Patents by Inventor Theodor Weber
Theodor Weber 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: 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: 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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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: 7518020Abstract: The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.Type: GrantFiled: September 24, 2004Date of Patent: April 14, 2009Assignee: BASF SEInventors: Werner Reutemann, Rolf Wambsganβ, Frank Poplow, Theodor Weber, Karl-Heinz Roβ, Manfred Julius
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Publication number: 20090088591Abstract: 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: October 27, 2008Publication date: April 2, 2009Applicant: BASF AktiengesellschaftInventors: Marco Bosch, Roderich Roettger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Publication number: 20080255390Abstract: 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: ApplicationFiled: September 21, 2006Publication date: October 16, 2008Applicant: BASF SEInventors: Marco Bosch, Roderich Rottger, Jan Eberhardt, Thomas Krug, Manfred Julius, Karl-Heinz Ross, Theodor Weber
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Patent number: 7435854Abstract: The present invention provides an efficient method of making O-desmethyl-venlafaxine.Type: GrantFiled: June 1, 2007Date of Patent: October 14, 2008Assignee: WyethInventor: Beat Theodor Weber
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Patent number: 7309403Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and includes monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).Type: GrantFiled: September 24, 2004Date of Patent: December 18, 2007Assignee: BASF AktiengesellschaftInventors: Werner Reutemann, Theodor Weber, Karl-Heinz Ross, Manfred Julius
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Publication number: 20070270614Abstract: The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.Type: ApplicationFiled: September 24, 2004Publication date: November 22, 2007Applicant: BASF Aktiengesellschaft Patents, Trademarks and LicensesInventors: Werner Reutemann, Rolf Wambsganss, Frank Poplow, Theodor Weber, Karl-Heinz Ross, Manfred Julius
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Publication number: 20060243584Abstract: The invention relates to a method of avoiding corrosion in the separation of methylamine from a product stream (10) which is obtained in the preparation of methylamines by gas-phase reaction of methanol and ammonia and comprises monomethylamine, dimethylamine, trimethylamine, ammonia and methanol as components, where ammonia is separated off by pure distillation in a first column (1), the remaining components of the product stream obtained as bottoms (12) are fed to a second column (2). Trimethylamine (14) is separated off in the second column (2) by extractive distillation with introduction of water. The further components of the product stream obtained as bottoms (15) from the second column (2) are fed to a third column (3), in which monomethylamine and dimethylamine are separated off at the top. The monomethylamine and dimethylamine are separated by distillation in a fourth column (4). To avoid corrosion alkali metal hydroxide is added to the second or third column (3).Type: ApplicationFiled: September 24, 2004Publication date: November 2, 2006Applicant: BASF AtiengesellschaftInventors: Werner Reutemann, Theodor Weber, Karl-Heinz Ross, Manfred Julius
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Patent number: 7078574Abstract: A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from ?50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.Type: GrantFiled: April 17, 2002Date of Patent: July 18, 2006Assignee: BASF AktiengesellschaftInventors: Armin Stamm, Heinz-Josef Kneuper, Stefan Rittinger, Peter Dransfeld, Hans-Peter Schildberg, Manfred Heilig, Theodor Weber
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Patent number: 7053244Abstract: The invention relates to a process for the preparation of tetrasubstituted ureas by reaction of the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150° C., which comprises: feeding the corresponding amine, the phosgene and the aqueous inorganic base on average continuously to the reaction apparatus, forming a two-phase system in the reaction apparatus through the choice of the tetrasubstituted ureas to be prepared, through the mixing ratios of the substances and substance mixtures to be fed in, through the temperature during the reaction and, where appropriate, through the feed of an organic solvent which is not completely miscible with water, and discharging the reaction mixture on average continuously from the reaction apparatus.Type: GrantFiled: July 3, 2003Date of Patent: May 30, 2006Assignee: BASF AktiengesellschaftInventors: Jochem Henkelmann, Theodor Weber, Thorsten Rohde, Ralph Busch
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Publication number: 20060079718Abstract: 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: November 24, 2003Publication date: April 13, 2006Applicant: BASF AktiengesellschaftInventors: Marco Bosch, Roderich Rottger, Bernd Stein, Thomas Krug, Johann-Peter Melder, Theodor Weber
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Publication number: 20050261524Abstract: The invention relates to a process for the preparation of tetrasubstituted ureas by reaction of the corresponding amines with phosgene in the presence of an aqueous inorganic base at a temperature in the range from 0 to 150° C., which comprises: feeding the corresponding amine, the phosgene and the aqueous inorganic base on average continuously to the reaction apparatus, forming a two-phase system in the reaction apparatus through the choice of the tetrasubstituted ureas to be prepared, through the mixing ratios of the substances and substance mixtures to be fed in, through the temperature during the reaction and, where appropriate, through the feed of an organic solvent which is not completely miscible with water, and discharging the reaction mixture on average continuously from the reaction apparatus.Type: ApplicationFiled: July 3, 2003Publication date: November 24, 2005Applicant: BASF AKTIENGESELLSCHAFTInventors: Jochen Henkelmann, Theodor Weber, Thorsten Rohde, Ralph Busch
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Patent number: 6770783Abstract: The invention relates to a method for producing acid chlorides by converting carboxylic acids with carbon oxychlorides or thionyl chloride in the presence of a catalyst adduct of an N,N-disubstituted formamide of general formula (I) and carbon oxychloride or thionyl chloride. In the formula, R1 and R2, independently from one another, mean C1- to C4-alkyl or R1 and R2 together mean a C4- or C5-alkylene chain. According to the inventive method, hydrogen chloride is added during and/or after the conversion.Type: GrantFiled: March 12, 2002Date of Patent: August 3, 2004Assignee: BASF AktiengesellschaftInventors: Ralph Busch, Heinz-Josef Kneuper, Theodor Weber, Winfried Müller, Armin Stamm, Jochem Henkelmann
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Publication number: 20040147791Abstract: A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from −50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.Type: ApplicationFiled: October 20, 2003Publication date: July 29, 2004Inventors: Armin Stamm, Heinz-Josef Kneuper, Stefan Rittinger, Peter Dransfeld, Hans-Peter Schildberg, Manfred Heilig, Theodor Weber
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Patent number: 6727384Abstract: Process for the purification of carbonyl chlorides which have been prepared by reacting carboxylic acids with phosgene or thionyl chloride in the presence of a catalyst adduct, in which the carbonyl chlorides are treated with a hydrohalide of carboxamides of the formula (I) in which R1 is hydrogen or C1- to C3-alkyl; R2 and R3 independently of one another are C1- to C4-alkyl, or R2 and R3 together are a C4- or C5-alkylene chain, and the carbonyl chloride purified in this way is isolated by separation off from the carboxamide hydrohalide phase.Type: GrantFiled: March 12, 2002Date of Patent: April 27, 2004Assignee: BASF AktiengesellschaftInventors: Ralph Busch, Heinz-Josef Kneuper, Theodor Weber, Winfried Müller, Armin Stamm, Jochem Henkelmann
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Publication number: 20030105358Abstract: The present invention provides an efficient method of making O-desmethyl-venlafaxine.Type: ApplicationFiled: November 26, 2002Publication date: June 5, 2003Applicant: WyethInventor: Beat Theodor Weber
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Publication number: 20030028045Abstract: A process for preparing chlorocarbonyl chlorides of the formula (I) 1Type: ApplicationFiled: August 27, 2002Publication date: February 6, 2003Inventors: Armin Stamm, Heinz-Josef Kneuper, Jochem Henkelmann, Theodor Weber, Ralph Busch