Patents by Inventor Nils Bottke
Nils Bottke 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).
-
Patent number: 8466320Abstract: The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.Type: GrantFiled: June 9, 2008Date of Patent: June 18, 2013Assignee: BASF SEInventors: Veronika Wloka, Torsten Mattke, Carsten Knösche, Daniel Breuninger, Nils Bottke
-
Publication number: 20100189623Abstract: The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base, b) removal of the base by means of adsorption, c) recovery of the acid.Type: ApplicationFiled: June 9, 2008Publication date: July 29, 2010Applicant: BASF SEInventors: Veronika Wloka, Torsten Mattke, Carsten Knoesche, Daniel Breuninger, Nils Bottke
-
Patent number: 7601861Abstract: In a process for preparing alkylaryl compounds by reacting a C10-14-monoolefin mixture with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds and if appropriate subsequently sulfonating and neutralizing the resulting alkylaryl compounds, in the C10-14-monoolefins, on average, more than 0% and up to 100% of methyl branches are present in the longest carbon chain and fewer than 50% of the methyl branches are in the 2-, 3- and 4-position, calculated starting from the chain ends of the longest carbon chain.Type: GrantFiled: October 29, 2004Date of Patent: October 13, 2009Assignee: BASF AktiengesellschaftInventors: Nils Bottke, Regina Benfer, Marco Bosch, Thomas Narbeshuber, Ulrich Steinbrenner, Juergen Stephan
-
Publication number: 20090134066Abstract: The present invention relates to a process for preparing alkylaromatics by reacting aromatic compounds with C1-C14-alkanes in the presence of a heterogeneous catalyst, which comprises using as the catalyst a crystalline, micro- and/or mesoporous solid comprising silicon and at least one father element selected from the group consisting of the transition metals and the main group elements gallium and tin, and activating said catalysts by a reducing pretreatment. Furthermore, the present invention relates to a process for preparing alkylarylsulfonates by sulfonating and neutralizing the alkyl aromatic compounds.Type: ApplicationFiled: August 4, 2005Publication date: May 28, 2009Applicant: BASF AKTIENGESELLSCHAFTInventors: Nils Bottke, Michael Triller, Ulrich Muller, Rolf Pinkos, Thomas Heidemann
-
Publication number: 20090043102Abstract: A process for preparing heteroaromatic alcohols by catalytically hydrogenating heteroaromatic carboxylic acids or esters thereof by hydrogenating with hydrogen in the presence of a ruthenium-phosphine complex in an organic solvent.Type: ApplicationFiled: August 2, 2006Publication date: February 12, 2009Applicant: BASF SEInventors: Nils Bottke, Andrea Haunert
-
Publication number: 20080110763Abstract: A process for the preparation of 2,5-dihydrofuran derivatives substituted in the 3- or 4-position, which in the 2- or in the 5-position or at both positions each carry a C1- to C6-alkoxy radical (DHF-alkoxy derivatives 1), or 1,1,4,4-tetraalkoxy-but-2-ene derivatives substituted in the 3- or 4-position, from 2-butene-1 ,4-diol derivatives of the general formula (I) in which the radicals R1 and R2 independently of one another are hydrogen, C1- to C6-alkyl, C6- to C12-aryl or C5- to C12-cycloalkylene or R1 and R2, together with the double bond to which they are bonded, form a C6- to C12-aryl radical or a mono- or polyunsaturated C5- to C12-cycloalkyl radical, or from their mixture with 2,5-dihydrofuran derivatives substituted in the 3- position or 4-position, which in the 2- or in the 5-position carry a C1- to C6-alkoxy radical, by electro-chemical oxidation in the presence of a C1- to C6-monoalkyl alcohol.Type: ApplicationFiled: March 23, 2006Publication date: May 15, 2008Applicant: BASF AktiengesellschaftInventors: Ingo Richter, Hermann Putter, Ulrich Griesbach, Nils Bottke
-
Publication number: 20080097112Abstract: A catalyst for the hydrogenation of C4-dicarboxylic acids and/or derivatives thereof, preferably maleic anhydride, in the gas phase comprises a) 20-94% by weight of copper oxide (CuO), preferably 40-92% by weight of CuO, in particular 60-90% by weight of CuO, and b) 0.005-5% by weight, preferably 0.01-3% by weight, in particular 0.05-2% by weight, palladium and/or a palladium compound (calculated as metallic palladium) and c) 2-79.995% by weight, preferably 5-59.99% by weight, in particular 8-39.95% by weight, of an oxidic support selected from the group consisting of the oxides of Al, Si, Zn, La, Ce, the elements of groups IIIA to VIIIA and of groups IA and IIA of the Periodic Table of the Elements.Type: ApplicationFiled: May 25, 2006Publication date: April 24, 2008Inventors: Stephan Schlitter, Holger Borchert, Michael Hesse, Markus Schubert, Nils Bottke, Rolf-Hartmuth Fischer, Markus Rösch, Gunnar Heydrich, Alexander Week
-
