Patents by Inventor Franz Nierlich
Franz Nierlich 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: 8680356Abstract: The present invention relates to a process for preparing a catalyst which, in a formal sense, comprises 0.1 to 20% by mass of alkali metal and/or alkaline earth metal oxide, 0.1 to 99% by mass of oxide and 0.1 to 99% by mass of silicon dioxide, which is characterized in that it aluminum comprises the steps of treating an aluminosilicate with an aqueous alkali metal and/or alkaline earth metal salt solution under acidic conditions and calcining the aluminosilicate treated with aqueous alkali metal and/or alkaline earth metal salt solution, and to a catalyst which is obtainable by this process and, in a formal sense, comprises alkali metal and/or alkaline earth metal oxide, aluminum oxide and silicon dioxide, which is characterized in that the catalyst, in a formal sense, has a content of alkali metal and/or alkaline earth metal oxides of 0.Type: GrantFiled: February 25, 2011Date of Patent: March 25, 2014Assignee: Evonik Oxeno GmbHInventors: Horst-Werner Zanthoff, Dietrich Maschmeyer, Thomas Quandt, Franz Nierlich, Silvia Santiago Fernandez, Stephan Houbrechts, Georg Skillas, Kurt-Alfred Gaudschun
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Publication number: 20130017587Abstract: The present invention relates to a method for recovering an organic component from an aqueous medium such as a fermentation broth containing microorganism producing said organic component. The method includes increasing the activity of the organic component in the aqueous medium by increasing the concentration of at least one hydrophilic solute in the medium leading to salting-out of the organic component. The microorganisms are genetically modified to be capable of tolerating higher concentrations in the medium in comparison to their unmodified counterparts.Type: ApplicationFiled: December 15, 2010Publication date: January 17, 2013Applicant: Stratley AGInventors: Franz Nierlich, Walter Burger-Kley, Ilja Mikenberg, Bernhard Kneissel
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Patent number: 8269050Abstract: The invention relates to a process for preparing ETBE from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes, by reacting the isobutene present, distillatively removing a fraction comprising 1-butene and isobutene and again reacting the isobutene present therein to give ETBE.Type: GrantFiled: December 21, 2006Date of Patent: September 18, 2012Assignee: Evonik Oxeno GmbHInventors: Jochen Praefke, Armin Rix, Silvia Santiago Fernandez, Matthias Groemping, Frank Hoeper, Udo Peters, Joerg Leistner, Franz Nierlich, Dirk Roettger
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Patent number: 8202959Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: April 27, 2011Date of Patent: June 19, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 8143468Abstract: The present invention relates to the preparation of 3-methylbut-1-ene from a hydrocarbon stream I comprising isobutene by feeding a hydrocarbon stream II which comprises at least 70% by mass of isobutene in relation to the olefins present in the hydrocarbon stream and which has been obtained from hydrocarbon stream I or is identical to it to a process step for hydroformylation in which isobutene is hydroformylated in the presence of a rhodium catalyst, hydrogenating the aldehyde obtained from the hydroformylation of isobutene to the corresponding alcohol and preparing 3-methylbut-1-ene by water elimination from the alcohol.Type: GrantFiled: May 11, 2007Date of Patent: March 27, 2012Assignee: Evonik Oxeno GmbHInventors: Alfred Kaizik, Klaus-Diether Wiese, Dietrich Maschmeyer, Dieter Hess, Wilfried Bueschken, Franz Nierlich
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Patent number: 8138293Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: May 11, 2007Date of Patent: March 20, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Publication number: 20110201767Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Applicant: Evonik Oxeno GmbHInventors: Michael Graß, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 7977523Abstract: A catalyst, useful in the preparation of isoolefins and containing 0.1 to 20% by mass of an alkali metal oxide, an alkaline earth metal oxide and mixtures thereof; 0.1 to 99% by mass of aluminum oxide; and 0.1 to 99% by mass of silicon dioxide, is prepared by a) treating an aluminosilicate with an aqueous alkali metal salt solution, an alkaline earth metal salt solution and mixtures thereof, under acidic conditions, to obtain a treated aluminosilicate; and b) calcining the treated aluminosilicate, to obtain the catalyst.Type: GrantFiled: August 10, 2007Date of Patent: July 12, 2011Assignee: Evonik Oxeno GmbHInventors: Horst-Werner Zanthoff, Dietrich Maschmeyer, Thomas Quandt, Franz Nierlich, Silvia Santiago Fernandez, Stephan Houbrechts, Georg Skillas, Kurt-Alfred Gaudschun
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Patent number: 7977520Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein the overall telomerization process has a process step of catalyst recycling, in which hydrogen is added via a hydrogen source to the mixture present in this process step.Type: GrantFiled: August 23, 2005Date of Patent: July 12, 2011Assignee: EVONIX OXENO GmbHInventors: Cornelia Borgmann, Dirk Roettger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Patent number: 7968758Abstract: A process for the dissociation of methyl tert-butyl ether (MTBE), which includes at least a) catalytic dissociation of MTBE which is present in two streams I and VII over a catalyst to give a dissociation product II, b) separation by distillation of the dissociation product II obtained in a) into an overhead stream III containing more than 90% by mass and a bottom stream IV containing diisobutene, MTBE and more than 80% of the methanol present in the dissociation product II, c) separation by distillation of the bottom stream IV obtained in b) into a methanol-containing bottom stream V, a side stream VI containing diisobutene, methanol and MTBE and an overhead stream VII containing MTBE and methanol and d) recirculation of the overhead stream VII to a).Type: GrantFiled: June 5, 2007Date of Patent: June 28, 2011Assignee: Evonik Oxeno GmbHInventors: Markus Winterberg, Franz Nierlich, Silvia Santiago Fernandez, Walter Luh, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
