Patents by Inventor Zhidong George Zhu

Zhidong George Zhu 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).

  • IRIDIUM CATALYSTS FOR CARBONYLATION
    Publication number: 20160325270
    Abstract: A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation.
    Type: Application
    Filed: July 15, 2016
    Publication date: November 10, 2016
    Applicant: Eastman Chemical Company
    Inventors: Zhidong George Zhu, Gerald Charles Tustin, Joseph Robert Zoeller, Mary Kathleen Moore, David Alan Jenkins
  • Iridium catalysts for carbonylation
    Patent number: 9421522
    Abstract: A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 23, 2016
    Assignee: Eastman Chemical Company
    Inventors: Zhidong George Zhu, Gerald Charles Tustin, Joseph Robert Zoeller, Mary Kathleen Moore, David Alan Jenkins
  • Carbonylation catalyst and process using same
    Patent number: 9387469
    Abstract: Carbonylation catalysts and methods for using them are disclosed. In some embodiments, the carbonylation catalyst includes the contact product of: (a) a nitrogen compound selected from monomeric pyridines and imidazoles; (b) a Group VIII metal; and (c) an alkali metal compound; wherein the catalyst material is on a solid support.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: July 12, 2016
    Assignee: Eastman Chemical Company
    Inventors: Zhidong George Zhu, Gerald Charles Tustin, Joseph Robert Zoeller, Craig Steven Dunn, Larry Ronnie Lingerfelt, Mary Kathleen Moore
  • CARBONYLATION CATALYST AND PROCESS USING SAME
    Publication number: 20150182957
    Abstract: Carbonylation catalysts and methods for using them are disclosed. In some embodiments, the carbonylation catalyst includes the contact product of: (a) a nitrogen compound selected from monomeric pyridines and imidazoles; (b) a Group VIII metal; and (c) an alkali metal compound; wherein the catalyst material is on a solid support.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Zhidong George Zhu, Gerald Charles Tustin, Joseph Robert Zoeller, Craig Steven Dunn, Larry Ronnie Lingerfelt, Mary Kathleen Moore