Patent number: 7351311Abstract: Crude water-containing tetrahydrofuran is purified by passing the crude tetrahydrofuran through three distillation columns, withdrawing water from the bottom of the first column, recycling water-containing tetrahydrofuran from the top of the second column into the first column, passing a sidestream of the first column into the second column, recycling the bottom product of the third column into the first column, and withdrawing a distillate at the top of the first column. Additionally, a sidestream of the second column is passed into the third column and the purified tetrahydrofuran is recovered as the top product of the third column.Type: GrantFiled: February 28, 2003Date of Patent: April 1, 2008Assignee: BASF AktiengesellschaftInventors: Gunther Windecker, Alexander Weck, Rolf-Hartmuth Fischer, Markus Rösch, Nils Bottke, Michael Hesse, Stephan Schlitter, Holger Borchert
-
Patent number: 7307040Abstract: A catalyst for the hydrogenation of C4-dicarboxylic acids and/or derivatives thereof, preferably maleic anhydride, in the gas phase comprises a) 20-94% by weight of copper oxide (CuO), preferably 40-92% by weight of CuO, in particular 60-90% by weight of CuO, and b) 0.005-5% by weight, preferably 0.01-3% by weight, in particular 0.05-2% by weight, palladium and/or a palladium compound (calculated as metallic palladium) and c) 2-79.995% by weight, preferably 5-59.99% by weight, in particular 8-39.95% by weight, of an oxidic support selected from the group consisting of the oxides of Al, Si, Zn, La, Ce, the elements of groups IIIA to VIIIA and of groups IA and IIA of the Periodic Table of the Elements.Type: GrantFiled: July 3, 2002Date of Patent: December 11, 2007Assignee: BASF AktiengesellschaftInventors: Stephan Schlitter, Holger Borchert, Michael Hesse, Markus Schubert, Nils Bottke, Rolf-Hartmuth Fischer, Markus Rösch, Gunnar Heydrich, Alexander Weck
-
Patent number: 7271299Abstract: Optionally alkyl-substituted 1,4-butanediol is prepared from C4-dicarboxylic acids and/or of derivatives thereof by: a) a gas stream of the C4-dicarboxylic acid or the derivative thereof in a first reactor in the gas phase to obtain a product which contains mainly optionally alkyl-substituted ?-butyro-lactone; b) removing succinic anhydride from the product of step a); c) catalytically hydrogenating the product of step b) in a second reactor in the gas phase to obtain optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from intermediates, by-products and any unconverted reactants; and e) optionally recycling unconverted intermediates into one or both hydrogenation stages. The catalysts employed in each of the hydrogenation stages comprise ?95% by weight of CuO, and ?5% by weight of an oxidic support, and the second reactor has a higher pressure than the first reactor.Type: GrantFiled: June 11, 2003Date of Patent: September 18, 2007Assignee: BASF AktiengesellschaftInventors: Michael Hesse, Stephan Schlitter, Holger Borchert, Markus Schubert, Markus Rösch, Nils Bottke, Rolf-Hartmuth Fischer, Alexander Weck, Gunther Windecker, Gunnar Heydrich
-
Publication number: 20070142258Abstract: The preparation of alkylaryl compounds takes place by a) reaction of a C4/C5-olefin mixture over a metathesis catalyst to prepare a C4-8-olefin mixture comprising 2-pentene, and optional removal of the C4-8-olefin mixture, b) removal of from 5 to 100% of the 2-pentene present in stage a) and subsequent reaction over an isomerization catalyst to give a mixture of 2-pentene and 1-pentene which is returned to stage a), c) dimerization of the C4-8-olefin mixture obtained in stage b) following removal in the presence of a dimerization catalyst to give a mixture containing C8-16-olefins, removal of these C8-16-olefins and optional removal of a partial stream thereof, d) reaction of the c8-16-olefin mixtures obtained in stage c) or of the partial stream with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds where, prior to the reaction, 0 to 60% by weight, based on the c8-16-olefin mixtures obtained in stage c), of linear olefins may additionally be added, e) optType: ApplicationFiled: December 17, 2004Publication date: June 21, 2007Applicant: BASF AktiengesellschftInventors: Ulrich Steinbrenner, Thomas Heidemann, Michael Roper, Jurgen Stephan, Thomas Narbeshuber, Jurgen Tropsch, Nils Bottke, Regina Benfer
-
Patent number: 7230141Abstract: A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl or C1–C6-alkoxy, by hydrogenating benzaldehydes and/or benzyl alcohols of the formula II, with hydrogen in the presence of a catalyst, which is described in more detail in the description.Type: GrantFiled: January 20, 2003Date of Patent: June 12, 2007Assignee: BASF AktiengesellschaftInventors: Nils Bottke, Rolf-Hartmuth Fischer, Thomas Nöbel, Markus Rösch
-
Patent number: 7217847Abstract: The invention relates to a process for preparing optically active 2-amino-, 2-chloro-, 2-hydroxy- or 2-alkoxy-1-alcohols by catalytically hydrogenating appropriate optically active 2-amino-, 2-chloro-, 2-hydroxy- and 2-alkoxycarboxylic acids or their acid derivatives in the presence of catalysts comprising palladium and rhenium or platinum and rhenium.Type: GrantFiled: August 28, 2003Date of Patent: May 15, 2007Assignee: BASF AktiengesellschaftInventors: Rolf-Hartmuth Fischer, Nils Bottke
