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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Patent number: 9725428Abstract: 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: GrantFiled: July 16, 2014Date of Patent: August 8, 2017Assignees: 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
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Patent number: 9695099Abstract: 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: GrantFiled: December 2, 2015Date of Patent: July 4, 2017Assignee: BASF SEInventors: Yong Liu, Martin Dieterle, Nicolai Tonio Woerz, Andrei-Nicolae Parvulescu, Michael Lejkowski, Johannes Lieberknecht, Christian Walsdorff, Kazuhiko Amakawa
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Patent number: 9688648Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.Type: GrantFiled: July 16, 2014Date of Patent: June 27, 2017Assignees: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique Teles, Bianca Seelig, Dominic Riedel, Philip Kampe, Daniel Urbanczyk, Markus Weber, Ulrich Mueller, Andrei-Nicolae Parvulescu, Alexander Schroeder, Meinolf Weidenbach, Werner Witzl
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Publication number: 20170128916Abstract: An oxidic composition comprising vanadium, tungsten, phosphorus, oxygen and optionally tin, where the molar ratio of phosphorus to the sum total of vanadium, tungsten and any tin in the oxidic composition is in the range from 1.4:1 to 2.4:1.Type: ApplicationFiled: November 10, 2016Publication date: May 11, 2017Applicant: BASF SEInventors: Michael LEJKOWSKI, Yong LIU, Marco HARTMANN, Till Christian BRUEGGEMANN, Lukas SCHULZ, Johannes LIEBERKNECHT, Armin LANGE DE OLIVEIRA, Stephan A. SCHUNK, Andrei-Nicolae PARVULESCU, Martin DIETERLE, Nicolai Tonio WOERZ, Rolf TOMPERS, Robert MUELLER
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Patent number: 9636668Abstract: Described is a process for the production of a zeolitic material having an MFI, MEL, and/or MWW-type framework structure comprising YO2 and X2O3. The process comprises (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and one or more solvents; (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having an MFI, MEL and/or MWW-type framework structure; and (3) impregnating the zeolitic material obtained in step (2) with one or more elements selected from the group of alkaline earth metals. Y is a tetravalent element, and X is a trivalent element. The mixture crystallized in step (2) contains 3 wt.-% or less of one or more elements M based on 100 wt-% of YO2, wherein M stands for sodium.Type: GrantFiled: November 11, 2013Date of Patent: May 2, 2017Assignee: BASF SEInventors: Manuela Gaab, Ulrich Müller, Milan Kostur, Kirsten Spannhoff, Kerem Bay, Andrei-Nicolae Parvulescu
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Patent number: 9598326Abstract: The present invention relates to a process for the conversion of oxygenates to olefins comprising (i) providing a gas stream comprising one or more oxygenates; and (ii) contacting the gas stream with a catalyst; wherein the catalyst comprises a zeolitic material having an MFI, MEL, and/or MWW-type framework structure comprising YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, said zeolitic material being obtainable and/or obtained according to a method comprising (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and one or more solvents; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having an MFI, MEL and/or MWW-type framework structure; wherein the mixture crystallized in step (2) contains 3 wt.-% or less of the one or more elements M based on 100 wt.-% of YO2, wherein M stands for sodium.Type: GrantFiled: November 11, 2013Date of Patent: March 21, 2017Assignee: BASF SEInventors: Manuela Gaab, Ulrich Müller, Milan Kostur, Kirsten Spannhoff, Kerem Bay, Andrei-Nicolae Parvulescu
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Publication number: 20170044421Abstract: The present invention relates to an emulsion comprising: a) water, b) at least one crude oil and c) at least one layered double hydroxide of general formula (I), whereby the layered double hydroxide of general formula (I) is present in the form of solid particles. The present invention further relates to a process for the preparation of the emulsion and the use of the same.Type: ApplicationFiled: April 20, 2015Publication date: February 16, 2017Inventors: Andrei-Nicolae PARVULESCU, Riichiro KIMURA, Stefam MAURER, Roelf-Peter BAUMANN, Lorenz SIGGEL, Ulrich MÜLLER
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Publication number: 20170037296Abstract: The present invention relates to a process for recovering oil from an oil-reservoir comprising at least the steps of a) providing solid particles and water, whereby the solid particles comprise at least one layered double hydroxide of general formula (I), b) combining the solid particles and water with the oil in the oil-reservoir, c) mixing the components of step b) to obtain an emulsion containing droplets, wherein the emulsion comprises the solid particles, water and oil, d) transferring the emulsion out of the oil-reservoir, and e) recovering the solid particles of the emulsion.Type: ApplicationFiled: April 20, 2015Publication date: February 9, 2017Inventors: Riichiro KIMURA, Andrei-Nicolae PARVULESCU, Stefan MAURER, Roelf-Peter BAUMANN, Lolenz SIGGEL, Ulrich MÜLLER
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Patent number: 9540305Abstract: 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: GrantFiled: May 28, 2015Date of Patent: January 10, 2017Assignee: 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
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Publication number: 20170001874Abstract: The present invention relates to a process for the preparation of a zeolitic material comprising the steps of: (1) providing a mixture comprising one or more sources for YO2 and one or more alkenyltrialkylammonium cation R1R2R3R4N+-containing compounds as structure directing agent; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material; wherein Y is a tetravalent element, and wherein R1, R2, and R3 independently from one another stand for alkyl; and R4 stands for alkenyl, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.Type: ApplicationFiled: September 13, 2016Publication date: January 5, 2017Applicant: BASF SEInventors: Mathias FEYEN, Ulrich MÜLLER, Andrei-Nicolae PARVULESCU, Bernd Bastian SCHAACK, Sebastian AHRENS, Dirk GERHARD, Sunghee SON, Gabriele IFFLAND, Bianca SEELIG
