Patents by Inventor Helmut Schmidtke
Helmut Schmidtke 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: 8293075Abstract: Processes for the continuous fractional distillation of a mixture containing morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process including: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20, in which water and an organic product are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.Type: GrantFiled: September 12, 2007Date of Patent: October 23, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Patent number: 8246793Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from the first distillation column to a second distillation column K20, wherein water and an organic product are separated off at a top of the second distillation column at a top temperature of 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from the second distillation column to a third distillation column K30, wherein morpholine and an organic product having a boiling point of <140° C. (1.013 bar) are separated off at a point selected from a top and a side offtake of the third distillation column, and monoaminodiglycol and an organic product having a boiling point of >190° C. (1.Type: GrantFiled: September 12, 2007Date of Patent: August 21, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Patent number: 8197646Abstract: Process for the continuous fractional distillation of mixtures including morpholine (MO), monoaminodiglycol (ADG), ammonia and water obtained by reaction of diethylene glycol (DEG) with ammonia, which includes separating off ammonia at the top of a first distillation column K10, feeding the bottoms from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.1 to 15 bar, feeding the bottoms from K20 to a third distillation column K30 in which MO and organic products having a boiling point of <140° C. (1.013 bar) are separated off at the top or at a side offtake and ADG and organic products having a boiling point of >190° C. (1.013 bar) are separated off at the bottom, feeding the MO including stream which is separated off at the top or at a side offtake of the column K30 to a fourth column K40 in which organic products having a boiling point of ?128° C. (1.Type: GrantFiled: September 12, 2007Date of Patent: June 12, 2012Assignee: BASF SEInventors: Helmut Schmidtke, Oliver Buβmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Publication number: 20120024689Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from the first distillation column to a second distillation column K20, wherein water and an organic product are separated off at a top of the second distillation column at a top temperature of 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from the second distillation column to a third distillation column K30, wherein morpholine and an organic product having a boiling point of <140° C. (1.013 bar) are separated off at a point selected from a top and a side offtake of the third distillation column, and monoaminodiglycol and an organic product having a boiling point of >190° C. (1.Type: ApplicationFiled: September 12, 2007Publication date: February 2, 2012Applicant: BASF SEInventors: Helmut Schmidtke, Oliver Bußmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Patent number: 7994350Abstract: Process for the continuous preparation of N-ethyl-2-pyrrolidone (NEP) by reacting gamma-butyrolactone (GBL) with monoethylamine (MEA) in the liquid phase, wherein GBL and MEA are used in a molar ratio in the range from 1:1.08 to 1:2 an the reaction is carried out at a temperature in the range from 320 to 420° C. and an absolute pressure in the range from 70 to 120 bar.Type: GrantFiled: May 10, 2007Date of Patent: August 9, 2011Assignee: BASF SEInventors: Helmut Schmidtke, Ralph Versch, Silke Simon, Karl Ott, Ronald Drews, Stephanie Mollner
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Publication number: 20110009627Abstract: The invention relates to a reactor for performing high-pressure reactions, comprising at least one tube (31) whose ends are each conducted through a tube plate (33) and which is bonded to the tube plate (33). The tube plates (33) and the at least one tube (31) are surrounded by an outer jacket, such that an outer space (39) is formed between the tube (31) and the outer jacket. The tube plates (33) each have at least one surface composed of a nickel-base alloy and the at least one tube (31) is in each case welded on to the surface composed of the nickel-base alloy. The surface composed of the nickel-base alloy points in each case in the direction of the particular reactor end. The outer jacket has a thickness which is sufficient to absorb tensile forces which occur between tube (31) and outer jacket owing to a temperature difference in the event of different expansion. The invention further relates to a process for starting up the reactor and for performing an exothermic reaction in the reactor.Type: ApplicationFiled: January 21, 2009Publication date: January 13, 2011Applicant: BASF SEInventors: Helmut Schmidtke, Wilhelm Ruppel, Helmut Berrsche, Johann-Peter Melder, Udo Rheude, Petr Kubanek, Gerhard Ruf, Wolfgang Gunkel, Wolfgang Mägerlein, Karl-Heinz Ross
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Patent number: 7825281Abstract: A process for preparing electronics-grade 2,2?-aminoethyoxyethanol by reacting diethylene glycol with ammonia in the presence of a catalyst in a reactor to give a reaction mixture from which a crude 2,2?-aminoethoxyethanol stream is separated off and is purified further by distillation in a pure column, wherein a sidestream comprising electronics-grade 2,2?-aminoethoxyethanol is taken off from the pure column as a result of the diethylene glycol being passed through a filter which ensures a degree of removal of at least 99% for solid particles having a maximum particle size of ?1.5 ?m before the diethylene glycol is fed into the reactor, is proposed.Type: GrantFiled: September 21, 2007Date of Patent: November 2, 2010Assignee: BASF AktiengesellschaftInventors: Helmut Schmidtke, Martin Rudloff
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Patent number: 7753970Abstract: The present invention relates to polyalkene amine formulations comprising at least one polyalkene amine in a solvent, having improved performance properties, especially improved low temperature properties; a process for preparing such formulations and the use of these formulations in fuel and lubricant compositions, in particular fuels, for improving the intake system-cleaning action of such fuels.Type: GrantFiled: March 31, 2004Date of Patent: July 13, 2010Assignee: BASF AktiengesellschaftInventors: Marco Bergemann, Harald Schwahn, Dietmar Posselt, Erich K. Fehr, Thomas Wettling, Klaus Diehl, Helmut Schmidtke
