Patents by Inventor Miao Xue

Miao Xue 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).

  • Hydrogenation catalyst, its preparation and use
    Patent number: 7622416
    Abstract: The present invention discloses a hydrogenation catalyst comprising metallic palladium supported on activated carbon support, wherein the penetration depth of metallic palladium in the support is at least about 10 ?m and up to about 100 ?m, the crystallite size of palladium is between about 40 ? and about 120 ?, and the palladium in the surface layer from the surface of support to a depth of 1 ?m is from about 5% to about 40% based on the total atom number of palladium and other elements. The present invention further discloses a process for preparing the hydrogenation catalyst, and a use of said hydrogenation catalyst in the purification of crude terephthalic acid.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 24, 2009
    Assignees: China Petrochemical Corporation, Research Institute of Nanjing Chemical Industry Group
    Inventors: Chaolin Zhang, Zheng Chu, Wei Huang, Aijun Yang, Miao Xue, Hanqiang Jin
  • Hydrogenation catalyst, its preparation and use
    Publication number: 20060154810
    Abstract: The present invention discloses a hydrogenation catalyst comprising metallic palladium supported on activated carbon support, wherein the penetration depth of metallic palladium in the support is at least about 10 ?m and up to about 100 ?m, the crystallite size of palladium is between about 40 ? and about 120 ?, and the palladium in the surface layer from the surface of support to a depth of 1 ?m is from about 5% to about 40% based on the total atom number of palladium and other elements. The present invention further discloses a process for preparing the hydrogenation catalyst, and a use of said hydrogenation catalyst in the purification of crude terephthalic acid.
    Type: Application
    Filed: December 21, 2005
    Publication date: July 13, 2006
    Inventors: Chaolin Zhang, Zheng Chu, Wei Huang, Aijun Yang, Miao Xue, Hanqiang Jin