Patents by Inventor Klaus Diehl
Klaus Diehl 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: 9115069Abstract: In the hydroformylation of olefins having 6 to 20 carbon atoms in the presence of a cobalt catalyst in the presence of an aqueous phase with thorough mixing in a reactor, a hydroformylation products-containing first stream is withdrawn at the top of the reactor and an aqueous phase-containing second stream is withdrawn from the bottom of the reactor. The flow rate of the second stream is controlled in accordance with a temperature which is measured at a point in the bottom of the reactor or in a line leading out of the bottom of the reactor. The yield of crude hydroformylation product is increased as a result of stable sustained operation.Type: GrantFiled: November 17, 2014Date of Patent: August 25, 2015Assignee: BASF SEInventors: Rainer Papp, Jens Rudolph, Hans-Günter Thelen, Klaus Diehl
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Publication number: 20150141702Abstract: In the hydroformylation of olefins having 6 to 20 carbon atoms in the presence of a cobalt catalyst in the presence of an aqueous phase with thorough mixing in a reactor, a hydroformylation products-containing first stream is withdrawn at the top of the reactor and an aqueous phase-containing second stream is withdrawn from the bottom of the reactor. The flow rate of the second stream is controlled in accordance with a temperature which is measured at a point in the bottom of the reactor or in a line leading out of the bottom of the reactor. The yield of crude hydroformylation product is increased as a result of stable sustained operation.Type: ApplicationFiled: November 17, 2014Publication date: May 21, 2015Inventors: Rainer Papp, Jens Rudolph, Hans-Günter Thelen, Klaus Diehl
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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: 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: 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: 6963014Abstract: A process for preparing a C13-alcohol mixture comprises a) bringing a butene-containing C4-hydrocarbon stream containing less than 5% by weight, based on the butene fraction, of isobutene into contact with a nickel-containing heterogeneous catalyst at elevated temperature, b) isolating a C12-olefin fraction from the reaction mixture, c) hydroformylating the C12-olefin fraction by reaction with carbon monoxide and hydrogen in the presence of a cobalt catalyst and d) hydrogenating the product from c). The alcohol mixture is suitable for preparing surfactants by alkoxylation, glycosidation, sulfation, phosphation, alkoxylation and subsequent sulfation or alkoxylation and subsequent phosphation.Type: GrantFiled: November 17, 2000Date of Patent: November 8, 2005Assignee: BASF AktiengesellschaftInventors: Edgar Zeller, Marc Walter, Wolfgang Richter, Klaus Diehl, Michael Röper, Jürgen Tropsch
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Patent number: 6777503Abstract: A process for the hydroformylation of olefins having from 20 to 400 carbon atoms by reaction of the olefins with synthesis gas in the presence of a cobalt carbonyl catalyst and recovery of the cobalt catalyst by extraction of the reaction product with an aqueous acidic solution in the presence of oxygen and separation of the organic and aqueous phases, wherein (a) the aqueous phase is separated from the organic phase by means of gravitational forces to the extent that the proportion of aqueous phase dispersed in the organic phase is 2% by weight or less, based on the organic phase, and (b) the organic phase obtained in step (a) is exposed to an electric field to coalesce the remaining dispersed aqueous phase, is described. In this way, the residual cobalt content of the hydroformylation product can be reduced to less than 1 ppm.Type: GrantFiled: July 18, 2002Date of Patent: August 17, 2004Assignee: BASF AktiengesellschaftInventors: Harald Schwahn, Gerhard Borchert, Klaus Diehl, Armin Volker Grenacher, Friedrich Sauer
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Publication number: 20030013819Abstract: A process for the hydroformylation of olefins having from 20 to 400 carbon atoms by reaction of the olefins with synthesis gas in the presence of a cobalt carbonyl catalyst and recovery of the cobalt catalyst by extraction of the reaction product with an aqueous acidic solution in the presence of oxygen and separation of the organic and aqueous phases, wherein (a) the aqueous phase is separated from the organic phase by means of gravitational forces to the extent that the proportion of aqueous phase dispersed in the organic phase is 2% by weight or less, based on the organic phase, and (b) the organic phase obtained in step (a) is exposed to an electric field to coalesce the remaining dispersed aqueous phase, is described.Type: ApplicationFiled: July 18, 2002Publication date: January 16, 2003Inventors: Harald Schwahn, Gerhard Borchert, Klaus Diehl, Armin Volker Grenacher, Friedrich Sauer
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Patent number: 5336836Abstract: Acetaldehyde is removed from C.sub.3 -C.sub.15 hydrocarbons by contacting the hydrocarbon or a hydrocarbon mixture in liquid phase with a zeolite whose pores have a width which is greater than 0.3 nm and up to 0.75 nm.Type: GrantFiled: July 29, 1993Date of Patent: August 9, 1994Assignee: BASF AktiengesellschaftInventors: Ulrich Mueller, Ralf Weiss, Klaus Diehl, Gerhard Sandrock, Lothar Sauvage
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Patent number: 5210214Abstract: A process for preparing indolenines of the formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are independently of one another hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.20 -alkylphenyl, C.sub.7 -C.sub.20 -phenalkyl, or R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3 together are an unsubstituted or C.sub.1 -C.sub.12 -alkyl-substituted C.sub.3 -C.sub.8 -alkylene chain,X and Y are independently of one another hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.2 -C.sub.8 -alkoxyalkyl, C.sub.2 -C.sub.8 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylsulfonyl, halogen, nitro or cyano,by reacting a 4-methylene-1,3-dioxolan-2-one of the formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are each as defined above, with an aniline of the formula III ##STR3## where X and Y are each as defined above, in the presence of a Lewis acid and in the presence or absence of a halide of main group 1 or 2 of the Periodic Table at from 100.degree.Type: GrantFiled: April 10, 1992Date of Patent: May 11, 1993Assignee: BASF AktiengesellschaftInventors: Klaus Diehl, Martin Fischer, Manfred Dimmler