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Publication number: 20100084257Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the process comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.Type: ApplicationFiled: September 12, 2007Publication date: April 8, 2010Applicant: BASF SEInventors: Helmut Schmidtke, Oliver Bussmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Publication number: 20100084258Abstract: Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the processes comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from K20 to a third distillation column K30 in which MO and organic products having a boiling point of <140° C. (1.013 bar) are separated off at the top or at a side offtake and ADG and organic products having a boiling point of >190° C. (1.Type: ApplicationFiled: September 12, 2007Publication date: April 8, 2010Applicant: BASF SEInventors: Helmut Schmidtke, Oliver Bussmann, Ralph Versch, Udo Rheude, Uwe Leyk, Manfred Julius, Martin Rudloff, Erhard Henkes
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Publication number: 20100029989Abstract: A process for preparing electronics-grade 2,2?-aminoethyoxyethanol by reacting diethylene glycol with ammonia in the presence of a catalyst in a reactor to give a reaction mixture from which a crude 2,2?-aminoethoxyethanol stream is separated off and is purified further by distillation in a pure column, wherein a sidestream comprising electronics-grade 2,2?-aminoethoxyethanol is taken off from the pure column as a result of the diethylene glycol being passed through a filter which ensures a degree of removal of at least 99% for solid particles having a maximum particle size of ?1.5 ?m before the diethylene glycol is fed into the reactor, is proposed.Type: ApplicationFiled: September 21, 2007Publication date: February 4, 2010Applicant: BASF SEInventors: Helmut Schmidtke, Martin Rudloff
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Publication number: 20090187030Abstract: Process for the continuous preparation of N-ethyl-2-pyrrolidone (NEP) by reacting gamma-butyrolactone (GBL) with monoethylamine (MEA) in the liquid phase, wherein GBL and MEA are used in a molar ratio in the range from 1:1.08 to 1:2 an the reaction is carried out at a temperature in the range from 320 to 420° C. and an absolute pressure in the range from 70 to 120 bar.Type: ApplicationFiled: May 10, 2007Publication date: July 23, 2009Applicant: BASF SEInventors: Helmut Schmidtke, Ralph Versch, Silke Simon, Karl Ott, Ronald Drews, Stephanie Mollner
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Publication number: 20080269426Abstract: The present invention relates to a process for preparing a polyalkenylamine, in which the solvent used for the reaction is exchanged for a different solvent.Type: ApplicationFiled: June 23, 2006Publication date: October 30, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Stefan Bitterlich, Thomas Wettling, Peter Spang, Helmut Schmidtke, Klaus Diehl, Andreas Bode, Matthias Frauenkron, Marc Walter, Erich K. Fehr
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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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Patent number: 7227029Abstract: Process for the continuous preparation of N-methyl-2-pyrrolidone (NMP) by reacting gamma-butyrolactone (GBL) with monomethylamine (MMA) in the liquid phase, wherein GBL and MMA are used in a molar ratio of from 1:1.08 to 1:2 and the reaction is carried out at from 320 to 380° C. and an absolute pressure of from 70 to 120 bar.Type: GrantFiled: November 15, 2002Date of Patent: June 5, 2007Assignee: BASF AktiengesellschaftInventors: Martin Rudloff, Peter Stops, Erhard Henkes, Helmut Schmidtke, Rolf-Hartmuth Fischer, Manfred Julius, Rolf Lebkücher, Karl-Heinz Ross
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Publication number: 20070094922Abstract: The present invention relates to polyalkene amine formulations comprising at least one polyalkene amine in a solvent, having improved performance properties, especially improved low temperature properties; a process for preparing such formulations and the use of these formulations in fuel and lubricant compositions, in particular fuels, for improving the intake system-cleaning action of such fuels.Type: ApplicationFiled: March 31, 2004Publication date: May 3, 2007Applicant: BASF AkiengesellschaftInventors: Marco Bergemann, Harald Schwahn, Dietmar Posselt, Erich Fehr, Thomas Wettling, Klaus Diehl, Helmut Schmidtke
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Patent number: 7164031Abstract: A process for continuously preparing 2-pyrrolidone by reacting gamma-butyrolactone with ammonia in the liquid phase in the presence of water, wherein the reaction is carried out at a temperature of from 275 to 300° C. and an absolute pressure of from 140 to 180 bar.Type: GrantFiled: August 30, 2002Date of Patent: January 16, 2007Assignee: BASF AktiengesellschaftInventors: Martin Rudloff, Peter Stops, Erhard Henkes, Helmut Schmidtke, Rolf-Hartmuth Fischer, Manfred Julius, Rolf Lebkücher, Karl-Heinz Ross
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Publication number: 20050010057Abstract: Process for the continuous preparation of N-methyl-2-pyrrolidone (NMP) by reacting gamma-butyrolactone (GBL) with monomethylamine (MMA) in the liquid phase, wherein GBL and MMA are used in a molar ratio of from 1:1.08 to 1:2 and the reaction is carried out at from 320 to 380° C. and an absolute pressure of from 70 to 120 bar.Type: ApplicationFiled: November 15, 2002Publication date: January 13, 2005Inventors: Martin Rudloff, Peter Stops, Erhard Henkes, Helmut Schmidtke, Rolf-Hartmuth Fischer, Manfred Julius, Rolf Lebkucher, Karl-Heinz Ross
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Publication number: 20040242900Abstract: A process for continuously preparing 2-pyrrolidone by reacting gamma-butyrolactone with ammonia in the liquid phase in the presence of water, wherein the reaction is carried out at a temperature of from 275 to 300° C. and an absolute pressure of from 140 to 180 bar.Type: ApplicationFiled: February 24, 2004Publication date: December 2, 2004Inventors: Martin Rudloff, Peter Stops, Erhard Henkes, Helmut Schmidtke, Rolf-Hartmuth Fischer, Manfred Julius, Rolf Lebkucher, Karl-Heinz Ross