Patents by Inventor Dorit Wolf
Dorit Wolf 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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Publication number: 20220347658Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with nickel nanoparticles dispersed therein, wherein dp, the average diameter of nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.Type: ApplicationFiled: September 3, 2020Publication date: November 3, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Arne REINSDORF, Dorit WOLF, Renat KADYROV, Sarah CHAMSKI
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Publication number: 20220323941Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.Type: ApplicationFiled: September 3, 2020Publication date: October 13, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Arne REINSDORF, Dorit WOLF, Renat KADYROV, Sarah CHAMSKl
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Publication number: 20220314202Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with cobalt nanoparticles dispersed therein, wherein dp, the average diameter of cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.Type: ApplicationFiled: September 3, 2020Publication date: October 6, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Arne REINSDORF, Dorit WOLF, Renat KADYROV, Sarah CHAMSKI
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Patent number: 9029483Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.Type: GrantFiled: February 28, 2011Date of Patent: May 12, 2015Assignee: Evonik Degussa GmbHInventors: Cengiz Azap, Dorit Wolf, Hendrikus Cornelis Louis Abbenhuis, Gijsbert Gerritsen, Karol Grela, Jos B. M. Wilting, Kinga Leszczynska, Justyna Czaban, Anna Wojtasiewicz
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Publication number: 20140243562Abstract: The present invention provides a process for preparing 1,2-pentanediol by reacting furfuryl alcohol with hydrogen in the presence of a catalyst system. The catalyst system contains platinum oxide or contains ruthenium supported on aluminum oxide or activated carbon. The invention also relates to the respective catalysts and processes for producing the catalyst system.Type: ApplicationFiled: November 25, 2013Publication date: August 28, 2014Applicant: Evonik Industries AGInventors: Marianne OMEIS, Manfred NEUMANN, Volker BREHME, Christoph THEIS, Dorit WOLF, Peter CLAUS, Martin LUCAS, Rene ECKERT
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Patent number: 8741253Abstract: Process for preparing higher hydridosilanes of the general formula H—(SiH2)n—H where n?2, in which—one or more lower hydridosilanes—hydrogen, and—one or more transition metal compounds comprising elements of transition group VIII of the Periodic Table and the lanthanides are reacted at a pressure of more than 5 bar absolute, subsequently depressurized and the higher hydridosilanes are separated off from the reaction mixture obtained.Type: GrantFiled: May 25, 2009Date of Patent: June 3, 2014Assignee: Evonik Degussa GmbHInventors: Nicole Brausch, Andre Ebbers, Guido Stochniol, Martin Trocha, Yücel Önal, Jörg Sauer, Bernhard Stützel, Dorit Wolf, Harald Stüger
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Publication number: 20130131284Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.Type: ApplicationFiled: February 28, 2011Publication date: May 23, 2013Applicant: Evonik Degussa GmbHInventors: Cengiz Azap, Dorit Wolf, Hendrikus Cornelis Louis Abbenhuis, Gijsbert Gerritsen, Karol Grela, Jos B.M. Wilting, Kinga Leszczynska, Justyna Czaban, Anna Wojtasiewicz
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Patent number: 8367855Abstract: Process for preparing silylorganoamines, which process comprises the following steps: (A) provision of silylorganoamines of the formula I: [R2a(R1O)3-aSiR3]nNH3-n in a reactor, (B) reaction of the silylorganoamines of the formula I in the presence of particulate metallic noble metal at a temperature in the range from 100° C. to 300° C. to form silylorganoamine products of the formula II: [R2a(R1O)3-aSiR3]yNH3-y, where each radical R1 and each radical R2 is selected independently from the group consisting of alkyl, aryl, aralkyl and cycloalkyl radicals having fewer than 20 carbon atoms; R3 is selected from the group consisting of divalent hydrocarbon radicals having fewer than 20 carbon atoms and a=0, 1, 2 or 3; n=1 or n=2 or n=1 and 2; and y=3.Type: GrantFiled: February 10, 2011Date of Patent: February 5, 2013Assignee: Evonik Degussa GmbHInventors: Christoph Weber, Dorit Wolf
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Publication number: 20110201835Abstract: Process for preparing silylorganoamines, which process comprises the following steps: (A) provision of silylorganoamines of the formula I: [R2a(R1O)3-aSiR3]nNH3-n in a reactor, (B) reaction of the silylorganoamines of the formula I in the presence of particulate metallic noble metal at a temperature in the range from 100° C. to 300° C. to form silylorganoamine products of the formula II: [R2a(R1O)3-aSiR3]yNH3-y, where each radical R1 and each radical R2 is selected independently from the group consisting of alkyl, aryl, aralkyl and cycloalkyl radicals having fewer than 20 carbon atoms; R3 is selected from the group consisting of divalent hydrocarbon radicals having fewer than 20 carbon atoms and a=0, 1, 2 or 3; n=1 or n=2 or n=1 and 2; and y=3.Type: ApplicationFiled: February 10, 2011Publication date: August 18, 2011Applicant: EVONIK DEGUSSA GMBHInventors: Christoph Weber, Dorit Wolf
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Publication number: 20110189072Abstract: Process for preparing higher hydridosilanes of the general formula H—(SiH2)n—H where n?2, in which—one or more lower hydridosilanes—hydrogen, and—one or more transition metal compounds comprising elements of transition group VIII of the Periodic Table and the lanthanides are reacted at a pressure of more than 5 bar absolute, subsequently depressurized and the higher hydridosilanes are separated off from the reaction mixture obtained.Type: ApplicationFiled: May 25, 2009Publication date: August 4, 2011Applicant: Evonik Degussa GmbHInventors: Nicole Brausch, Andre Ebbers, Guido Stochniol, Martin Trocha, Yücel Önal, Jörg Sauer, Bernhard Stützel, Dorit Wolf, Harald Stüger
