Patents by Inventor Jan Eberhardt

Jan Eberhardt 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: 8772548
    Abstract: The present invention relates to a process for reacting glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst, the catalyst being activated by reducing a catalyst precursor or by reducing a passivated catalyst, which comprises effecting the reaction in the presence of a solvent and contacting the glycolaldehyde with the activated catalyst.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 8, 2014
    Assignee: BASF SE
    Inventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
  • Patent number: 8742174
    Abstract: The present invention relates to a process for preparing ethanolamines by reacting glycolaldehyde with monoethanolamine and/or diethanolamine in the presence of a catalyst.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
  • Patent number: 8710269
    Abstract: The present invention relates to a process for preparing 3-dimethylaminopropylamine (DMAPA) by reacting 3-dimethylaminopropionitrile (DMAPN) with hydrogen in the presence of a catalyst, wherein the DMAPN used has a content of 2-(dimethylaminomethyl)glutaronitrile (DGN) of 300 ppm by weight or less, based on the DMAPN used. Furthermore, the present invention relates to mixtures of DMAPN and DGN, wherein the weight ratio of DMAPN to DGN is in the range from 1 000 000:5 to 1 000 000:250.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: April 29, 2014
    Assignee: BASF SE
    Inventors: Wolfgang Mägerlein, Jan Eberhardt, Johann-Peter Melder, Ulrich Köhler, Thilo Hahn, Mirko Kreitschmann, Dominik Herbrecht
  • Patent number: 8557985
    Abstract: A process continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: October 15, 2013
    Assignee: BASF SE
    Inventors: Bram Willem Hoffer, Hartwig Voβ, Ekkehard Schwab, Udo Rheude, Gerd Kaibel, Mathias Haake, Jan Eberhardt, Michael Karcher
  • Patent number: 8497399
    Abstract: A process for preparing a diamine from a corresponding aminoalkyl nitrile, which is prepared by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, comprising the steps: a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; b) introduction of the corresponding alkenyl nitrile into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; c) reaction of the reaction stream in a first reaction region; d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction; e) discharge of the reaction stream from the second reaction region after the reaction; f) introduction of the reaction stream discharged in step (a) into a reduction region; and g) reduction of the aminoalkyl nitrile present in the reaction stream to the corresponding diamine.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: July 30, 2013
    Assignee: BASF SE
    Inventors: Jan Eberhardt, Thilo Hahn, Johann-Peter Melder, Gerhard Fritz, Volkmar Menger, Thomas Hill
  • Publication number: 20120271068
    Abstract: The present invention relates to a process for reacting glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst, the catalyst being activated by reducing a catalyst precursor or by reducing a passivated catalyst, which comprises effecting the reaction in the presence of a solvent and contacting the glycolaldehyde with the activated catalyst.
    Type: Application
    Filed: December 14, 2010
    Publication date: October 25, 2012
    Applicant: BASF SE
    Inventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
  • Publication number: 20120259139
    Abstract: The present invention relates to a process for preparing ethanolamines by reacting glycolaldehyde with monoethanolamine and/or diethanolamine in the presence of a catalyst.
    Type: Application
    Filed: December 13, 2010
    Publication date: October 11, 2012
    Applicant: BASF SE
    Inventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
  • Publication number: 20120232267
    Abstract: A process continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 13, 2012
    Applicant: BASF SE
    Inventors: Bram Willem Hoffer, Hartwig Voss, Ekkehard Schwab, Udo Rheude, Gerd Kaibel, Mathias Haake, Jan Eberhardt, Michael Karcher
  • Patent number: 8163963
    Abstract: A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 24, 2012
    Assignee: BASF SE
    Inventors: Bram Willem Hoffer, Hartwig Voβ, Ekkehard Schwab, Udo Rheude, Gerd Kaibel, Mathias Haake, Jan Eberhardt, Michael Karcher
  • Publication number: 20120071694
    Abstract: A process for preparing a diamine from a corresponding aminoalkyl nitrile, which is prepared by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, comprising the steps: a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; b) introduction of the corresponding alkenyl nitrile into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; c) reaction of the reaction stream in a first reaction region; d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction; e) discharge of the reaction stream from the second reaction region after the reaction; f) introduction of the reaction stream discharged in step (a) into a reduction region; and g) reduction of the aminoalkyl nitrile present in the reaction stream to the corresponding diamine.
