Patents by Inventor Stephanie Jaegli

Stephanie Jaegli 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: 10995057
    Abstract: The present invention relates to a process for hydrogenating nitriles with hydrogen in the presence of a ZrO2-supported ruthenium catalyst.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: May 4, 2021
    Assignee: BASF SE
    Inventors: Christian Eidamshaus, Thomas Krug, Johann-Peter Melder, Joerg Pastre, Regine Helga Bebensee, Stephanie Jaegli
  • Publication number: 20200317603
    Abstract: A process for stabilizing monoalkyl-substituted diaminocyclohexanes, the process containing: adding a reductant and optionally water to a first composition containing a monoalkyl-substituted diaminocyclohexane and optionally water to obtain a second composition, wherein the second composition contains the reductant, the monoalkyl-substituted diaminocyclohexane and additionally at least 0.05% by weight of water based on the total weight of the second composition.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 8, 2020
    Inventors: Stephanie JAEGLI, Martin ERNST, Alexander PANCHENKO, Frank HETTCHE, Bjoern LUDOLPH
  • Publication number: 20190169112
    Abstract: The present invention relates to a process for hydrogenating nitriles with hydrogen in the presence of a ZrO2-supported ruthenium catalyst.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 6, 2019
    Applicant: BASF SE
    Inventors: Christian EIDAMSHAUS, Thomas KRUG, Johann-Peter MELDER, Joerg PASTRE, Regine Helga BEBENSEE, Stephanie JAEGLI
  • Patent number: 9914693
    Abstract: The present invention relates to a process for preparing ethylenediamine (EDA), where the process comprises the steps a) to c). In step a), formaldehyde is reacted with hydrocyanic acid (HCN) to form formaldehyde cyanohydrin (FACH), where the hydrocyanic acid is completely free or largely free of sulfur dioxide (SO2). The FACH prepared in this way is reacted with ammonia (NH3) to form aminoacetonitrile (AAN) in step b), whereupon a hydrogenation of AAN in the presence of a catalyst to form EDA is carried out in step c).
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 13, 2018
    Assignee: BASF SE
    Inventors: Hermann Luyken, Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka, Barbara Becker, Robert Baumann, Johann-Peter Melder, Boris Buschhaus, Thomas Krug
  • Patent number: 9828329
    Abstract: The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1).
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: November 28, 2017
    Assignee: BASF SE
    Inventors: Hermann Luyken, Stephanie Jaegli, Michael Lorenz, Gordon Brasche, Markus Jegelka, Barbara Becker, Robert Baumann, Johann-Peter Melder, Boris Buschhaus, Thomas Krug
  • Publication number: 20170217874
    Abstract: The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1).
    Type: Application
    Filed: March 11, 2015
    Publication date: August 3, 2017
    Applicant: BASF SE
    Inventors: Hermann LUYKEN, Stephanie JAEGLI, Michael LORENZ, Gordon BRASCHE, Markus JEGELKA, Barbara BECKER, Robert BAUMANN, Johann-Peter MELDER, Boris BUSCHHAUS, Thomas KRUG
  • Patent number: 9695121
    Abstract: The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: July 4, 2017
    Assignee: BASF SE
    Inventors: Stephanie Jaegli, Thomas Schmidt, Alfred Oftring, Alexander Panchenko, Kirsten Dahmen, Oliver Molt
  • Publication number: 20160304445
    Abstract: The present invention relates to 2-N,N-(bis-2-aminoalkyl)-1,2-alkyldiamine derivatives of formula (I) as such, to a process for preparing the 2-N,N-(bis-2-aminoalkyl)-1,2-alkyldiamine derivatives, to the use of the 2-N,N-(bis-2-aminoalkyl)-1,2-alkyldiamine derivatives as hardeners for epoxy resins, as an intermediate in the preparation of triisocyanates, as initiators for polyetherols and/or as monomers for the preparation of polyamides, to triisocyanates derived from the 2-N,N-(bis-2-aminoalkyl)-1,2-alkyldiamine derivatives of formula (I) and also to a process for preparing these triisocyanates.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 20, 2016
    Applicant: BASF SE
    Inventors: Stephanie JAEGLI, Monika CHARRAK, Alexander PANCHENKO, Thomas SCHMIDT, Johann-Peter MELDER
  • Publication number: 20160009633
    Abstract: The present invention relates to a process for preparing ethylenediamine (EDA), where the process comprises the steps a) to c). In step a), formaldehyde is reacted with hydrocyanic acid (HCN) to form formaldehyde cyanohydrin (FACH), where the hydrocyanic acid is completely free or largely free of sulfur dioxide (SO2). The FACH prepared in this way is reacted with ammonia (NH3) to form aminoacetonitrile (AAN) in step b), whereupon a hydrogenation of AAN in the presence of a catalyst to form EDA is carried out in step c).
    Type: Application
    Filed: February 12, 2014
    Publication date: January 14, 2016
    Inventors: Hermann LUYKEN, Stephanie JAEGLI, Michael LORENZ, Gordon BRASCHE, Markus JEGELKA, Barbara BECKER, Robert BAUMANN, Johann-Peter MELDER, Boris BUSCHHAUS, Thomas KRUG
  • Publication number: 20150353491
    Abstract: The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 10, 2015
    Applicant: BASF SE
    Inventors: Stephanie JAEGLI, Thomas SCHMIDT, Alfred OFTRING, Alexander PANCHENKO, Kirsten DAHMEN, Oliver MOLT
  • Patent number: 9096497
    Abstract: A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and EDDN and/or EDMN at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: August 4, 2015
    Assignee: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Patent number: 9012638
    Abstract: A process for reacting formaldehyde cyanohydrin (FACH) with ethylenediamine (EDA) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: April 21, 2015
    Assignee: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Patent number: 8952156
    Abstract: A process is disclosed for separating the output from the reaction of EDDN or EDMN with hydrogen in the presence of THF, a catalyst, TETA or DETA, water, and optionally organic compounds having higher and lower boiling points than TETA or DETA. Hydrogen is removed, and the output is supplied to a distillation column DK1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than TETA or DETA, is removed from the top. A product comprising TETA or DETA is removed from the bottom and passed into a distillation column DK2, removing THF. A stream comprising TETA or DETA passes from the bottom of DK2. The DK1 azeotrope is condensed. Phase separation is induced by the addition of an organic solvent essentially immiscible with water, and the mixture is separated. The organic phase is recycled into DK1 and the water phase is discharged.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 10, 2015
    Assignee: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Patent number: 8946459
    Abstract: A process for reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylene-diamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Publication number: 20130090453
    Abstract: A process for preparing TETA and/or DETA by hydrogenating EDDN and/or EDMN with hydrogen in the presence of a catalyst, which comprises preparing EDDN and/or EDMN from FA, HCN and EDA in the presence of toluene as a solvent and performing the hydrogenation in suspension mode in the presence of THF.
    Type: Application
    Filed: August 31, 2012
    Publication date: April 11, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jõrg Pastre, Boris Buschhaus
  • Publication number: 20130090452
    Abstract: A process for reacting formaldehyde cyanohydrin (FACH) with ethylenediamine (EDA) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
    Type: Application
    Filed: August 30, 2012
    Publication date: April 11, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Publication number: 20130085286
    Abstract: A process for preparing amines of the formula (II) R1—NH—CH2—CH2—NH2??(II) in which R1 is hydrogen or radicals of the formula x is integers from zero to two, by reacting nitriles of the formula (I) R2—NH—CH2—CN??(I) in which R2 is hydrogen or radicals of the formula and R3 is the NC— or H2N—CH2- radicals and x is integers from zero to two, with hydrogen in the presence of a catalyst in suspension mode or in a fixed bed, wherein the space velocity on the catalyst, based on the catalyst surface area, is 10?6 to 10?4 kg of nitrile of the formula (I) per m2 of catalyst surface area and hour, the catalyst surface area being determined by the BET method.
    Type: Application
    Filed: August 31, 2012
    Publication date: April 4, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jõrg Pastre, Boris Buschhaus
  • Publication number: 20130079492
    Abstract: A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and EDDN and/or EDMN at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 28, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Publication number: 20130060002
    Abstract: A process is disclosed for separating the output from the reaction of EDDN or EDMN with hydrogen in the presence of THF, a catalyst, TETA or DETA, water, and optionally organic compounds having higher and lower boiling points than TETA or DETA. Hydrogen is removed, and the output is supplied to a distillation column DK1 in which an azeotrope, optionally comprising organic compounds with a boiling point lower than TETA or DETA, is removed from the top. A product comprising TETA or DETA is removed from the bottom and passed cinto a distillation column DK2, removing THF. A stream comprising TETA or DETA passes from the bottom of DK2. The DK1 azeotrope is condensed. Phase separation is induced by the addition of an organic solvent essentially immiscible with water, and the mixture is separated. The organic phase is recycled into DK1 and the water phase is discharged.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus
  • Publication number: 20130053539
    Abstract: A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, wherein the reaction mixture from the conversion of EDA, HCN and FA is cooled after leaving the reactor.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jörg Pastre, Boris Buschhaus