Patents by Inventor Thomas Bogenstätter
Thomas Bogenstätter 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: 8790611Abstract: The invention relates to a reactor for carrying out an exothermic reaction in the gas phase, which comprises a vessel having an outer wall (13) composed of a metallic material, wherein an inner shell (17) is accommodated in the interior of the reactor (1) and the inner shell (17) has a spacing of at least 50 mm to the inside of the outer wall (13).Type: GrantFiled: July 5, 2013Date of Patent: July 29, 2014Assignee: BASF SEInventors: Thomas Bogenstätter, Heribert Deck, Ortwin Gröhl, Thomas Weeser, Jan Ulrich, Jasmina Kessel
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Publication number: 20140010751Abstract: The invention relates to a reactor for carrying out an exothermic reaction in the gas phase, which comprises a vessel having an outer wall (13) composed of a metallic material, wherein an inner shell (17) is accommodated in the interior of the reactor (1) and the inner shell (17) has a spacing of at least 50 mm to the inside of the outer wall (13).Type: ApplicationFiled: July 5, 2013Publication date: January 9, 2014Applicant: BASF SEInventors: Thomas Bogenstätter, Heribert Deck, Ortwin Gröhl, Thomas Weeser, Jan Ulrich, Jasmina Kessel
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Publication number: 20100254889Abstract: A process for preparing sulfuric acid, in which process gases comprising sulfur dioxide are obtained by combustion of liquid sulfur by means of process air introduced from the outside or by dissociation of waste sulfuric acids and the sulfur dioxide in the process gases comprising sulfur dioxide is oxidized to sulfur trioxide and converted into sulfuric acid by the contact process, wherein the process air which is introduced from the outside for combustion of sulfur or the process gases comprising sulfur dioxide which are obtained by dissociation of waste sulfuric acid have their water vapor content reduced by cooling them, is proposed.Type: ApplicationFiled: November 6, 2008Publication date: October 7, 2010Applicant: BASF SEInventors: Thomas Bogenstätter, Jörg Torsten Nickel
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Patent number: 7511170Abstract: A process for carrying out a liquid/solid reaction comprises a) preparing a reaction suspension in which a first reactant is present in suspended form and a second reactant is present in dissolved form in a suspension medium, where one of the reaction products is insoluble in the suspension medium, b) passing the reaction suspension through an elongated reaction zone so that the Reynolds number of the stream is less than 20,000 and c) separating off the insoluble reaction product formed. The process has the advantage that the insoluble reaction product is obtained in a readily filterable form.Type: GrantFiled: August 29, 2002Date of Patent: March 31, 2009Assignee: BASF AktiengellschaftInventors: Ingo Klopp, Thomas Bogenstätter, Dirk Franke, Manfred Munzinger
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Patent number: 7074953Abstract: A process is described for preparing ammonium salts of aromatic carboxylic acids by reacting an aromatic carboxylic acid with ammonia in an aprotic solvent, which comprises carrying out the reaction in a closed vessel by continuously introducing a solution of the aromatic carboxylic acid in the aprotic solvent and passing in gaseous ammonia so that an ammonia partial pressure in the range from 0.1 to 3 bar is maintained in the gas space of the vessel, and discharging a suspension of the ammonium salt in the aprotic solvent. The process allows the preparation of ammonium salts of defined crystal size having a narrow size distribution.Type: GrantFiled: December 3, 2002Date of Patent: July 11, 2006Assignee: BASF AktiengesellschaftInventors: Ingo Klopp, Thomas Bogenstätter, Dirk Franke
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Patent number: 6965047Abstract: Ethers, esters or acid anhydrides are advantageously obtained when a cake of a first reactant selected from salts of organic or oxygen-containing inorganic acids or alkoxides disposed on a filter element is flowed through by a solution of a second reactant selected from inorganic or organic acid halides and alkyl halides, so that the insoluble halide salt formed remains on the filter element. The halide salt can thus be removed substantially quantitatively in a simple manner.Type: GrantFiled: April 14, 2003Date of Patent: November 15, 2005Assignee: BASF AktiengesellschaftInventors: Ingo Klopp, Thomas Bogenstätter, Dirk Franke