-
Publication number: 20070078075Abstract: In a process for preparing alkylaryl compounds by reacting a C10-14-monoolefin mixture with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds and if appropriate subsequently sulfonating and neutralizing the resulting alkylaryl compounds, in the C10-14-monoolefins, on average, more than 0% and up to 100% of methyl branches are present in the longest carbon chain and fewer than 50% of the methyl branches are in the 2-, 3- and 4-position, calculated starting from the chain ends of the longest carbon chain.Type: ApplicationFiled: October 29, 2004Publication date: April 5, 2007Applicant: BASF AktiengesellschaftInventors: Nils Bottke, Regina Benfer, Marco Bosch, Thomas Narbeshuber, Ulrich Steinbrenner, Jurgen Stephan
-
Patent number: 7193091Abstract: A process for coproducing alkyl-substituted or unsubstituted THF and pyrrolidones by catalytically hydrogenating C4-dicarboxylic acids and/or derivatives thereof in the gas phase in the presence of copper catalysts and reacting GBL with ammonia or primary amines to give pyrrolidones.Type: GrantFiled: February 28, 2003Date of Patent: March 20, 2007Assignee: Basf AktiengesellschaftInventors: Rolf-Hartmuth Fischer, Markus Rösch, Nils Bottke, Alexander Weck, Gunther Windecker, Michael Hesse, Holger Borchert, Stephan Schlitter
-
Patent number: 7169958Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted ?-butyrolactone; b) converting the product stream into the liquid phase; c) introducing the product stream obtained in this way into a second reactor at a temperature of from 100° C. to 240° C.Type: GrantFiled: June 10, 2003Date of Patent: January 30, 2007Assignee: BASF AktiengesellschaftInventors: Michael Hesse, Stephan Schlitter, Holger Borchert, Markus Schubert, Markus Rösch, Nils Bottke, Rolf-Hartmuth Fischer, Alexander Weck, Gunther Windecker, Gunnar Heydrich
-
Patent number: 7154011Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted ?-butyrolactone; b) introducing the product stream obtained in this way into a second reactor or into a second reaction zone of a reactor at a temperature of from 140° C. to 260° C.Type: GrantFiled: June 10, 2003Date of Patent: December 26, 2006Assignee: BASF AktiengesellschaftInventors: Michael Hesse, Stephan Schlitter, Holger Borchert, Markus Schubert, Markus Rösch, Nils Bottke, Rolf-Hartmuth Fischer, Alexander Weck, Gunther Windecker, Gunnar Heydrich
-
Publication number: 20060167323Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted ?-butyrolactone; b) removing succinic anhydride from the product obtained in step a), preferably to a residual level of from <about 0.3 to 0.2% by weight; c) introducing the product stream obtained in step b) into a second reactor at a temperature of from 150° C. to 240° C.Type: ApplicationFiled: June 11, 2003Publication date: July 27, 2006Inventors: Michael Hesse, Stephan Schlitter, Holger Borchert, Markus Schubert, Markus Rosch, Nils Bottke, Rolf-Hartmuth Fischer, Alexander Weck, Gunther Windecker, Gunnar Heydrich
-
Publication number: 20060116521Abstract: The invention relates to a process for preparing optically active 2-amino-, 2-chloro-, 2-hydroxy- or 2-alkoxy-1-alcohols by catalytically hydrogenating appropriate optically active 2-amino-, 2-chloro-, 2-hydroxy- and 2-alkoxycarboxylic acids or their acid derivatives in the presence of catalysts comprising palladium and rhenium or platinum and rhenium.Type: ApplicationFiled: August 28, 2003Publication date: June 1, 2006Applicant: BASH AKTIENGESELLSCHAFTInventors: Rolf-Hartmuth Fischer, Nils Bottke
-
Publication number: 20060052630Abstract: The invention relates to processes for the preparation of alkylarylsulfonates by a) reaction of a C4-olefin mixture over a metathesis catalyst to prepare an olefin mixture comprising 2-pentene and/or 3-hexene and optional removal of 2-pentene and/or 3-hexene, b) dimerization of the 2-pentene and/or 3-hexene obtained in stage a) in the presence of a dimerization catalyst to give a mixture comprising C10-12-olefins and optional removal of the C10-12-olefins, c) reaction of the C10-12-olefin mixtures obtained in stage b) with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds, where, prior to the reaction, additional linear olefins may be added, d) sulfonation of the alkyl aromatic compounds obtained in stage c) and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, linear alkylbenzenes may additionally be added, e) optional mixing of the alkylarylsulfonates obtained in stage d) with linear alkylarylsulfonates.Type: ApplicationFiled: December 22, 2003Publication date: March 9, 2006Applicant: BASF AKTIENGESELLSCHAFTInventors: Thomas Narbeshuber, Ulrich Steinbrenner, Dag Wiebelhaus, Nils Bottke