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Publication number: 20110152596Abstract: A catalyst, useful in the preparation of isoolefins and containing 0.1 to 20% by mass of an alkali metal oxide, an alkaline earth metal oxide and mixtures thereof; 0.1 to 99% by mass of aluminum oxide; and 0.1 to 99% by mass of silicon dioxide, is prepared by a) treating an aluminosilicate with an aqueous alkali metal salt solution, an alkaline earth metal salt solution and mixtures thereof, under acidic conditions, to obtain a treated aluminosilicate; and b) calcining the treated aluminosilicate, to obtain the catalyst.Type: ApplicationFiled: February 25, 2011Publication date: June 23, 2011Applicant: OXENO OLEFINCHEMIE GMBHInventors: Horst-Werner ZANTHOFF, Dietrich Maschmeyer, Thomas Quandt, Franz Nierlich, Silvia Santiago Fernandez, Stephan Houbrechts, Georg Skillas, Kurt-Alfred Gaudschun
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Patent number: 7932428Abstract: The invention relates to a process for preparing 1-butene from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes by partial conversion of the isobutene present, distillative removal of a fraction comprising 1-butene and isobutene, and conversion of the isobutene present therein to tert-butyl ethers.Type: GrantFiled: September 15, 2006Date of Patent: April 26, 2011Assignee: Evonik Oxeno GmbHInventors: Armin Rix, Udo Peters, Jochen Praefke, Dirk Röttger, Franz Nierlich
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Patent number: 7919662Abstract: Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).Type: GrantFiled: August 14, 2007Date of Patent: April 5, 2011Assignee: Evonik Oxeno GmbHInventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
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Patent number: 7910786Abstract: Isobutene is prepared by a process in which a) an MTBE-containing stream I is separated by distillation into an MTBE-containing overhead stream II and a bottom stream III which comprises compounds having boiling points higher than that of MTBE; and b) the MTBE present in the overhead stream II is dissociated over a catalyst to give a dissociation product IV; wherein the stream I has a proportion of 2-methoxybutane (MSBE) of greater than 1000 ppm by mass, based on MTBE, and wherein the separation by distillation in step a) and/or the dissociation in step b) is carried out so that the dissociation product IV has a concentration of less than 1000 ppm by mass of linear butenes, based on a C4-olefin fraction.Type: GrantFiled: August 16, 2007Date of Patent: March 22, 2011Assignee: Evonik Oxeno GmbHInventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
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Publication number: 20110034739Abstract: The invention relates to a supported catalyst based on palladium-?-alumina, which is characterized in that the catalyst support material contains 1 to 1000 ppm by mass of sodium oxide and has a specific pore volume of 0.4 to 0.9 ml/g and a BET surface area of 150 to 350 m2/g. The invention further relates to a process for hydrogenating polyunsaturated ethers with hydrogen to the corresponding saturated ethers, in which the catalyst used is such a catalyst.Type: ApplicationFiled: May 7, 2009Publication date: February 10, 2011Applicant: EVONIK OXENO GMBHInventors: Guido Stochniol, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Wilfried Bueschken
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Publication number: 20100197983Abstract: The invention relates to the preparation of one or more unbranched acyclic octatriene(s) by dimerization of 1,3-butadiene in the presence of a catalyst comprising a carbene ligand and an element of transition group VIII of the Periodic Table of the Elements as metal.Type: ApplicationFiled: October 20, 2005Publication date: August 5, 2010Applicant: OXENO OLEFINCHEMIE GMBHInventors: Matthias Beller, Ralf Jackstell, Surendra Harkal, Dagmara Ortmann, Franz Nierlich
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Publication number: 20100137486Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.Type: ApplicationFiled: February 3, 2010Publication date: June 3, 2010Applicant: OXENO OLEFINCHEMIE GMBHInventors: Wilfried BUESCHKEN, Michael GRASS, Alfred KAIZIK, Dietrich MASCHMEYER, Axel TUCHLENSKI, Franz NIERLICH
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Patent number: 7683204Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.Type: GrantFiled: August 30, 2002Date of Patent: March 23, 2010Assignee: Oxeno Olefinchemie GmbHInventors: Wilfried Büschken, Michael Graβ, Alfred Kaizik, Dietrich Maschmeyer, Axel Tuchlenski, Franz Nierlich
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Patent number: 7645914Abstract: Process for telomerizing noncyclic olefins having at least two conjugated double bonds with at least one nucleophile using a catalyst containing a metal of group 8, 9 or 10 of the Periodic Table of the Elements, wherein hydrogen is added via a hydrogen source to the process in at least one process step in the overall telomerization process.Type: GrantFiled: August 23, 2005Date of Patent: January 12, 2010Assignee: Evonik Oxeno GmbHInventors: Cornelia Borgmann, Dirk Roettger, Dagmara Ortmann, Reiner Bukohl, Stephan Houbrechts, Franz Nierlich
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Patent number: 7632961Abstract: The invention relates to a process for preparing full esters of alicyclic polycarboxylic acids from partial esters of aromatic polycarboxylic acids by hydrogenation of the partial ester followed by esterification of this compound.Type: GrantFiled: September 14, 2002Date of Patent: December 15, 2009Assignee: OXENO Olefinchemie GmbHInventors: Wilfried Bueschken, Michael Grass, Alfred Kaizik, Dietrich Maschmeyer, Franz Nierlich, Axel Tuchlenski