Patents by Inventor Ronnie Ozer
Ronnie Ozer 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: 9181209Abstract: Furfural is produced by mixing an aqueous feedstock solution containing C5 sugar and/or C6 sugar with a heated, high boiling, water-miscible solvent, such as sulfolane, and a soluble acid catalyst. Furfural product and water are distilled off through a multistage distillation column, leaving non-volatile solvent behind. Typical furfural yields with sulfolane as the reaction solvent are about 80% at as high as 99% conversion. Also, certain by-products (e.g., humins) solubilized in the reaction solvent can be precipitated by addition of water or aqueous feedstock solution and then removed by filtration, thereby providing a convenient and effective way of removing these undesirable byproducts from the reaction mixture.Type: GrantFiled: December 28, 2012Date of Patent: November 10, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Paul Joseph Fagan, Ronnie Ozer, Eric J. Till
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Patent number: 9181211Abstract: Furfural is produced by mixing an aqueous feedstock solution containing C5 sugar and/or C6 sugar with a heated high boiling, water-miscible solvent, such as sulfolane, and a solid acid catalyst. Furfural product and water can be distilled off, leaving non-volatile solvent behind. Furfural yields of over 70% at as high as 99% conversion have been obtained with this process with sulfolane as the reaction solvent and zeolite beta as the solid acid catalyst. Also, certain by-products (e.g., humins) solubilized in the reaction solvent can be precipitated by addition of water or aqueous feedstock solution and then removed by filtration, thereby providing a convenient and effective way of removing these undesirable byproducts from the reaction mixture.Type: GrantFiled: December 28, 2012Date of Patent: November 10, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: David Richard Corbin, Paul Joseph Fagan, Ronnie Ozer, Bhuma Rajagopalan, Eric J. Till
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Patent number: 9067904Abstract: A process is provided for the synthesis of furan and related compounds by vapor phase decarbonylation of furfural and derivatives. The reaction rate, conversion, and selectivity are enhanced by adding water to the feed. The process can be run at lower temperatures than in similar processes run with essentially dry furan and related compounds.Type: GrantFiled: December 8, 2009Date of Patent: June 30, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventor: Ronnie Ozer
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Publication number: 20150152074Abstract: Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.Type: ApplicationFiled: February 11, 2015Publication date: June 4, 2015Inventors: DAVID RICHARD CORBIN, PAUL JOSEPH FAGAN, STUART B. FERGUSSON, KEITH W. HUTCHENSON, PRANIT S. METKAR, RONNIE OZER, CARMO JOSEPH PEREIRA, BHUMA RAJAGOPALAN, SOURAV KUMAR SENGUPTA, ERIC J. TILL
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Patent number: 9012664Abstract: Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.Type: GrantFiled: December 28, 2012Date of Patent: April 21, 2015Assignee: E I du Pont de Nemours and CompanyInventors: David Richard Corbin, Paul Joseph Fagan, Stuart B Fergusson, Keith W Hutchenson, Pranit S Metkar, Ronnie Ozer, Carmo Joseph Pereira, Bhuma Rajagopalan, Sourav Kumar Sengupta, Eric J. Till
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Patent number: 8962896Abstract: Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.Type: GrantFiled: September 10, 2010Date of Patent: February 24, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Paul Joseph Fagan, Thomas G. Calvarese, Ronald James Davis, Ronnie Ozer
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Patent number: 8754245Abstract: A process is provided for the synthesis of furan and related compounds by vapor-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst that has been promoted with an alkali carbonate, such as cesium carbonate. The use of such catalysts, which are inherently less acidic than alumina, results in improved lifetime and high productivity.Type: GrantFiled: August 31, 2010Date of Patent: June 17, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Ronnie Ozer, Ke Li
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Patent number: 8710251Abstract: A process is provided for the synthesis of furan and related compounds by vapor-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst. The use of such catalysts, which are inherently less acidic than alumina, results in improved lifetime and high productivity. The compounds so produced can be used as starting materials for industrial chemicals for use as pharmaceuticals, herbicides, stabilizers, and polymers such as polyether ester elastomers and polyurethane elastomers.Type: GrantFiled: August 31, 2010Date of Patent: April 29, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Ronnie Ozer
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Patent number: 8653287Abstract: A process is provided for the synthesis of furan and related compounds by liquid-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst. The compounds so produced can be used as starting materials for industrial chemicals for use as pharmaceuticals, herbicides, stabilizers, and polymers such as polyether ester elastomers and polyurethane elastomers.Type: GrantFiled: August 31, 2010Date of Patent: February 18, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Ronnie Ozer, Ke Li
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Publication number: 20130303362Abstract: Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.Type: ApplicationFiled: July 16, 2013Publication date: November 14, 2013Inventors: Paul Joseph Fagan, Thomas G. Calvarese, Ronald James Davis, Ronnie Ozer
