Patents by Inventor Bernd METZEN
Bernd METZEN 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: 20230249098Abstract: The invention relates to an apparatus for carrying out mass transfer processes, comprising a column having at least two inlet pipes for introducing a gaseous phase, where separation-active internals are accommodated in the column and a column section extends from the at least two inlet pipes to the separation-active internals, in which section a coverage of a cross-sectional area of the column is less than 25%, based on the total cross-sectional area, and where the at least two inlet pipes have a height offset which corresponds to not more than three times an inlet pipe diameter and the at least two inlet pipes are at an angle (?) of from 60° to 150° to one another and have asymmetry with respect to one another. The invention further relates to a use of the apparatus and also a method for designing the apparatus.Type: ApplicationFiled: June 17, 2021Publication date: August 10, 2023Inventors: Bernd METZEN, Christian KUNKELMANN, Ortmund LANG, Marvin KRAMP, Claus HECHLER
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Patent number: 11180467Abstract: 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: GrantFiled: April 13, 2018Date of Patent: November 23, 2021Assignee: BASF SEInventors: 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
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Patent number: 10906862Abstract: A process for isolating pure butyl acrylate from crude butyl acrylate, which is carried out in a dividing wall column having separation-active internals and a vaporizer, and in which: a dividing wall is arranged in a longitudinal direction of the column to form an upper joint column region, a lower joint column region, an inflow section having a side feed point and an offtake section having a side offtake point; a ratio of an amount of liquid at an upper end of the dividing wall going to an enrichment section and a stripping section of the column is set in the range from 1:0.2 to 1:5; and a ratio of an amount of vapor streams at a lower end of the dividing wall going to the stripping section and the enrichment section of the column is set in a range from 1:0.5 to 1:2.0.Type: GrantFiled: December 11, 2017Date of Patent: February 2, 2021Assignee: BASF SEInventors: Ortmund Lang, Bernd Metzen, Claus Hechler
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Patent number: 10894223Abstract: Process for isolating pure 2-ethylhexyl acrylate or pure 2-propylheptyl acrylate from the corresponding crude alkyl acrylate by distillation, wherein the process is carried out in a dividing wall column (1) which has separation-active internals and vaporizer (7) and in which a dividing wall (8) is arranged in the longitudinal direction of the column to form an upper joint column region (9), a lower joint column region (14), an inflow section (10, 12) having a side feed point (2) and an offtake section (11, 13) having a side offtake point (3), the column has a number of theoretical plates in the range from 10 to 60, where the number of theoretical plates of the dividing wall column (1) relates to the sum of the theoretical plates in the joint upper column region (9), the joint lower column region (14) and the inflow section (10, 12), the side feed point (2) for the corresponding crude alkyl acrylate is arranged at a theoretical plate in the region commencing at least two theoretical plates above the bottommostType: GrantFiled: December 11, 2017Date of Patent: January 19, 2021Assignee: BASF SEInventors: Ortmund Lang, Bernd Metzen, Claus Hechler
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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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Patent number: 10730823Abstract: A process for isolating pure tert-butyl (meth)acrylate from crude tert-butyl (meth)acrylate by distillation, wherein the process is carried out in a dividing wall column having separation-active internals and a vaporizer and in which a dividing wall is arranged in the longitudinal direction of the column to form an upper joint column region, a lower joint column region, an inflow section having a side feed point, and an offtake section having a side offtake point, where the column has from 20-80 theoretical plates and the ratio of the amount of liquid at the upper end of the dividing wall going to the enrichment section and the stripping section of the column is set in the range from 1:0.2 to 1:5.Type: GrantFiled: December 11, 2017Date of Patent: August 4, 2020Assignee: BASF SEInventors: Ortmund Lang, Bernd Metzen, Claus Hechler
