ii) contacting this stream with an aldol condensation catalyst comprising a zeolitic material, wherein the framework structure of the zeolitic material in (ii) includes Si and O, and has a molar Al:Si ratio of 0:1 to 0.001:1, and wherein the framework structure of the zeolitic material in (ii), in addition to Si and any Al, comprises one or more elements selected from the group consisting of tetravalent elements Y other than Si and trivalent elements X other than Al.Type: ApplicationFiled: May 28, 2015Publication date: December 3, 2015Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Armin LANGE DE OLIVEIRA, Michael LEJKOWSKI, Nicolai Tonio WOERZ, Marco HARTMANN, Kazuhiko AMAKAWA, Michael GOEBEL, Ulrich MUELLER, Mathias FEYEN, Yong LIU
-
Publication number: 20150344317Abstract: A process for the post-treatment of a zeolitic material having a BEA framework structure, the process comprising (i) providing a zeolitic material having a BEA framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.Type: ApplicationFiled: October 9, 2013Publication date: December 3, 2015Applicant: BASF SEInventor: Andrei-Nicolae PARVULESCU
-
Publication number: 20150344394Abstract: A process for preparing acrylic acid, comprising (i) providing a stream S4 comprising a formaldehyde source and acetic acid; (ii) contacting stream S4 with an aldol condensation catalyst comprising a zeolitic material comprising aluminum in the framework structure to obtain a stream S6 comprising acrylic acid, the framework structure of the zeolitic material in (ii) comprising YO2 and Al2O3, and Y being a tetravalent element; where the total content of alkali metal and alkaline earth metal in the zeolitic material in (ii), calculated as alkali metal oxide and alkaline earth metal oxide, is from 0% to 0.1% by weight, based in each case on the total weight of the zeolitic material, and where the aldol condensation catalyst in (ii) comprises, outside the framework structure of the zeolitic material present therein, from 0% to 1% by weight of vanadium, based on vanadium as vanadium(V) oxide.Type: ApplicationFiled: May 28, 2015Publication date: December 3, 2015Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Armin LANGE DE OLIVEIRA, Stephan A. SCHUNK, Nicolai Tonio WOERZ, Marco HARTMANN, Kazuhiko AMAKAWA, Michael GOEBEL, Yong LIU, Michael LEJKOWSKI
-
Publication number: 20150329368Abstract: A process for the post-treatment of a zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.Type: ApplicationFiled: October 9, 2013Publication date: November 19, 2015Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Jeff YANG, Stefan MAURER, Manuela GAAB, Karsten SEIDEL, Olga GERLACH, Ulrich MUELLER
-
Patent number: 9168513Abstract: The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof.Type: GrantFiled: February 5, 2013Date of Patent: October 27, 2015Assignee: BASF SEInventors: Ulrich Mueller, Andrei-Nicolae Parvulescu, Jeff Yang, Hans-Juergen Luetzel, Georg Uhl, Stefan Dumser