Patents Represented by Attorney Allen Holler

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  • Mixed-metal oxide catalysts and processes for preparing the same
    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