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Patent number: 10676451Abstract: Disclosed is a process for purifying propylene oxide. A stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing one or more of acetone and propionaldehyde is provided. Propylene oxide is separated from S0 by subjecting S0 to distillation in a first distillation unit, obtaining a gaseous top stream S1c enriched in propylene oxide, a liquid bottom stream S1a enriched in acetonitrile and water, and a side stream S1b containing propylene oxide and enriched in the carbonyl compound; reacting the carbonyl compound in S1b with an organic compound containing an amino group to obtain a reaction product; separating propylene oxide from the reaction product in a second distillation unit, obtaining a gaseous top stream S3a enriched in propylene oxide and a liquid bottoms stream S3b enriched in the reaction product; and introducing stream S3a into the first distillation unit.Type: GrantFiled: July 19, 2017Date of Patent: June 9, 2020Assignees: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique Teles, Marvin Kramp, Christian Mueller, Nicolai Tonio Woerz, Bernd Metzen, Tobias Keller, Dominic Riedel, Heiner Schelling, Markus Weber, Daniel Urbanczyk, Andrei-Nicolae Parvulescu, Ulrike Wegerle, Ulrich Mueller, Meinolf Weidenbach, Werner J. Witzl
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Publication number: 20200094160Abstract: Process for isolating pure 2-ethylhexyl acrylate or pure 2-propylheptyl acrylate from the corresponding crude alkyl acrylate by distillation, wherein the process is carried out in a dividing wall column (1) which has separation-active internals and vaporizer (7) and in which a dividing wall (8) is arranged in the longitudinal direction of the column to form an upper joint column region (9), a lower joint column region (14), an inflow section (10, 12) having a side feed point (2) and an offtake section (11, 13) having a side offtake point (3), the column has a number of theoretical plates in the range from 10 to 60, where the number of theoretical plates of the dividing wall column (1) relates to the sum of the theoretical plates in the joint upper column region (9), the joint lower column region (14) and the inflow section (10, 12), the side feed point (2) for the corresponding crude alkyl acrylate is arranged at a theoretical plate in the region commencing at least two theoretical plates above the bottommostType: ApplicationFiled: December 11, 2017Publication date: March 26, 2020Applicant: BASF SEInventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
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Publication number: 20200095185Abstract: A process for isolating pure butyl acrylate from crude butyl acrylate, which is carried out in a dividing wall column having separation-active internals and a vaporizer, and in which: a dividing wall is arranged in a longitudinal direction of the column to form an upper joint column region, a lower joint column region, an inflow section having a side feed point and an offtake section having a side offtake point; a ratio of an amount of liquid at an upper end of the dividing wall going to an enrichment section and a stripping section of the column is set in the range from 1:0.2 to 1:5; and a ratio of an amount of vapor streams at a lower end of the dividing wall going to the stripping section and the enrichment section of the column is set in a range from 1:0.5 to 1:2.0.Type: ApplicationFiled: December 10, 2017Publication date: March 26, 2020Applicant: BASF SEInventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
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Patent number: 10544116Abstract: Disclosed herein is a process for purifying propylene oxide, including the steps of: (i) providing a stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing a carbonyl group —C(?O)—; and (ii) separating propylene oxide from the stream S0 by subjecting the stream S0 to distillation conditions in a distillation column to obtain a gaseous top stream S1c which is enriched in propylene oxide compared to the stream S0, a liquid bottoms stream S1a which is enriched in acetonitrile and water compared to the stream S0, and a side stream S1b containing propylene oxide which is enriched in the carbonyl compound compared to the stream S0.Type: GrantFiled: July 19, 2017Date of Patent: January 28, 2020Assignee: BASF SEInventors: Joaquim Henrique Teles, Marvin Kramp, Christian Mueller, Nicolai Tonio Woerz, Bernd Metzen, Tobias Keller, Dominic Riedel, Markus Weber, Daniel Urbanczyk, Andrei-Nicolae Parvulescu, Ulrike Wegerle, Ulrich Mueller
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Publication number: 20190330137Abstract: Process for isolating pure tert-butyl (meth)acrylate from crude tert-butyl (meth)acrylate by distillation, wherein the process is carried out in a dividing wall column (1) which has separation-active internals and vaporizer (7) and in which a dividing wall (8) is arranged in the longitudinal direction of the column to form an upper joint column region (9), a lower joint column region (14), an inflow section (10, 12) having a side feed point (2) and an offtake section (11, 13) having a side offtake point (3), the column has a number of theoretical plates in the range from 20 to 80, where the number of theoretical plates of the dividing wall column (1) relates to the sum of the theoretical plates in the joint upper column region (9), the joint lower column region (14) and the inflow section (10, 12), the side feed point (2) for the crude tert-butyl (meth)acrylate is arranged at a theoretical plate in the region commencing at least two theoretical plates above the bottommost theoretical plate and ending at leastType: ApplicationFiled: December 11, 2017Publication date: October 31, 2019Applicant: BASF SEInventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
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Publication number: 20190322634Abstract: Disclosed is a process for purifying propylene oxide. A stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing one or more of acetone and propionaldehyde is provided. Propylene oxide is separated from S0 by subjecting S0 to distillation in a first distillation unit, obtaining a gaseous top stream S1c enriched in propylene oxide, a liquid bottom stream S1a enriched in acetonitrile and water, and a side stream S1b containing propylene oxide and enriched in the carbonyl compound; reacting the carbonyl compound in S1b with an organic compound containing an amino group to obtain a reaction product; separating propylene oxide from the reaction product in a second distillation unit, obtaining a gaseous top stream S3a enriched in propylene oxide and a liquid bottoms stream S3b enriched in the reaction product; and introducing stream S3a into the first distillation unit.Type: ApplicationFiled: July 19, 2017Publication date: October 24, 2019Applicants: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique TELES, Marvin KRAMP, Christian MUELLER, Nicolai Tonio WOERZ, Bernd METZEN, Tobias KELLER, Dominic RIEDEL, Heiner SCHELLING, Markus WEBER, Daniel URBANCZYK, Andrei-Nicolae PARVULESCU, Ulrike WEGERLE, Ulrich MUELLER, Meinolf WEIDENBACH, Werner J. WITZI
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Patent number: 10435381Abstract: The present invention is related to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, 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, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, organic solvent, and propene; (iv) separating propene from the effluent stream by distillation, comprising (iv.Type: GrantFiled: July 19, 2017Date of Patent: October 8, 2019Assignees: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique Teles, Marvin Kramp, Christian Mueller, Nicolai Tonio Woerz, Bernd Metzen, Tobias Keller, Dominic Riedel, Heiner Schelling, Markus Weber, Daniel Urbanczyk, Andrei-Nicolae Parvulescu, Ulrike Wegerle, Ulrich Mueller, Meinolf Weidenbach, Werner J. Witzl, Karsten Luecke
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Publication number: 20190210989Abstract: Disclosed herein is a process for purifying propylene oxide, including the steps of: (i) providing a stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing a carbonyl group —C(?O)—; and (ii) separating propylene oxide from the stream S0 by subjecting the stream S0 to distillation conditions in a distillation column to obtain a gaseous top stream S1c which is enriched in propylene oxide compared to the stream S0, a liquid bottoms stream S1a which is enriched in acetonitrile and water compared to the stream S0, and a side stream S1b containing propylene oxide which is enriched in the carbonyl compound compared to the stream S0.Type: ApplicationFiled: July 19, 2017Publication date: July 11, 2019Applicant: BASF SEInventors: Joaquim Henrique TELES, Marvin KRAMP, Christian MUELLER, Nicolai Tonio WOERZ, Bernd METZEN, Tobias KELLER, Dominic RIEDEL, Markus WEBER, Daniel URBANCZYK, Andrei-Nicolae PARVULESCU, Ulrike WEGERLE, Ulrich MUELLER
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Publication number: 20190169149Abstract: The present invention is related to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, 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, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, organic solvent, and propene; (iv) separating propene from the effluent stream by distillation, comprising (iv.Type: ApplicationFiled: July 19, 2017Publication date: June 6, 2019Applicants: BASF SE, Dow Global Technologies LLCInventors: Joaquim Henrique TELES, Marvin KRAMP, Christian MUELLER, Nicolai Tonio WOERZ, Bernd METZEN, Tobias KELLER, Dominic RIEDEL, Heiner SCHELLING, Markus WEBER, Daniel URBANCZYK, Andrei-Nicolae PARVULESCU, Ulrike WEGERLE, Ulrich MUELLER, Meinolf WEIDENBACH, Werner J. WITZL, Karsten LUECKE
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Publication number: 20150329477Abstract: What is proposed is a continuous process for discharging a solid, salt-containing phase comprising alkali metal acetates and/or alkaline earth metal acetates from the product mixture from the preparation of N,N-dimethylacetamide (DMAC) by reaction of methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a catalyst comprising N,N-dimethylacetamide (DMAC), methyl acetate (MeOAc), dimethylamine (DMA) and a catalyst, having the following process steps: level-regulated feeding of the product mixture as feed stream into an evaporation vessel of a forced circulation evaporator, flash evaporation of volatile components of the product mixture in the forced circulation evaporator to form a vapor phase comprising N,N-dimethylacetamide (DMAC) and precipitation of a solid, salt-containing phase comprising alkali metal acetates and/or alkaline earth metal acetates, recycling of the volatile components of the product mixture obtained after the flash evaporation, removal of a vapor phase comprising N,N-dimethylType: ApplicationFiled: December 18, 2013Publication date: November 19, 2015Applicant: BASF SEInventors: Ortmund LANG, Norbert ASPRION, Axel BINDER, Bernd METZEN, Christof Wilhelm WIGBERS, Petr KUBANEK, Thomas STEINHILBER