Patents by Inventor Kwang D. Jung

Kwang D. Jung 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).

  • Process for the preparation of acetic esters from methanol
    Patent number: 5430178
    Abstract: Acetic ester is produced economically by a gas phase carbonylation of methanol with carbon monoxide followed by a transesterification. Specifically, the inventive process comprises (a) carbonylating methanol in a gas phase with carbon monoxide to produce a mixture of acetic acid and methyl acetate; (b) separating from the production mixture the acetic acid, and a mixture of the methyl acetate and the co-catalyst; (c) further separating said methyl acetate and the co-catalyst and recycling the separated co-catalyst to the carbonylation reactor; (d) introducing the separated methyl acetate into a lower region of a transesterification reactor at a temperature of above its boiling point; (e) introducing an C.sub.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: July 4, 1995
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung J. Uhm, Sung H. Han, Jun W. Oh, Oh S. Joo, Kwang D. Jung, Moon S. Lee
  • Process for the preparation of ethanol from methanol
    Patent number: 5414161
    Abstract: Ethanol is produced economically by a gas phase carbonylation of methanol with carbon monoxide followed by a hydrogenation.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: May 9, 1995
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung J. Uhm, Sung H. Han, Jun W. Oh, Oh S. Joo, Kwang D. Jung, Jung Y. Beak