    Type: Application
    Filed: October 17, 2011
    Publication date: March 22, 2012
    Applicant: BASF SE
    Inventors: JAN EBERHARDT, Thilo Hahn, Johann-Peter Melder, Gerhard Fritz, Volkmar Menger, Thomas Hill
  • Publication number: 20120029225
    Abstract: The present invention relates to a process for preparing 3-dimethylaminopropylamine (DMAPA) by reacting 3-dimethylaminopropionitrile (DMAPN) with hydrogen in the presence of a catalyst, wherein the DMAPN used has a content of 2-(dimethylaminomethyl)glutaronitrile (DGN) of 300 ppm by weight or less, based on the DMAPN used. Furthermore, the present invention relates to mixtures of DMAPN and DGN, wherein the weight ratio of DMAPN to DGN is in the range from 1 000 000:5 to 1 000 000:250.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 2, 2012
    Applicant: BASF SE
    Inventors: Wolfgang Mägerlein, Jan Eberhardt, Johann-Peter Melder, Ulrich Köhler, Thilo Hahn, Mirko Kreitschmann, Dominik Herbrecht
  • Patent number: 8063239
    Abstract: The present invention relates to a process for preparing an aminoalkyl nitrile by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, which comprises the steps (a) introduction of the corresponding monoamine into a continuously conveyed reaction stream; (b) introduction of the corresponding alkenyl nitrite into the reaction stream, with this already comprising the aminoalkyl nitrile on addition; (c) reaction of the reaction stream in a first reaction region; and (d) at least partial transfer of the reaction stream into at least one second reaction region for further reaction. The invention further relates to a process for preparing a diamine from the aminoalkyl nitrile, suitable apparatuses for carrying out the processes and their corresponding use.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: November 22, 2011
    Assignee: BASF SE
    Inventors: Jan Eberhardt, Thilo Hahn, Johann-Peter Melder, Gerhard Fritz, Volkmar Menger, Thomas Hill
  • Patent number: 8034978
    Abstract: Process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the reaction is carried out using a suspended catalyst as heterogeneous catalyst and is carried out in the semibatch mode in which the nitrogen compound as one reactant is placed in the reaction vessel and the aldehyde and/or the ketone as the other reactant is added during the course of the reaction and the aldehyde and/or the ketone is added in portions or continuously to the reaction mixture during the course of the reaction as a function of the achieved conversion of the nitrogen compound until a conversion of the nitrogen compound of at least 95% results, and all or part of the catalyst remains in the reaction vessel after the reaction batch and is reused for the next reaction batch.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: October 11, 2011
    Assignee: BASF SE
    Inventors: Jan Eberhardt, Harald Meiβner, Bram Willem Hoffer, Johann-Peter Melder, Ekkehard Schwab
  • Patent number: 8017808
    Abstract: A process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the catalyst is a coated catalyst which comprises at least one metal of group VIII of the Periodic Table of the Elements as a hydrogenating metal and additionally a promoter on an oxidic support, at least 80% of the metal of group VIII of the Periodic Table of the Elements being present in a layer between the surface of the catalyst and a penetration depth which is not more than 80% of the radius of the catalyst, calculated from the surface of the catalyst.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: September 13, 2011
    Assignee: BASF SE
    Inventors: Jan Eberhardt, Bram Willem Hoffer, Frank Haese, Johann-Peter Melder, Bernd Stein, Michael Stang, Thomas Hill, Ekkehard Schwab
  • Publication number: 20100267948
    Abstract: Process for preparing an amine by reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of primary and secondary amines in the presence of a heterogeneous catalyst, wherein the reaction is carried out using a suspended catalyst as heterogeneous catalyst and is carried out in the semibatch mode in which the nitrogen compound as one reactant is placed in the reaction vessel and the aldehyde and/or the ketone as the other reactant is added during the course of the reaction and the aldehyde and/or the ketone is added in portions or continuously to the reaction mixture during the course of the reaction as a function of the achieved conversion of the nitrogen compound until a conversion of the nitrogen compound of at least 95% results, and all or part of the catalyst remains in the reaction vessel after the reaction batch and is reused for the next reaction batch.
    Type: Application
    Filed: May 24, 2007
    Publication date: October 21, 2010
    Applicant: BASF SE
    Inventors: Jan Eberhardt, Harald Meissner, Bram Willem Hoffer, Johann-Peter Melder, Ekkehard Schwab
  • Patent number: 7754921
    Abstract: Shaped body comprising an aluminosilicate and aluminum oxide, wherein the shaped body has a molar Al/Si ratio in the range from 10 to 30 and an at least bimodal pore distribution for pores having a diameter of greater than 1 nm, with the volume of the pores of the shaped body having a diameter of greater than 10 nm corresponding to at least 40% of the total pore volume of the shaped body, process for producing it and process for the continuous preparation of methylamines by reaction of methanol and/or dimethyl ether with ammonia in the presence of a heterogeneous catalyst, wherein the abovementioned shaped bodies are used as catalyst.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: July 13, 2010
    Assignee: BASF SE
    Inventors: Marco Bosch, Roderich Röttger, Jan Eberhardt, Thomas Krug, Manfred Julius, Karl-Heínz Roβ, Theodor Weber
  • Publication number: 20100081804
    Abstract: A process is described for continuously hydrogenating unsaturated compounds, in which particles of a first hydrogenation catalyst are suspended in a liquid phase in which an unsaturated compound is dissolved, the liquid phase, in the presence of a hydrogenous gas at a first partial hydrogen pressure and at a first temperature, is conducted through a packed bubble column reactor in cocurrent counter to the direction of gravity, the effluent from the bubble column reactor is sent to a gas-liquid separation, the liquid phase is sent to a crossfiltration to obtain a retentate and a filtrate, the retentate is recycled into the bubble column reactor and the filtrate, in the presence of a hydrogenous gas at a second partial hydrogen pressure and at a second temperature, is passed over a bed of a second hydrogenation catalyst, wherein the second partial hydrogen pressure is at least 10 bar higher than the first partial hydrogen pressure.
    Type: Application
    Filed: October 16, 2006
    Publication date: April 1, 2010
    Inventors: Bram Willem Hoffer, Hartwig Voss, Ekkehard Schwab, Udo Rheude, Gerd Kaibel, Mathias Haake, Jan Eberhardt, Michael Karcher
  • Patent number: 7683214
    Abstract: A process for the preparation of benzophenonimine (BPI) of the general formula I where R1 and R2 are C1- to C4-alkoxy, C1- to C2-alkylamine and C2- to C4-dialkylamine and m and n are integers from 0 to 5 and R1 and R2, independently of one another, may be identical or different, by reacting benzophenone (BP) of the general formula II where R1, R2, m and n have the abovementioned meanings, in ammonia and in the presence of titanium dioxide, the titanium dioxide being present substantially in the anatase modification.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: March 23, 2010
    Assignee: BASF SE
    Inventors: Thilo Hahn, Frank Haese, Ulrich Köhler, Ekkehard Schwab, Johann-Peter Melder, Jan Eberhardt
  • Patent number: 7651968
    Abstract: A process for producing a shaped body comprising a microporous material and at least one silicon-comprising binder, which comprises the steps (I) preparation of a mixture comprising the microporous material, the binder and a lubricant, (II) mixing and densification of the mixture, (III) shaping of the densified mixture to give a shaped body and (IV) calcination of the shaped body, wherein a silicone resin having a softening point of ?30° C. is used as binder, shaped bodies which can be produced by this process, their use as catalyst, in particular in organic synthesis and very particularly preferably in a process for preparing methylamines.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 26, 2010
    Assignee: BASF SE
    Inventors: Marco Bosch, Jan Eberhardt, Roderich Röttger
  • Patent number: D749421
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: February 16, 2016
    Assignee: Societe des Produits Nestle S.A.
    Inventors: Bhavesh Nandha, John Hynds, Jan Eberhardt