Patents by Inventor Ortmund Lang

Ortmund Lang 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).

  • Patent number: 10730823
    Abstract: 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: Grant
    Filed: December 11, 2017
    Date of Patent: August 4, 2020
    Assignee: BASF SE
    Inventors: Ortmund Lang, Bernd Metzen, Claus Hechler
  • Publication number: 20200239400
    Abstract: A process for continuously preparing a butyl acrylate H2C?CH—C(?O)OR, with R=n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is converted under dehydrating and esterifying conditions in the presence of the corresponding butanol R—OH in a reactor with a rectification column and butyl acrylate formed, unconverted butanol and water used and formed are distilled off overhead as a ternary azeotrope, after separation into a liquid aqueous phase and liquid organic phase each of the aqueous and organic phases is at least partly discharged, and the organic phase comprising the butyl acrylate and the butanol is subjected to distillative separation.
    Type: Application
    Filed: August 13, 2018
    Publication date: July 30, 2020
    Applicant: BASF SE
    Inventors: Ortmund LANG, Tim BLASCHKE, Christian RAITH, Michael SCHAFRANKA, Claus HECHLER
  • Publication number: 20200094160
    Abstract: 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 bottommost
    Type: Application
    Filed: December 11, 2017
    Publication date: March 26, 2020
    Applicant: BASF SE
    Inventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
  • Publication number: 20200095185
    Abstract: 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: Application
    Filed: December 10, 2017
    Publication date: March 26, 2020
    Applicant: BASF SE
    Inventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
  • Patent number: 10569192
    Abstract: A distillation device comprising a column for separating a feed stream into a head product stream, a bottom product stream and optionally one or more side extraction streams, having three or more cells in 5 series through which fluid flows, wherein at least the first cell is integrated into the bottom of the column, for multi-stage heating and partial evaporation of the liquid flowing through the cells with the exception of the liquid from the last cell in an evaporation stage.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 25, 2020
    Assignee: BASF SE
    Inventors: Norbert Asprion, Bernd Heida, Jan-Oliver Weidert, Ortmund Lang
  • Publication number: 20190330137
    Abstract: 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 least
    Type: Application
    Filed: December 11, 2017
    Publication date: October 31, 2019
    Applicant: BASF SE
    Inventors: Ortmund LANG, Bernd METZEN, Claus HECHLER
  • Patent number: 10252970
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 9, 2019
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20180361270
    Abstract: A distillation device comprising a column for separating a feed stream into a head product stream, a bottom product stream and optionally one or more side extraction streams, having three or more cells in 5 series through which fluid flows, wherein at least the first cell is integrated into the bottom of the column, for multi-stage heating and partial evaporation of the liquid flowing through the cells with the exception of the liquid from the last cell in an evaporation stage.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 20, 2018
    Applicant: BASF SE
    Inventors: Norbert ASPRION, Bernd HEIDA, Jan-Oliver WEIDERT, Ortmund LANG
  • Patent number: 9809526
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid, wherein an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is converted to acrylic acid in the liquid phase in a first step and aqueous acrylic acid is distilled out of the liquid phase, and the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase in a second step.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 7, 2017
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Marta Zajaczkowski-Fischer, Marco Hartmann
  • Patent number: 9630900
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 25, 2017
    Assignee: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20170081268
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid, wherein an aqueous mixture of 3-hydroxypropionic acid and oligomeric 3-hydroxypropionic acid is converted to acrylic acid in the liquid phase in a first step and aqueous acrylic acid is distilled out of the liquid phase, and the aqueous acrylic acid is separated by distillation into an acrylic acid-rich phase and a water-rich phase in a second step.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 23, 2017
    Inventors: Tim Blaschke, Ortmund Lang, Marta Zajaczkowski-Fischer, Marco Hartmann
  • Publication number: 20160221915
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the liquid phase comprises an inert organic solvent 1.
    Type: Application
    Filed: September 2, 2014
    Publication date: August 4, 2016
    Applicant: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Publication number: 20160221916
    Abstract: The invention relates to a process for dehydrating aqueous 3-hydroxypropionic acid to acrylic acid in the liquid phase, wherein aqueous acrylic acid is removed continuously from the liquid phase and the aqueous 3-hydroxypropionic acid and/or the liquid phase have a high content of oligomeric 3-hydroxypropionic acid.
    Type: Application
    Filed: August 21, 2014
    Publication date: August 4, 2016
    Applicant: BASF SE
    Inventors: Tim Blaschke, Ortmund Lang, Nicolai Tonio Wörz, Christian Raith, Marco Hartmann, Marta Zajaczkowski-Fischer
  • Patent number: 9388118
    Abstract: A continuous process for preparing (meth)acrylates of C10-alcohol mixtures by reaction of glacial (meth)acrylic acid with an isomer mixture of C10-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C10-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, and the use of a diester of dicarboxylic acids which have been esterified with N-oxyl-containing compounds as polymerization inhibitors in such a process.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: July 12, 2016
    Assignee: BASF SE
    Inventors: Ulrich Jaeger, Volker Schliephake, Ortmund Lang, Jochen Petzoldt, Tobias Johannes Korn, Virginie Bette, Claus Hechler
  • Patent number: 9260402
    Abstract: A process is described for the preparation of 5-hydroxymethylfurfural (HMF), which comprises the following steps: provision or preparation of a starting mixture, comprising one, two or more starting compounds selected from the group consisting of hexoses, oligosaccharides comprising hexose units, and polysaccharides comprising hexose units, one, two or more organic salts with a melting point <180° C. and a boiling point >200° C. at 1013.25 hPa, optionally additionally one or more catalysts for the conversion of the one starting compound or at least one of the two or more starting compounds to 5-hydroxymethylfurfural (HMF), optionally water, optionally further substances, adjustment of reaction conditions such that an amount of the starting compound or starting compounds converts to HMF.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: February 16, 2016
    Assignee: BASF SE
    Inventors: Benoit Blank, Alois Kindler, Peter Bassler, Markus Piepenbrink, Ortmund Lang, Carmen Feldner
  • Publication number: 20150329477
    Abstract: 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-dimethyl
    Type: Application
    Filed: December 18, 2013
    Publication date: November 19, 2015
    Applicant: BASF SE
    Inventors: Ortmund LANG, Norbert ASPRION, Axel BINDER, Bernd METZEN, Christof Wilhelm WIGBERS, Petr KUBANEK, Thomas STEINHILBER
  • Publication number: 20140371473
    Abstract: A process is described for the preparation of 5-hydroxymethylfurfural (HMF), which comprises the following steps: provision or preparation of a starting mixture, comprising one, two or more starting compounds selected from the group consisting of hexoses, oligosaccharides comprising hexose units, and polysaccharides comprising hexose units, one, two or more organic salts with a melting point <180° C. and a boiling point >200° C. at 1013.25 hPa, optionally additionally one or more catalysts for the conversion of the one starting compound or at least one of the two or more starting compounds to 5-hydroxymethylfurfural (HMF), optionally water, optionally further substances, adjustment of reaction conditions such that an amount of the starting compound or starting compounds converts to HMF.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Applicant: BASF SE
    Inventors: Benoit Blank, Alois Kindler, Peter Bassler, Markus Piepenbrink, Ortmund Lang, Carmen Feldner
  • Publication number: 20140135523
    Abstract: A continuous process for preparing (meth)acrylates of C10-alcohol mixtures by reaction of glacial (meth)acrylic acid with an isomer mixture of C10-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C10-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, and the use of a diester of dicarboxylic acids which have been esterified with N-oxyl-containing compounds as polymerization inhibitors in such a process.
    Type: Application
    Filed: September 27, 2013
    Publication date: May 15, 2014
    Applicant: BASF SE
    Inventors: Ulrich JAEGER, Volker SCHLIEPHAKE, Ortmund LANG, Jochen PETZOLDT, Tobias Johannes KORN, Virginie BETTE, Claus HECHLER
  • Patent number: 7959766
    Abstract: Process for recovering cyclododecatriene (CDT) from a solution containing CDT and high boilers such as deactivated catalyst and polymers, which includes feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator and there reducing the CDT content of the liquid phase by partial evaporation and discharging a gaseous product stream having an increased concentration of CDT.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: June 14, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Rumpf, Ortmund Lang, Andrea Haunert, Thomas Genger, Anton Meier
  • Patent number: 7872131
    Abstract: Process for preparing a solution of pure triethylenediamine (TEDA), in which TEDA is vaporized, the gaseous TEDA is passed into a liquid solvent 1 (quench) and the TEDA is crystallized from the resulting solution and separated off (solid-liquid separation), wherein the crystalline TEDA obtained is dissolved in a solvent 2 and a stripping gas is passed through the resulting solution (stripping).
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: January 18, 2011
    Assignee: BASF SE
    Inventors: Ortmund Lang, Matthias Frauenkron