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Publication number: 20130303363Abstract: Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst to composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.Type: ApplicationFiled: July 16, 2013Publication date: November 14, 2013Inventors: PAUL JOSEPH FAGAN, Thomas G. Calvarese, Ronald James Davis, Ronnie Ozer
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Conversion of butanol to a reaction product comprising 2-ethylhexanol using hydroxyapatite catalysts
Patent number: 8431753Abstract: Catalytic processes to produce a reaction product comprising 2-ethylhexanol by contacting a reactant comprising 1-butanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used.Type: GrantFiled: March 9, 2011Date of Patent: April 30, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Ronnie Ozer, Paul Joseph Fagan, Thomas G. Calvarese -
Patent number: 8404871Abstract: A process is provided for the synthesis of furan and related compounds by vapor phase decarbonylation of furfural and derivatives, using a palladium/alumina catalyst that has been promoted with an alkali carbonate. Catalyst lifetime is improved. The catalyst can be regenerated in situ by feeding a mixture of air and steam, with a composition of between about 2% and about 40% air, to the catalyst bed at a temperature between about 300° C. and about 500° C.Type: GrantFiled: December 8, 2009Date of Patent: March 26, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Ke Li, Ronnie Ozer
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Patent number: 8398728Abstract: The present invention further contemplates a process for making a dialkyl ether composition comprising two or more ethers of the formula R1—O—R2. The present invention further contemplates a process for making a dialkyl ether composition starting from a first reaction product comprising 1-butanol. The invention further contemplates a dialkyl ether composition comprising two or more ethers of the formula R1—O—R2, where each R1 and R2 can independently be any carbon chain length, saturated or unsaturated; branched or straight-chain, of between C2 and C10; specifically between C4 and C10; more specifically between C4 and C6; more specifically C6; more specifically 04.Type: GrantFiled: November 13, 2008Date of Patent: March 19, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Ronnie Ozer, Michael B. D'Amore
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Patent number: 8318989Abstract: A process is provided for making a reaction product comprising 1-butanol by contacting a reactant comprising ethanol containing a significant amount of water with a decomposed hydrotalcite catalyst. The catalyst may be 1) hydrotalcites which have been thermally decomposed, either partially or fully, to form catalytically active species; 2) combinations of hydrotalcites (optionally containing transition metals) and metal carbonates; and 3) hydrotalcites (optionally containing transition metals) surface-impregnated with a transition metal nitrate, where catalysts 2) and 3) have also been thermally decomposed, either partially or fully, to form catalytically active species. The catalyst, at a selected reaction time, has greater activity when the ethanol contains water as compared to when the ethanol is anhydrous.Type: GrantFiled: December 21, 2009Date of Patent: November 27, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Ronnie Ozer, Michael B. D'Amore
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CONVERSION OF BUTANOL TO A REACTION PRODUCT COMPRISING 2-ETHYLHEXANOL USING HYDROXYAPATITE CATALYSTS
Publication number: 20120232314Abstract: Catalytic processes to produce a reaction product comprising 2-ethylhexanol by contacting a reactant comprising 1-butanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Ronnie Ozer, Paul Joseph Fagan, Thomas G. Calvarese -
Publication number: 20120165560Abstract: A process is provided for the synthesis of furan and related compounds by vapor-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst. The use of such catalysts, which are inherently less acidic than alumina, results in improved lifetime and high productivity. The compounds so produced can be used as starting materials for industrial chemicals for use as pharmaceuticals, herbicides, stabilizers, and polymers such as polyether ester elastomers and polyurethane elastomers.Type: ApplicationFiled: August 31, 2010Publication date: June 28, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Ronnie Ozer
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Publication number: 20120165577Abstract: Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM?xM?yM??z)5(PO4)3(OH), wherein M is Mg; M? is Ca; M? is Sr; M?? is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.Type: ApplicationFiled: September 10, 2010Publication date: June 28, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Paul Joseph Fagan, Thomas G. Calvarese, Ronald James Davis, Ronnie Ozer
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Publication number: 20120165561Abstract: A process is provided for the synthesis of furan and related compounds by vapor-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst that has been promoted with an alkali carbonate, such as cesium carbonate. The use of such catalysts, which are inherently less acidic than alumina, results in improved lifetime and high productivity.Type: ApplicationFiled: August 31, 2010Publication date: June 28, 2012Applicant: E.I. DUPONT DE NEMOURS AND COMPANYInventors: Ronnie Ozer, Ke Li
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Publication number: 20120157698Abstract: A process is provided for the synthesis of furan and related compounds by liquid-phase decarbonylation of furfural and derivatives, using a palladium/metal aluminate catalyst. The compounds so produced can be used as starting materials for industrial chemicals for use as pharmaceuticals, herbicides, stabilizers, and polymers such as polyether ester elastomers and polyurethane elastomers.Type: ApplicationFiled: August 31, 2010Publication date: June 21, 2012Applicant: E. I DU PONT DE NEMOURS AND COMPANYInventors: Ronnie Ozer, Ke Li