Patents by Inventor Torsten Maurer
Torsten Maurer 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: 9468906Abstract: The present invention relates to a porous inorganic body comprising pores A having a pore size SA in the range of from 0.005 to 20 micrometer and a total pore volume VA, and comprising pores B having a pore size SB in the range of from more than 20 to 1000 micrometer and a total pore volume VB, wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is VC and wherein the ratio RA=VA/VC is in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.Type: GrantFiled: February 28, 2013Date of Patent: October 18, 2016Assignee: BASF SEInventors: Christian Baltes, Tobias Rosendahl, Igor Shishkov, Torsten Mäurer, Wolfgang Rohde, Martin Kraus, Norbert Güntherberg, Isa Alexandra Queiroz Da Fonseca, Alfons Jochum, Siegbert Bouche
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Patent number: 9199223Abstract: Process for producing a supported silver catalyst, which comprises (a) reacting oxalic acid with an alkali metal base in a solvent, preferably water, to the second equivalence point of oxalic acid to give alkali metal oxalate; (b) reacting the alkali metal oxalate obtained according to (a) with silver salt in a solvent, preferably water, to give silver oxalate; (c) forming a complexation of the silver oxalate obtained according to (b) with a diamine compound in a solvent, preferably water, to give a diamine-silver oxalate complex.Type: GrantFiled: February 25, 2015Date of Patent: December 1, 2015Assignee: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Cornelia K. Dobner, Andreas Lehr, Johanna Wanka
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Patent number: 9079154Abstract: The present invention relates to a catalyst for preparing alkylene oxides, which is a supported silver catalyst having a novel promoter combination. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene in the presence of the stated catalyst.Type: GrantFiled: April 29, 2013Date of Patent: July 14, 2015Assignee: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Dirk Hensel, Andreas Lehr
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Publication number: 20150174556Abstract: Process for producing a supported silver catalyst, which comprises (a) reacting oxalic acid with an alkali metal base in a solvent, preferably water, to the second equivalence point of oxalic acid to give alkali metal oxalate; (b) reacting the alkali metal oxalate obtained according to (a) with silver salt in a solvent, preferably water, to give silver oxalate; (c) forming a complexation of the silver oxalate obtained according to (b) with a diamine compound in a solvent, preferably water, to give a diamine-silver oxalate complex.Type: ApplicationFiled: February 25, 2015Publication date: June 25, 2015Inventors: TOBIAS ROSENDAHL, Torsten Mäurer, Cornelia K. Dobner, Andreas Lehr, Johanna Wanka
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Patent number: 8987482Abstract: Process for producing a supported silver catalyst, which comprises (a) reacting oxalic acid with an alkali metal base in a solvent, preferably water, to the second equivalence point of oxalic acid to give alkali metal oxalate; (b) reacting the alkali metal oxalate obtained according to (a) with silver salt in a solvent, preferably water, to give silver oxalate; (c) forming a complexation of the silver oxalate obtained according to (b) with a diamine compound in a solvent, preferably water, to give a diamine-silver oxalate complex.Type: GrantFiled: October 26, 2012Date of Patent: March 24, 2015Assignee: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Cornelia Katharina Dobner, Andreas Lehr, Johanna Wanka
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Patent number: 8933254Abstract: This invention relates to a process, comprising reacting ethylene and oxygen or a source of oxygen in the presence of a catalyst in a reactor to form a product comprising ethylene oxide, wherein the catalyst contains silver or silver compound and a support and the catalyst is in the form of particulate solids having a mean particle diameter from 1 to 1000 ?m and wherein the molar ratio of oxygen to ethylene is from 1:4 to 10:1.Type: GrantFiled: July 13, 2009Date of Patent: January 13, 2015Assignee: BASF SEInventors: Radwan Abdallah, Torsten Mäurer, Tobias Rosendahl, Frank Rosowski, Gerhard Theis, Terry Mazanec, Soumitra Deshmukh, Laura J. Silva
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Patent number: 8921587Abstract: The present invention relates to a shaped catalyst body for preparing ethylene oxide, which comprises at least silver and rhenium applied to an alumina support, and also to a process for producing it, wherein the alumina support has the geometry of a hollow cylinder and the shaped catalyst body has a rhenium content CR and CR/ppm by weight, based on the wall thickness of the hollow cylinder dW in mm, and calculated as element, in the range 120?CR/dW?200.Type: GrantFiled: April 13, 2012Date of Patent: December 30, 2014Assignee: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Cornelia Katharina Dobner
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Patent number: 8779212Abstract: The use of a supported noble metal catalyst obtainable by applying a sparingly soluble noble metal compound to a support from solution or suspension, and subsequently treating thermally, for preparing olefinically unsaturated carbonyl compounds.Type: GrantFiled: March 16, 2009Date of Patent: July 15, 2014Assignee: BASF SEInventors: Torsten Mäurer, Georg Seeber, Radwan Abdallah, Thorsten Johann, Günter Wegner
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Patent number: 8680340Abstract: A method of production of a catalyst that has 0.05-0.25 wt. % of precious metal, preferably for the oxidative dehydrogenation of olefinically unsaturated alcohols, comprising the following steps a) producing a D.C. plasma, b) introducing the metal and support material into the plasma, c) evaporating the metal and support material or “shattering” the solid bodies of metal and support material in the plasma, and reaction of the particles, d) cooling, so that very small particles of composite material are obtained, e) applying the composite material on the catalyst support proper, the correspondingly produced catalyst and use thereof.Type: GrantFiled: April 27, 2012Date of Patent: March 25, 2014Assignee: BASF SEInventors: Georg Seeber, Dirk Grossschmidt, Torsten Mäurer, Christian Baltes
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Patent number: 8629079Abstract: The invention relates to a process for producing a catalyst for the oxidation of ethylene to ethylene oxide, which comprises a) providing a support which comprises alumina and has been impregnated with silver or with a silver-comprising compound and has a temperature T0; and b) heating the impregnated support from the temperature T0 to a temperature T1 at a heating rate of at least 30 K/min, and also the catalyst itself which can be obtained by this process.Type: GrantFiled: April 13, 2012Date of Patent: January 14, 2014Assignee: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Cornelia Katharina Dobner, Thomas Geiger, Achim Gritsch
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Patent number: 8604252Abstract: Supported noble metal-comprising catalysts which can be obtained by a) application of colloidal noble metal in the form of a colloidal solution, optionally in admixture with additives acting as promoters, to a support material, b1) drying of the resulting product at from 150 to 350° C., or b2) drying of the resulting product at from 150 to 350° C. and subsequent calcination at from 350 to 550° C. for epoxidation or oxidative dehydrogenation, a process for producing it, its use and also the use of colloidal noble metal for producing supported catalysts.Type: GrantFiled: June 7, 2010Date of Patent: December 10, 2013Assignee: BASF SEInventors: Georg Seeber, Peter Löchner, Stefan Bauer, Tobias Rosendahl, Torsten Mäurer, Günter Wegner, Martin Kamasz
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Patent number: 8580982Abstract: The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).Type: GrantFiled: June 9, 2010Date of Patent: November 12, 2013Inventors: Georg Seeber, Torsten Mäurer, Gerhard Theis, Dieter Köffer, Frank Rosowski
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Publication number: 20130296587Abstract: The present invention relates to a catalyst for preparing alkylene oxides, which is a supported silver catalyst having a novel promoter combination. The present invention further relates to a process for producing the catalyst and the use of the catalyst for the oxidation of alkylenes to alkylene oxides. In addition, the present invention relates to a process for preparing ethylene oxide from ethylene, which comprises the oxidation of ethylene in the presence of the stated catalyst.Type: ApplicationFiled: April 29, 2013Publication date: November 7, 2013Applicant: BASF SEInventors: Tobias Rosendahl, Torsten Mäurer, Dirk Hensel, Andreas Lehr
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Patent number: 8569546Abstract: In a process for producing C1-C10 aldehydes by oxidative dehydrogenation of C1-C10 alcohols over a shaped catalyst body obtainable by three-dimensional shaping and/or arranging in space of silver-containing fibers and/or threads, the average diameter or the average diagonal length of an essentially rectangular or square cross section of these silver-containing fibers and/or threads is in the range from 30 ?m to 200 ?m.Type: GrantFiled: April 25, 2012Date of Patent: October 29, 2013Assignee: BASF SEInventors: Christian Baltes, Grigorios Kolios, Peter Resch, Ulrike Wegerle, Torsten Mäurer
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Patent number: 8563785Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.Type: GrantFiled: September 10, 2012Date of Patent: October 22, 2013Assignee: BASF SEInventors: Michael Limbach, Joaquim Henrique Teles, Radwan Abdallah, Torsten Mäurer, Thorsten Johann, Manuel Danz
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Publication number: 20130231493Abstract: The present invention relates to a porous inorganic body comprising pores A having a pore size SA in the range of from 0.005 to 20 micrometer and a total pore volume VA, and comprising pores B having a pore size SB in the range of from more than 20 to 1000 micrometer and a total pore volume VB, wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is VC and wherein the ratio RA=VA/VC is in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.Type: ApplicationFiled: February 28, 2013Publication date: September 5, 2013Applicant: BASF SEInventors: Igor Shishkov, Torsten Mäurer, Christian Baltes, Tobias Rosendahl, Wolfgang Rohde, Martin Kraus, Norbert Güntherberg, Isa Alexandra Queiroz Da Fonseca, Alfons Jochum, Siegbert Bouche
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Patent number: 8524927Abstract: This invention relates to a process comprising reacting ethylene and oxygen or a source of oxygen in a process microchannel in the presence of a catalyst to form a product comprising ethylene oxide.Type: GrantFiled: July 13, 2009Date of Patent: September 3, 2013Assignee: Velocys, Inc.Inventors: Terry Mazanec, Soumitra Desmukh, Laura J. Silva, Torsten Maurer, Radwan Abdallah, Frank Rosowski
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Patent number: 8410315Abstract: A process for preparing olefinically unsaturated carbonyl compounds by oxidative dehydrogenation in an oxygenous atmosphere over a supported catalyst which comprises gold and optionally further noble metals at temperatures in the range from 50 to 240° C.Type: GrantFiled: February 27, 2009Date of Patent: April 2, 2013Assignee: BASF SEInventors: Michael Limbach, Joaquim Henrique Teles, Radwan Abdallah, Torsten Mäurer, Thorsten Johann
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Publication number: 20130006021Abstract: A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicant: BASF SEInventors: Michael Limbach, Joaquim Henrique Teles, Radwan Abdallah, Torsten Mäurer, Thorsten Johann, Manuel Danz
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Publication number: 20120277473Abstract: In a process for producing C1-C10 aldehydes by oxidative dehydrogenation of C1-C10 alcohols over a shaped catalyst body obtainable by three-dimensional shaping and/or arranging in space of silver-containing fibers and/or threads, the average diameter or the average diagonal length of an essentially rectangular or square cross section of these silver-containing fibers and/or threads is in the range from 30 ?m to 200 ?m.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Applicant: BASF SEInventors: Christian Baltes, Grigorios Kolios, Peter Resch, Ulrike Wegerle, Torsten Mäurer