Patents by Inventor Ruozhi Song

Ruozhi Song 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: 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
  • 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
  • Patent number: 6943135
    Abstract: An improved catalyst comprising a mixed metal oxide, either promoted or not, is useful for the vapor phase 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: Grant
    Filed: December 9, 2003
    Date of Patent: September 13, 2005
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Publication number: 20050176985
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitrites involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitrites.
    Type: Application
    Filed: March 10, 2005
    Publication date: August 11, 2005
    Inventors: Leonard Bogan, Anne Gaffney, Scott Han, Michele Heffner, Ruozhi Song, Donald Zolotorofe
  • Patent number: 6916945
    Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase 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: Grant
    Filed: November 25, 2003
    Date of Patent: July 12, 2005
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6914150
    Abstract: An improved catalyst comprising a mixed metal oxide is prepared by the use of a sol-gel technique. The catalyst is useful for the conversion of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid by vapor phase oxidation, or to an unsaturated nitrile by vapor phase oxidation in the presence of ammonia.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: July 5, 2005
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Ruozhi Song
  • Patent number: 6911556
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitriles.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: June 28, 2005
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Donald Lee Zolotorofe
  • Publication number: 20050107252
    Abstract: The present invention includes a process for preparing an improved catalyst having the steps of admixing compounds containing the components of the catalyst and at least one solvent to form a precursor; extracting the precursor with a supercritical stream to form a processed precursor, where the extracting step includes drying the precursor, atomizing the precursor, and combinations thereof; and calcining the processed precursor to form a catalyst. The process may include drying the precursor by introducing the precursor, which has been previously washed with an alcohol, such as ethanol or methanol, into a vessel and introducing the supercritical stream at a pressure and temperature above the critical point of the stream into the vessel. The process may include drying and atomizing the precursor by introducing the supercritical solvent into the vessel at a pressure and a temperature above critical point of the solvent and introducing the precursor into the extraction vessel through a nozzle.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 19, 2005
    Inventors: Anne Gaffney, Jose Martinez, Ruozhi Song
  • Patent number: 6841699
    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; and calcining the recovered insoluble material in a non-oxidizing atmosphere.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: January 11, 2005
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6825380
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase 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: Grant
    Filed: March 12, 2002
    Date of Patent: November 30, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6818588
    Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase 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: Grant
    Filed: April 4, 2002
    Date of Patent: November 16, 2004
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Publication number: 20040181084
    Abstract: Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitrites by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, and ammonia in the presence thereof.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 16, 2004
    Inventors: Anne Mae Gaffney, Ruozhi Song
  • Publication number: 20040181085
    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; and calcining the recovered insoluble material in a non-oxidizing atmosphere.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 16, 2004
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6790988
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase 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: Grant
    Filed: May 7, 2003
    Date of Patent: September 14, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6777571
    Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase 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: Grant
    Filed: August 7, 2003
    Date of Patent: August 17, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Ruozhi Song, Elsie Mae Vickery
  • Publication number: 20040116737
    Abstract: An improved catalyst comprising a mixed metal oxide, either promoted or not, is useful for the vapor phase 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: December 9, 2003
    Publication date: June 17, 2004
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Publication number: 20040116731
    Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase 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: November 25, 2003
    Publication date: June 17, 2004
    Inventors: Ann Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Patent number: 6746983
    Abstract: Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitrites by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, and ammonia in the presence thereof.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: June 8, 2004
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Ruozhi Song