Patents by Inventor Scott Han

Scott Han 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).

  • Publication number: 20090048411
    Abstract: A method for producing a mixture of ethylene and carbon monoxide by contacting ethane and an oxygen source at a temperature of at least 500° C. to produce ethylene and carbon monoxide. A method for producing an alkyl propionate by steps of: (a) contacting ethane and an oxygen source at a temperature of at least 500° C. to produce ethylene; (b) contacting an alcohol, ethylene and carbon monoxide with an ethylene carbonylation catalyst to produce the alkyl propionate; and (c) separating the alkyl propionate from byproducts and starting materials. The method further comprises condensing the alkyl propionate with formaldehyde to produce an alkyl methacrylate.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 19, 2009
    Inventors: Abraham Benderly, Scott Han, Mark Anthony Silvano, Donald Lee Zolotorofe
  • Publication number: 20080154056
    Abstract: An improved process for the production of unsaturated carboxylic acids and unsaturated nitriles from their corresponding C3 to C5 alkanes, or mixtures of C3 to C5 alkanes and alkenes, that involves oxidation in the presence of a supported Mo-V-based mixed metal oxide catalyst in a multi-stage reaction system which employs both separation of the oxidation product from one or more intermediate effluent streams, as well as feeding additional oxygen to reaction zones subsequent to the first reaction zone.
    Type: Application
    Filed: November 16, 2007
    Publication date: June 26, 2008
    Inventors: Anne Mae Gaffney, Scott Han
  • Patent number: 7371883
    Abstract: An improved single-step catalytic vapor phase (amm)oxidation process for the conversion of one or more C2-C8 alkanes to one or more oxidation products, including unsaturated carboxylic acids and unsaturated nitriles, whereby a higher yield of the oxidation products is achieved.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: May 13, 2008
    Assignee: Rohm and Haas Company
    Inventors: Rebecca Fushimi, Anne Mae Gaffney, John T. Gleaves, Scott Han, Sergiy O. Shekhtman, Gregory S. Yablonsky
  • Patent number: 7326668
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield and used to produce.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: February 5, 2008
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Jr., Anne Mae Gaffney, Scott Han
  • Patent number: 7304014
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: December 4, 2007
    Assignee: Rohm and Haas Company
    Inventors: Fernando Antonio Pessoa Cavalcanti, Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Ruozhi Song, Elsie Mae Vickery
  • Publication number: 20070179042
    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is regenerated, selectively enriched or selectively poisoned as a catalyst to reduce catalyst aging for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by contacting said mixed metal oxide with a an oxidizing gas such as oxygen, air, steam and combinations thereof is permitted to flow through the catalyst in a regenerator at a temperature of from 300° C. to 600° C. to form said regenerated catalyst.
    Type: Application
    Filed: January 8, 2007
    Publication date: August 2, 2007
    Inventors: Fernando Antonio Pessoa Cavalcanti, Scott Han, Peter David Klugherz, Andrew Michael Lemonds, Daniel J. Martenak, Elsie Mae Vickery, Donald Lee Zolotorofe
  • Publication number: 20070100155
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield and used to produce.
    Type: Application
    Filed: December 18, 2006
    Publication date: May 3, 2007
    Inventors: Leonard Bogan, Daniel Bors, Fernando Cavalcanti, Michael Clark, Anne Gaffney, Scott Han
  • Patent number: 7208445
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: April 24, 2007
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Jr., Anne Mae Gaffney, Scott Han
  • Publication number: 20060122055
    Abstract: The present invention relates to mixed metal oxide (MMO1) catalysts. MMO1 catalyst performance is improved with a sub-monolayer deposition of Te onto its surface by vapor deposition. The selectivity to acrylic acid improved by approximately 6% and the acrylic acid yield by 3%, absolute. Applying a similar Te loading onto MMO1 by wet impregnation methods did not improve catalytic performance. Post treatment of the Te vapor deposited MMO1 catalyst with oxygen at elevated temperatures gave improved catalytic performance when compared to a corresponding sample treated with an inert gas at the same elevated temperatures.
    Type: Application
    Filed: November 14, 2005
    Publication date: June 8, 2006
    Inventors: Anne Gaffney, John Gleaves, Scott Han, Ruozhi Song
  • Patent number: 7049466
    Abstract: A method for producing an unsaturated carboxylic acid comprises: (a) contacting, in a reaction zone, an alkane with a catalyst containing a mixed metal oxide, under conditions which produce a product gas comprising the unsaturated carboxylic acid, unreacted alkane and a product alkene; (b) recovering unreacted alkane and product alkene from the product gas; and (c) recycling the recovered unreacted alkane and product alkene to the reaction zone; wherein the mixed metal oxide consists of a material having the formula AaMmNnXxOo wherein A is at least one element selected from the group consisting of molybdenum and tungsten, wherein M is at least one element selected from the group consisting of vanadium, cerium and chromium, wherein N is at least one element selected from the group consisting of tellurium, bismuth and selenium, wherein X is at least one element selected from the group consisting of niobium, tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel,
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 23, 2006
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Donald Lee Zolotorofe
  • Publication number: 20060052634
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 9, 2006
    Inventors: Leonard Bogan, Daniel Bors, Fernando Cavalcanti, Michael Clark, Anne Gaffney, Scott Han
  • Patent number: 6989460
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitriles are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: January 24, 2006
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, III, Michael William Linsen
  • Publication number: 20050261511
    Abstract: An improved single-step catalytic vapor phase (amm)oxidation process for the conversion of one or more C2-C8 alkanes to one or more oxidation products, including unsaturated carboxylic acids and unsaturated nitriles, whereby a higher yield of the oxidation products is achieved.
    Type: Application
    Filed: April 8, 2005
    Publication date: November 24, 2005
    Inventors: Rebecca Fushimi, Anne Gaffney, John Gleaves, Scott Han, Sergiy Shekhtman, Gregory Yablonsky
  • Patent number: 6965050
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: November 15, 2005
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Jr., Anne Mae Gaffney, Scott Han
  • Publication number: 20050239643
    Abstract: Structured catalysts useful for oxidizing alkanes, alkenes and combinations of alkanes and alkenes are described. The structure catalysts comprise one or more mixed metal oxide catalysts having a three dimensional structure that is self-supporting and that facilitates movement of gas phase reactants and products and one or more mixed metal oxide catalysts deposited on a three dimensional form of continuous unitary structures having openings that facilitates movement of gas phase reactants and products.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 27, 2005
    Inventors: Abraham Benderly, Anne Gaffney, Scott Han, Stephen Maroldo
  • Publication number: 20050228196
    Abstract: A supported catalyst comprising a mixed metal oxide is useful for the vapor phase catalytic partial oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile.
    Type: Application
    Filed: May 31, 2005
    Publication date: October 13, 2005
    Inventors: Anne Gaffney, Scott Han, Michelle Heffner, Nneka McNeal, Elsie Vickery
  • Publication number: 20050203309
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Cavalcanti, Sanjay Chaturvedi, Anne Gaffmey, Scott Han, Ruozhi Song, Elsie Vickery
  • Publication number: 20050203312
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Pessoa Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery
  • Publication number: 20050202965
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery
  • Publication number: 20050202964
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Antonio Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery