Patents by Inventor Thomas Krug
Thomas Krug 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: 20120271068Abstract: 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: ApplicationFiled: December 14, 2010Publication date: October 25, 2012Applicant: BASF SEInventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
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Publication number: 20120259139Abstract: 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: ApplicationFiled: December 13, 2010Publication date: October 11, 2012Applicant: BASF SEInventors: Wolfgang Mägerlein, Johann-Peter Melder, Jörg Pastre, Jan Eberhardt, Thomas Krug, Mirko Kreitschmann
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Publication number: 20120245390Abstract: The present invention relates to a process for hydrogenating nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the catalyst is arranged in a fixed bed, wherein the cross-sectional loading in the reactor is in the range from 5 kg/(m2s) to 50 kg/(m2s). The present invention further relates to a process for preparing downstream products of isophoronediamine (IPDA) or N,N-dimethylaminopropylamine (DMAPA) from amines prepared according to the invention.Type: ApplicationFiled: March 22, 2012Publication date: September 27, 2012Applicant: BASF SEInventors: Christof Wilhelm Wigbers, Christoph Müller, Wolfgang Mägerlein, Petr Kubanek, Thomas Heidemann, Johann-Peter Melder, Thomas Krug, Oliver Bey
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Patent number: 8247580Abstract: The present invention provides a process for preparing ?-caprolactone in a purity of more than 99% by cyclizing 6-hydroxycaproic esters in the liquid phase at from 150 to 400° C. and from 1 to 1020 hPa abs., and removing and condensing the compounds which are volatile under cyclization conditions, which comprises thermally treating the remaining bottom product of the cyclization in at least one further reactor, removing and condensing volatile compounds and obtaining ?-caprolactone by distillation from the condensates.Type: GrantFiled: October 28, 2008Date of Patent: August 21, 2012Assignee: BASF SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Thomas Krug, Tilman Sirch, Todd C Spengeman, Stephanie A. Bejune, Jeffrey T. Andress, Todd Gasiorowski
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Patent number: 8217186Abstract: The invention relates to a process for preparing ?-caprolactone from 6-hydroxycaproic ester in the gas phase in the presence of activated carbon as a catalyst and subsequent distillation.Type: GrantFiled: December 10, 2008Date of Patent: July 10, 2012Assignee: BASF SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Daniel Breuninger, Tilman Sirch, Christophe Bauduin, Maria Guixa Guardia, Thomas Krug
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Patent number: 8163139Abstract: Processes comprising: providing a mixture comprising monoethylene glycol and diethylenetriamine; and subjecting the mixture to extractive distillation with a diethylenetriamine-selective solvent comprising triethylene glycol to provide a first stream comprising monoethylene glycol and a second stream comprising diethylenetriamine; wherein the first stream is substantially free of diethylenetriamine, and wherein the second stream is substantially free of monoethylene glycol.Type: GrantFiled: February 8, 2007Date of Patent: April 24, 2012Assignee: BASF SEInventors: Karin Pickenäcker, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Gunther van Cauwenberge, Frank-Friedrich Pape
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Publication number: 20110184210Abstract: In the continuous process for preparing alkylamines by reacting C1-4-alkanols with ammonia in the gas phase in the presence of a shape-selective fixed-bed catalyst in a cooled reactor, the shape-selective fixed-bed catalyst is present in a single contiguous fixed bed in the reactor and tubes through which coolants are passed run within the fixed bed to regulate the temperature of the fixed bed.Type: ApplicationFiled: April 7, 2011Publication date: July 28, 2011Applicant: BASF SEInventors: Marco Bosch, Roderich Röttger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Patent number: 7951974Abstract: In the continuous process for preparing alkylamines by reacting C1-4-alkanols with ammonia in the gas phase in the presence of a shape-selective fixed-bed catalyst in a cooled reactor, the shape-selective fixed-bed catalyst is present in a single contiguous fixed bed in the reactor and tubes through which coolants are passed run within the fixed bed to regulate the temperature of the fixed bed.Type: GrantFiled: April 30, 2010Date of Patent: May 31, 2011Assignee: BASF AktiengesellschaftInventors: Marco Bosch, Roderich Röttger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Publication number: 20110021789Abstract: A process for decreasing fumaric acid deposits in the preparation of maleic anhydride by heterogeneously catalyzed oxidation of a hydrocarbon with molecular oxygen, in which the maleic anhydride is absorbed from the crude product mixture in an absorbent in an absorption column and desorbed again in a desorption column, the entirety or a portion of the absorbent depleted in maleic anhydride, for controlled precipitation of fumaric acid, being cooled and/or concentrated by evaporating a portion of the absorbent to such an extent that the difference between the concentration of fumaric acid in the recycle stream at the outlet of the desorption column under the conditions existing there and the equilibrium concentration of fumaric acid according to the solubility curve after the cooling and/or evaporation of a portion of the absorbent is greater than or equal to 250 ppm by weight, and the fumaric acid precipitated as a solid is removed completely or partly from the absorbent recycling system and the fumaric acid-Type: ApplicationFiled: March 23, 2009Publication date: January 27, 2011Applicant: BASF SEInventors: Gunther Windecker, Jens Weiguny, Alexander Weck, Ellen Dahlhoff, Wolf-Steffen Weissker, Jörg Heilek, Thomas Krug, Ralf Freyberger
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Publication number: 20100256398Abstract: The invention relates to a process for preparing ?-caprolactone from 6-hydroxycaproic ester in the gas phase in the presence of activated carbon as a catalyst and subsequent distillation.Type: ApplicationFiled: December 10, 2008Publication date: October 7, 2010Applicant: BASE SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Daniel Breuninger, Tilman Sirch, Christophe Bauduin, Maria Guixa Guardia, Thomas Krug
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Publication number: 20100240913Abstract: The present invention provides a process for preparing ?-caprolactone in a purity of more than 99% by cyclizing 6-hydroxycaproic esters in the liquid phase at from 150 to 400° C. and from 1 to 1020 hPa abs., and removing and condensing the compounds which are volatile under cyclization conditions, which comprises thermally treating the remaining bottom product of the cyclization in at least one further reactor, removing and condensing volatile compounds and obtaining ?-caprolactone by distillation from the condensates.Type: ApplicationFiled: October 28, 2008Publication date: September 23, 2010Applicant: BASF SEInventors: Rolf Pinkos, Gerd-Dieter Tebben, Thomas Krug, Tilman Sirch, Todd C. Spengeman, Stephanie A. Bejune, Jeffrey T. Andress, Todd Gasiorowski
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Publication number: 20100210877Abstract: In the continuous process for preparing alkylamines by reacting C1-4-alkanols with ammonia in the gas phase in the presence of a shape-selective fixed-bed catalyst in a cooled reactor, the shape-selective fixed-bed catalyst is present in a single contiguous fixed bed in the reactor and tubes through which coolants are passed run within the fixed bed to regulate the temperature of the fixed bed.Type: ApplicationFiled: April 30, 2010Publication date: August 19, 2010Applicant: BASF AktiengesellschaftInventors: Marco Bosch, Roderich Röttger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Patent number: 7754921Abstract: 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: GrantFiled: September 21, 2006Date of Patent: July 13, 2010Assignee: BASF SEInventors: Marco Bosch, Roderich Röttger, Jan Eberhardt, Thomas Krug, Manfred Julius, Karl-Heínz Roβ, Theodor Weber
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Publication number: 20100168445Abstract: The present invention provides a process for preparing ?-caprolactone in a purity above 99%, in which 6-hydroxycaproic ester comprising from 0.5 to 40% by weight of adipic diester is cyclized in the gas phase at from 150 to 450° C. in the presence of oxidic catalysts and ?-caprolactone is obtained from the cyclization product by distillation.Type: ApplicationFiled: June 6, 2008Publication date: July 1, 2010Applicant: BASF SEInventors: Rolf Pinkos, Gerd Tebben, Christophe Bauduin, Daniel Breuninger, Maria Guixa Guardia, Tilman Sirch, Thomas Krug
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Patent number: 7714169Abstract: In the continuous process for preparing alkylamines by reacting C1-4-alkanols with ammonia in the gas phase in the presence of a shape-selective fixed-bed catalyst in a cooled reactor, the shape-selective fixed-bed catalyst is present in a single contiguous fixed bed in the reactor and tubes through which coolants are passed run within the fixed bed to regulate the temperature of the fixed bed.Type: GrantFiled: October 27, 2008Date of Patent: May 11, 2010Assignee: BASF SEInventors: Marco Bosch, Roderich Röttger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Patent number: 7700806Abstract: A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein the process is carried out in two process stages in which in the first process stage, the amination is carried out over a hydroamination catalyst to a monoethylene glycol conversion of not more than 40% and in the second process stage, a supported catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of group VIII and also no metal of group IB is used in the form of shaped catalyst bodies which in the case of a spherical shape or rod shape in each case have a diameter of <3 mm, in the case of a pellet shape have a height of <3 mm and in the case of all other geometries in each case have an equivalent diameter L=1/a? of <0.70 mm, is proposed.Type: GrantFiled: February 5, 2007Date of Patent: April 20, 2010Assignee: BASF AktiengesellschaftInventors: Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Karin Pickenäcker, Frank-Friedrich Pape, Ekkehard Schwab
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Publication number: 20100018292Abstract: A method is proposed for leakage monitoring in a tube bundle reactor (2) having a bundle of contact tubes (2) vertically arranged parallel to one another, through which a fluid reaction mixture is delivered, and through whose space (3) surrounding the contact tubes a liquid heat exchanger is delivered, and having one or more vent holes (4) for the liquid heat exchanger in the upper region of the tube bundle reactor (1), which connect the tube bundle reactor (1) to one or more equilibrating vessels (5, 6, 7) for the liquid heat exchanger, wherein at least one of the equilibrating vessels (5, 6, 7) for the liquid heat exchanger has a connecting line (8) for supplying the gas phase above the liquid level therein to an analysis device (9), which determines the composition of the supplied gas phase.Type: ApplicationFiled: February 8, 2008Publication date: January 28, 2010Applicant: BASF SEInventors: Gerhard Olbert, Jobst Rüdiger von Watzdorf, Thomas Krug
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Patent number: 7635790Abstract: A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein a catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of group VIII and also no metal of group IB is used in the form of shaped catalyst bodies which in the case of a spherical shape or rod shape in each case have a diameter of <3 mm, in the case of a pellet shape have a height of <3 mm and in the case of all other geometries in each case have an equivalent diameter L=1/a? of <0.70 mm, where a? is the external surface area per unit volume (mms2/mmp3) and: a ? = Ap Vp where Ap is the external surface area of the shaped catalyst body (mms2) and Vp is the volume of the shaped catalyst body (mmp3), is proposed.Type: GrantFiled: February 8, 2007Date of Patent: December 22, 2009Assignee: BASF SEInventors: Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Karin Pickenäcker, Frank-Friedrich Pape, Ekkehard Schwab
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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: 20090240084Abstract: A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein the process is carried out in two process stages in which in the first process stage, the amination is carried out over a hydroamination catalyst to a monoethylene glycol conversion of not more than 40% and in the second process stage, a supported catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of group VIII and also no metal of group IB is used in the form of shaped catalyst bodies which in the case of a spherical shape or rod shape in each case have a diameter of <3 mm, in the case of a pellet shape have a height of <3 mm and in the case of all other geometries in each case have an equivalent diameter L=1/a? of <0.70 mm, is proposed.Type: ApplicationFiled: February 5, 2007Publication date: September 24, 2009Applicant: BASF SEInventors: Gunther van Cauwenberge, Johann-Peter Melder, Bram Willem Hoffer, Thomas Krug, Karin Pickenäcker, Frank-Friedrich Pape, Ekkehard Schwab