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Publication number: 20100105945Abstract: Catalyst systems consisting of supported or unsupported transition metal catalysts which have modifiers on the surface. The modifiers have sulphur-containing functionalities (G0). In addition, the modifiers may have a spacer (Sp) and a Bronsted-basic, Bronsted-acidic or Lewis-basic functionality (G1). The catalyst systems may be used for hydrogenation, reductive alkylation and reductive amination.Type: ApplicationFiled: January 28, 2008Publication date: April 29, 2010Inventors: Dorit Wolf, Thomas Riermeier, Karlheinz Drauz, Christoph Weber
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Patent number: 7518009Abstract: The present invention relates to a process for preparing mercaptoorganyl(alkoxysilanes), by hydrogenating bis(alkoxy-silylorganyl) polysulphides with hydrogen in the presence of at least one alcohol and a doped metal catalyst. The doped metal catalyst comprises at least one substance from the group consisting of iron, iron compound, nickel, nickel compound, palladium, palladium compound, osmium, osmium compound, ruthenium, ruthenium compound, rhodium, rhodium compound, iridium and iridium compound plus at least one doping component.Type: GrantFiled: May 2, 2006Date of Patent: April 14, 2009Assignee: Evonik Degussa GmbHInventors: Karsten Korth, Dorit Wolf, Steffen Seebald, Philipp Albert, Reimund Pieter, Alfred Alig
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Patent number: 7339067Abstract: The invention concerns a process for producing mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated at temperatures of <190° C. and pressures of <100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol or H2S.Type: GrantFiled: September 7, 2005Date of Patent: March 4, 2008Assignee: Evonik Degussa GmbHInventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig
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Patent number: 7332619Abstract: The invention relates to a process for the preparation of mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, H2S or water.Type: GrantFiled: September 7, 2005Date of Patent: February 19, 2008Assignee: Degussa AGInventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig
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Publication number: 20070207501Abstract: A searchable library of catalysts, wherein each catalyst is defined by a specific performance profile, is created by a series of steps. The first involves the selection of a catalyst, a substrate and at least two different chemical reactions for catalyst characterization. The next involves contacting the catalyst and substrate under conditions suitable for the selected reaction and measuring for each of the selected reactions a reaction parameter, which is associated with catalyst performance. The catalyst performance is then determined and a value assigned. The performance profile is a table including the performance values. The catalyst is then placed into a library, which is searchable based on the performance profile.Type: ApplicationFiled: January 10, 2007Publication date: September 6, 2007Applicant: Degussa AGInventors: Dorit Wolf, Steffen Seebald, Thomas Tacke
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Publication number: 20060252952Abstract: The present invention relates to a process for preparing mercaptoorganyl(alkoxysilanes), by hydrogenating bis(alkoxy-silylorganyl) polysulphides with hydrogen in the presence of at least one alcohol and a doped metal catalyst. The doped metal catalyst comprises at least one substance from the group consisting of iron, iron compound, nickel, nickel compound, palladium, palladium compound, osmium, osmium compound, ruthenium, ruthenium compound, rhodium, rhodium compound, iridium and iridium compound plus at least one doping component.Type: ApplicationFiled: May 2, 2006Publication date: November 9, 2006Applicant: Degussa AGInventors: Karsten Korth, Dorit Wolf, Steffen Seebald, Philipp Albert, Reimund Pieter, Alfred Alig
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Patent number: 7065450Abstract: This invention relates to a process wherein improved production of catalysts is made possible according to an evolutionary method. The principles of mutation and crossing of catalyst components and determination of performance parameters of the mixed catalysts used here are carried out in 5 to 50 catalyst generations in such way that two mixed catalysts are selected from the same generation in crossing, and at least one selected component is exchanged between the two, and in mutation of a selected mixed catalyst, a selected component from a catalyst mixture is introduced into the catalyst or, if already present in it, it is removed from the catalyst. The selection is made in all cases by using random generators with a uniform distribution. The same procedure is used for the gas flow composition, the temperature and the space velocity as the other performance parameters.Type: GrantFiled: July 19, 2001Date of Patent: June 20, 2006Assignee: Institut fur Angewandte Chemie Berlin-Adlershof e.V.Inventors: Dorit Wolf, Manfred Baerns, Olga Gerlach
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Patent number: 7033558Abstract: The invention refers to a method for removing traces of hydrocarbons, particularly propane, from gas flows. The conversion of hydrocarbons into carbon oxides is achieved by loading suitable carrier materials, such as e.g. TiO2 or Al2O3, with ruthenium as active component, possibly doping them with one or more further element(s), and subsequently calcining and/or reducing them at an increased temperature. By means of these catalysts, and at 20 to 150° C. and while adding molecular oxygen, hydrocarbons, particularly propane, in concentrations ranging from 0.1 to 2,000 ppm are oxidized.Type: GrantFiled: July 19, 2001Date of Patent: April 25, 2006Assignee: Institut fuer Angewandte Chemie Berlin-Aldershof e.V.Inventors: Uwe Rodemerck, Peter Ignaszewski, Peter Claus, Olga Gerlach, Manfred Baerns, Dorit Wolf
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Publication number: 20060052621Abstract: The invention concerns a process for producing mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated at temperatures of <190° C. and pressures of <100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol or H2S.Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Inventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig
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Publication number: 20060052622Abstract: The invention relates to a process for the preparation of mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, H2S or water.Type: ApplicationFiled: September 7, 2005Publication date: March 9, 2006Inventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig