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).

  • Recalcined catalyst
    Publication number: 20020188149
    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: April 8, 2002
    Publication date: December 12, 2002
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Annealed and promoted catalyst
    Publication number: 20020183198
    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 contact 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; calcining the recovered insoluble material in a non-oxidizing atmosphere; admixing the calcined recovered insoluble material with (i) at least one promoter element or compound thereof and (ii) at least one solvent for the at least one promoter element or compound thereof; removing the at least one solvent to form a catalyst precursor; and calcining the catalyst precursor.
    Type: Application
    Filed: April 8, 2002
    Publication date: December 5, 2002
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • NOx treated mixed metal oxide catalyst
    Publication number: 20020183547
    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: April 4, 2002
    Publication date: December 5, 2002
    Inventors: Anne Mae Gaffney, Michele Doreen Haffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Patent number: 6461996
    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: August 10, 2001
    Date of Patent: October 8, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Publication number: 20020143208
    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: Application
    Filed: March 12, 2002
    Publication date: October 3, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Patent number: 6407280
    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: August 10, 2001
    Date of Patent: June 18, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
  • Promoted multi-metal oxide catalyst
    Patent number: 6407031
    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: August 11, 2001
    Date of Patent: June 18, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Publication number: 20020065431
    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: Application
    Filed: August 10, 2001
    Publication date: May 30, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
  • Ir and/or Sm promoted multi-metal oxide catalyst
    Publication number: 20020062038
    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: Application
    Filed: August 10, 2001
    Publication date: May 23, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • PROMOTED MULTI-METAL OXIDE CATALYST
    Publication number: 20020062042
    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: Application
    Filed: August 11, 2001
    Publication date: May 23, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Publication number: 20020058835
    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: Application
    Filed: August 10, 2001
    Publication date: May 16, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Process of preparing para substituted phenylamines
    Patent number: 5689007
    Abstract: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 18, 1997
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell Edward Malz, Gerard V. Smith, Mark Peter Ferrandino, Ruozhi Song, Chung-Yuan Lin, Franklin Herbert Barrows
  • Process of preparing para substituted phenylamines
    Patent number: 5574187
    Abstract: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: November 12, 1996
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell E. Malz, Gerard V. Smith, Mark P. Ferrandino, Ruozhi Song, Chung-Yuan Lin, Franklin H. Barrows
  • Process of preparing para phenylamines
    Patent number: 5420354
    Abstract: A process of preparing para phenylenediamines, such as, p-aminodiphenylamine. The process involves contacting nitrobenzene or a substituted derivative thereof with hydrogen and an amine, such as aniline, in the presence of a hydrogenation catalyst, a hydrogenation inhibitor, and an acid cocatalyst under reaction conditions.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: May 30, 1995
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell E. Malz, Gerard V. Smith, Mark P. Ferrandino, Ruozhi Song