Patents by Inventor Holger Evers
Holger Evers 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: 8765634Abstract: A catalytically active composition comprising, prior to reduction with hydrogen: 10 to 75% by weight of an oxygen compound of zirconium, calculated as ZrO2; 1 to 30% by weight of an oxygen compound of copper, calculated as CuO; 10 to 50% by weight of an oxygen compound of nickel, calculated as NiO; 10 to 50% by weight of an oxygen compound of cobalt, calculated as CoO; and 0.1 to 10% by weight of one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In, calculated as PbO, Bi2O3, SnO, Sb2O3 or In2O3, respectively.Type: GrantFiled: October 11, 2011Date of Patent: July 1, 2014Assignee: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 8759580Abstract: The invention relates to a process for preparing aminoalkanamides by reacting cyanoalkanoic esters with a) ammonia or an amine and b) hydrogen in the presence of a catalyst, the reaction with component b) being started simultaneously or not later than a maximum of 100 minutes after commencement of the reaction of the cyanoalkanoic ester with component a).Type: GrantFiled: December 15, 2006Date of Patent: June 24, 2014Assignee: BASF SEInventors: Martin Ernst, Andreas Kusche, Gunnar Heydrich, Horst Grafmans, Holger Evers, Johann-Peter Melder, Harald Meiβner, Torsten Freund
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PROCESSES FOR PREPARING AMINES AND ZIRCONIUM DIOXIDE- AND NICKELCONTAINING CATALYSTS FOR USE THEREIN
Publication number: 20120035049Abstract: A catalytically active composition comprising, prior to reduction with hydrogen: 10 to 75% by weight of an oxygen compound of zirconium, calculated as ZrO2; 1 to 30% by weight of an oxygen compound of copper, calculated as CuO; 10 to 50% by weight of an oxygen compound of nickel, calculated as NiO; 10 to 50% by weight of an oxygen compound of cobalt, calculated as CoO; and 0.1 to 10% by weight of one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In, calculated as PbO, Bi2O3, SnO, Sb2O3 or In2O3, respectively.Type: ApplicationFiled: October 11, 2011Publication date: February 9, 2012Applicant: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach -
Patent number: 8063252Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In.Type: GrantFiled: July 4, 2007Date of Patent: November 22, 2011Assignee: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 7919655Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, and nickel, and one or more oxygen compounds of one or more metals selected from the group consisting of Sb, Pb, Bi, and In.Type: GrantFiled: July 4, 2007Date of Patent: April 5, 2011Assignee: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 7758730Abstract: The present invention relates to a process for improving the color stability by postpurifying piperazine, the steps comprising preparing an aqueous piperazine solution by introducing solid or liquid piperazine having a degree of purity of at least 90% by weight in water; removing the water by distillation; isolating the piperazine with a predefined maximum residual content of water. The invention further provides a rapid test of aging for checking the improvement in the color stability.Type: GrantFiled: August 3, 2005Date of Patent: July 20, 2010Assignee: BASF AktiengesellschaftInventors: Holger Evers, Michael Jödecke, Johann-Peter Melder, Gunther Van Cauwenberge, Jan Nouwen
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Patent number: 7754922Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of molybdenum in an amount of 5.5 to 12% by weight, calculated as MoO3.Type: GrantFiled: July 4, 2007Date of Patent: July 13, 2010Assignee: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 7696384Abstract: Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a? of <0.70 mm, where a? is the external surface area per unit volume (mms2/mmp3), as defined by a ? = A p V p where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3).Type: GrantFiled: September 25, 2006Date of Patent: April 13, 2010Assignee: BASF SEInventors: Gunther Van Cauwenberge, Johann-Peter Melder, Holger Evers, Till Gerlach, Frank Kiesslich, Ekkehard Schwab, Bram Willem Hoffer
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Patent number: 7674929Abstract: The invention relates to a process for preparing ?-aminopropionic acid derivatives by reacting a primary or secondary amine with an acrylic acid derivative, wherein comprises (i) a first primary or secondary amine is provided as an amine of value and reacted with the acrylic acid derivative, to obtain a reaction mixture comprising a first ?-aminopropionic acid derivative as a product of value and additionally unconverted acrylic acid derivative, (ii) the unconverted acrylic acid derivative present in the reaction mixture is reacted with a second secondary amine as a scavenger amine virtually fully to give a second ?-aminopropionic acid derivative to obtain a reaction mixture comprising the first ?-aminopropionic acid derivative as a product of value, the second ?-aminopropionic acid derivative and unconverted secondary amine.Type: GrantFiled: September 13, 2006Date of Patent: March 9, 2010Assignee: BASF AktiengesellschaftInventors: Holger Evers, Johann-Peter Melder, Thomas Preiss, Harald Meissner
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Publication number: 20100010264Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, and nickel, and one or more oxygen compounds of one or more metals selected from the group consisting of Sb, Pb, Bi, and In.Type: ApplicationFiled: July 4, 2007Publication date: January 14, 2010Applicant: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Publication number: 20090286977Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of one or more metals selected from the group consisting of Pb, Bi, Sn, Sb and In.Type: ApplicationFiled: July 4, 2007Publication date: November 19, 2009Applicant: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 7615665Abstract: Processes comprising: providing a starting material comprising ethylenediamine; and reacting the starting material in the presence of a heterogeneous transition metal catalyst to form one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a? of <0.70 mm, where a? is the external surface area per unit volume (mms2/mmp3), as defined by a ? = A p V p where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3).Type: GrantFiled: September 25, 2006Date of Patent: November 10, 2009Assignee: BASF SEInventors: Till Gerlach, Holger Evers, Johann-Peter Melder
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Publication number: 20090275781Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof, and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of molybdenum in an amount of 5.5 to 12% by weight, calculated as MoO3.Type: ApplicationFiled: July 4, 2007Publication date: November 5, 2009Applicant: BASF SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Publication number: 20090264652Abstract: Processes comprising: (i) providing a reactant selected from the group consisting of primary alcohols, secondary alcohols, aldehydes, ketones and mixtures thereof; and (ii) reacting the reactant with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof in the presence of a catalyst comprising a zirconium dioxide- and nickel-containing catalytically active composition, to form an amine; wherein the catalytically active composition, prior to reduction with hydrogen, comprises oxygen compounds of zirconium, copper, nickel and cobalt, and one or more oxygen compounds of silver in an amount of 0.5 to 6% by weight, calculated as AgO.Type: ApplicationFiled: July 4, 2007Publication date: October 22, 2009Applicant: Basf SEInventors: Petr Kubanek, Bram Willem Hoffer, Ekkehard Schwab, Johann-Peter Melder, Holger Evers, Till Gerlach
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Patent number: 7601875Abstract: Preparation of ethyleneamines by reacting monoethanolamine (MEOA) with ammonia in the presence of a catalyst in a reactor (1) and separating the resulting reaction product, where ethylenediamine (EDA) obtained in the separation is reacted in a separate reactor (2) in the presence of a catalyst to give diethylenetriamine (DETA), and the resulting reaction product is passed to the separation of the reaction product resulting from reactor 1.Type: GrantFiled: July 8, 2004Date of Patent: October 13, 2009Assignee: BASF AktiengesellschaftInventors: Matthias Frauenkron, Holger Evers, Johann-Peter Melder, Roderich Röttger, Markus Siegert, Till Gerlack, Jan Nouwen, Thomas Krug
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Publication number: 20080306299Abstract: The invention relates to a process for preparing aminoalkanamides by reacting cyanoalkanoic esters with a) ammonia or an amine and b) hydrogen in the presence of a catalyst, the reaction with component b) being started simultaneously or not later than a maximum of 100 minutes after commencement of the reaction of the cyanoalkanoic ester with component a).Type: ApplicationFiled: December 15, 2006Publication date: December 11, 2008Applicant: BASF SEInventors: Martin Ernst, Andreas Kusche, Gunnar Heydrich, Horst Grafmans, Holger Evers, Johann-Peter Melder, Harald Meissner, Torsten Freund
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Publication number: 20080255360Abstract: Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a? of <0.70 mm, where a? is the external surface area per unit volume (mms2/mmp3), as defined by a ? = A p V p where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3).Type: ApplicationFiled: September 25, 2006Publication date: October 16, 2008Inventors: Gunther van Cauwenberge, Johann-Peter Melder, Holger Evers, Till Gerlach, Frank Kiesslich, Ekkehard Schwab, Bram Willem Hoffer
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Publication number: 20080255351Abstract: Processes comprising: providing a starting material comprising diethylene glycol; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising aminodiglycol and morpholine; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of copper, nickel, cobalt and at least one of aluminum and zirconium; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extradate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a? of <0.Type: ApplicationFiled: September 25, 2006Publication date: October 16, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Bram Willem Hoffer, Holger Evers, Petr Kubanek, Till Gerlach, Johann-Peter Melder, Frank Funke, Matthias Frauenkron, Helmut Schmidtke
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Publication number: 20080249333Abstract: The invention relates to a process for preparing ?-aminopropionic acid derivatives by reacting a primary or secondary amine with an acrylic acid derivative, wherein comprises (i) a first primary or secondary amine is provided as an amine of value and reacted with the acrylic acid derivative, to obtain a reaction mixture comprising a first ?-aminopropionic acid derivative as a product of value and additionally unconverted acrylic acid derivative, (ii) the unconverted acrylic acid derivative present in the reaction mixture is reacted with a second secondary amine as a scavenger amine virtually fully to give a second ?-aminopropionic acid derivative to obtain a reaction mixture comprising the first ?-aminopropionic acid derivative as a product of value, the second ?-aminopropionic acid derivative and unconverted secondary amine.Type: ApplicationFiled: September 13, 2006Publication date: October 9, 2008Inventors: Holger Evers, Johann-Peter Melder, Thomas Preiss, Harald Meissner
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Publication number: 20080221359Abstract: Processes comprising: providing a starting material comprising ethylenediamine; and reacting the starting material in the presence of a heterogeneous transition metal catalyst to form one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a? of <0.70 mm, where a? is the external surface area per unit volume (mms2/mmp3), as defined by a ? = A p V p where Ap is the external surface area of the catalyst particle (mms2) and Vp is the volume of the catalyst particle (mmp3).Type: ApplicationFiled: September 25, 2006Publication date: September 11, 2008Applicant: BASF SEInventors: Till Gerlach, Holger Evers, Johann-Peter Melder