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Patent number: 6867336Abstract: In a process for the continuous preparation of 2-bromo-2-nitro-1,3-propanediol, nitromethane is firstly reacted with formaldehyde and alkali metal hydroxide and the reaction mixture obtained in this way is subsequently reacted with bromine.Type: GrantFiled: August 1, 2002Date of Patent: March 15, 2005Assignee: BASF AktiengesellschaftInventors: Günter Scherr, Thomas Bogenstätter, Jürgen Huff
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Patent number: 6759553Abstract: A process for the preparation of creatine or creatine monohydrate by reaction of sodium or potassium sarcosinate with cyanamide at a temperature from 20 to 150° C. and a pH from 7.0 to 14.0 comprises carrying out the pH adjustment with carbonic acid.Type: GrantFiled: September 8, 1999Date of Patent: July 6, 2004Assignee: BASF AktiengesellschaftInventors: Knut Kessel, Günter Scherr, Michael Kluge, Norbert Biedermann, Thomas Greindl, Thomas Bogenstätter, Wolfgang Hähnlein
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Patent number: 6689299Abstract: A process for producing solid creatine-containing dosage forms, wherein a) a mixture which comprises at least one thermoplastic, physiologically tolerated, water-soluble or water-swellable polymeric binder and creatine, and contains 1 to 20 mol of water per mol of creatine is prepared, b) the mixture is plasticated at or above the softening point of the polymeric binder, preferably with at least partial evaporation of the water, c) the plasticated mixture is shaped to dosage forms and cooled.Type: GrantFiled: April 5, 2001Date of Patent: February 10, 2004Assignee: BASF AktiengesellschaftInventors: Knut Kessel, Günter Scherr, Thomas Bogenstätter, Gunther Berndl, Jörg Breitenbach
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Patent number: 6509497Abstract: A process for preparing guanidine derivatives, in particular creatine, is described and entails continuously combining a cyanamide derivative and a primary or secondary amine in the presence of crystals of the guanidine derivative.Type: GrantFiled: February 7, 2000Date of Patent: January 21, 2003Assignee: BASF AktiengesellschaftInventors: Knut Kessel, Michael Kluge, Thomas Bogenstätter, Günter Scherr
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Patent number: 6403800Abstract: Described is a process for preparing 1-(2-sulfoethyl)pyridinium betaine wherein pyridine is reacted with a sulfoethylating agent from the group consisting of carbyl sulfate, ethionic acid and its salt and vinylsulfonic acid and vinylsulfonate, the reaction taking place in aqueous solution or in pyridine.Type: GrantFiled: August 11, 2000Date of Patent: June 11, 2002Assignee: BASF AktiengesellschaftInventors: Elisabeth Kappes, Gregor Brodt, Rudi Kröner, Norbert Wagner, Sören Hildebrandt, Thomas Bogenstätter
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Patent number: 6399819Abstract: A process for purifying creatine is described in which the creatine to be purified in the form free of water of crystallization is introduced into a saturated aqueous solution of creatine monohydrate, in which the creatine free of water of crystallization is dissolved with hydration, crystals of creatine monohydrate precipitate from the aqueous solution and these are separated off from the aqueous solution.Type: GrantFiled: December 12, 2000Date of Patent: June 4, 2002Assignee: BASF AktiengesellschaftInventors: Knut Kessel, Günter Scherr, Thomas Bogenstätter, Stefan Orsten, Dirk Franke
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Patent number: 6281394Abstract: A process for preparing vicinal diols or polyols from an organic reaction mixture containing formic esters of vicinal diols or polyols, in which water is added to the reaction mixture, without addition of bases, and the formic esters are hydrolyzed in a subsequent thermal treatment, the aqueous formic acid is removed, and vicinal diols or polyols remain behind.Type: GrantFiled: March 23, 2000Date of Patent: August 28, 2001Assignee: BASF AktiengesellschaftInventors: Alfred Oftring, Thomas Bogenstätter, Christian Ott
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Patent number: 6252103Abstract: A process for the preparation of an O-alkylisourea of the formula I, where R1 is C1- to C20-alkyl, in the form of an acid addition salt, in which urea and an alkyl-transferring reagent, if required dissolved or suspended in a diluent, are reacted at 40-200° C. in a continuously operated reactor, is described. The diluent is preferably a recycled part-stream of the O-alkylisourea acid addition salt obtained.Type: GrantFiled: November 15, 1999Date of Patent: June 26, 2001Assignee: BASF AktiengesellschaftInventors: Michael Kluge, Knut Kessel, Thomas Greindl, Norbert Biedermann, Günter Scherr, Thomas Bogenstätter