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Publication number: 20160362387Abstract: 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: August 24, 2016Publication date: December 15, 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
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Patent number: 9518211Abstract: 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: GrantFiled: January 15, 2014Date of Patent: December 13, 2016Assignees: BASF SE, Wintershall Holding GmbHInventors: Riichiro Kimura, Stefan Maurer, Andrei-Nicolae Parvulescu, Lorenz Siggel, Ulrich Müller, Thomas Frechen, Bernd Hinrichsen
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Publication number: 20160332152Abstract: The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.Type: ApplicationFiled: July 16, 2014Publication date: November 17, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Joaquim Henrique TELES, Bianca SEELIG, Philip KAMPE, Markus WEBER, Peter RESCH, Christian BARTOSCH, Dominic RIEDEL, Daniel URBANCZYK, Alexander SCHROEDER, Ulrike WEGERLE
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Patent number: 9475041Abstract: The present invention relates to a process for the preparation of a zeolitic material comprising the steps of: (1) providing a mixture comprising one or more sources for YO2 and one or more alkenyltrialkylammonium cation R1R2R3R4N+-containing compounds as structure directing agent; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material; wherein Y is a tetravalent element, and wherein R1, R2, and R3 independently from one another stand for alkyl; and R4 stands for alkenyl, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.Type: GrantFiled: April 24, 2013Date of Patent: October 25, 2016Assignee: BASF SEInventors: Mathias Feyen, Ulrich Mueller, Andrei-Nicolae Parvulescu, Bernd Bastian Schaack, Sebastian Ahrens, Dirk Gerhard, Sunghee Son, Gabriele Iffland, Bianca Seelig
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Publication number: 20160279621Abstract: A process for preparing a tin-containing zeolitic material having a BEA framework structure comprising providing a zeolitic material having a BEA framework structure having vacant tetrahedral framework sites, providing a tin-ion source in solid form, incorporating tin into the zeolitic material via solid-state ion exchange, calcining the zeolitic material, and treating the calcined zeolitic material with an aqueous solution having a pH of at most 5.Type: ApplicationFiled: November 5, 2014Publication date: September 29, 2016Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MÜLLER, Joaquim H. TELES, Nicolas VAUTRAVERS, George UHL, Ive HERMANS, Patrick WOLF, Ceri HAMMOND
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Patent number: 9446390Abstract: 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: GrantFiled: May 28, 2015Date of Patent: September 20, 2016Assignee: 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
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Publication number: 20160264543Abstract: A process for the oxidation of an organic carbonyl compound comprising reacting the compound, optionally in the presence of a solvent, with hydrogen peroxide in the presence of a catalyst comprising a tin-containing zeolitic material and at least one potassium salt.Type: ApplicationFiled: November 5, 2014Publication date: September 15, 2016Inventors: Nicolas VAUTRAVERS, Joaquim H. TELES, Andrei-Nicolae PARVULESCU, Ulrich MÜLLER
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Publication number: 20160256859Abstract: A process for preparing a tin-containing zeolitic material having an MWW-type framework structure comprising providing a zeolitic material having an MWW-type framework structure having vacant tetrahedral framework sites, providing a tin-ion source in solid form, and incorporating tin into the zeolitic material via solid-state ion exchange.Type: ApplicationFiled: November 5, 2014Publication date: September 8, 2016Inventors: Andrei-Nicolae Parvulescu, Ulrich MÜLLER, Georg UHL, Joaquim TELES, Nicolas VAUTRAVERS, Dominic RIEDEL
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Publication number: 20160250624Abstract: The present invention relates to A process for the production of a molding, comprising (I) providing a zeolitic material; (II) mixing the zeolitic material provided in step (I) with one or more binders; (III) kneading of the mixture obtained in step (II); (IV) molding of the kneaded mixture obtained in step (III) to obtain one or more moldings; (V) drying of the one or more moldings obtained in step (IV); and (VI) calcining of the dried molding obtained in step (V); wherein the zeolitic material provided in step (I) displays a water adsorption ranging from 1 to 15 wt.-% when exposed to a relative humidity of 85%, as well as to a molding obtainable or obtained according to the inventive process in addition to a molding per se and to their respective use.Type: ApplicationFiled: October 22, 2014Publication date: September 1, 2016Applicant: BASF SEInventors: Andrei-Nicolae PARVULESCU, Ulrich MUELLER, Hans-Juergen LUETZEL, Joaquim Henrique TELES, Dominic RIEDEL, Bianca SEELIG, Daniel URBANCZYK, Ulrike WEGERLE, Michael HESSE, Andreas WALCH, Volker BENDIG, Veit STEGMANN, Henning ALTHOEFER, Boris GASPAR, Frank STALLMACH, Anne Kristin PUSCH
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Publication number: 20160185741Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.Type: ApplicationFiled: July 16, 2014Publication date: June 30, 2016Applicants: BASF SE, DOW GLOBAL TECHNOLOGIES LLCInventors: Joaquim TELES, Bianca SEELIG, Dominic RIEDEL, Philip KAMPE, Daniel URBANCZYK, Markus WEBER, Ulrich MUELLER, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Meinolf WEIDENBACH, Werner WITZL