Patents by Inventor Kun-Yung Tsai

Kun-Yung Tsai 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).

  • Patent number: 5770761
    Abstract: Oxidation of liquid ethanol in the presence of excess liquid ethanol and a supported oxidation catalyst provides a one step process for production of ethyl acetate. The acetic acid produced in the oxidation is absorbed by the excess liquid ethanol, which esterifies to ethyl acetate. Ethyl acetate and water are removed from the process for separation of the ethyl acetate. The oxidation portion of process is preferred with a metallic oxidation catalyst on a hydrophobic support. The esterification portion of the process is preferred with an acidic solid ion exchange resin to promote the esterification. The process can be performed in series in separate steps, or preferably, in parallel in a single vessel, preferably a trickle bed reactor.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: June 23, 1998
    Assignee: Chinese Petroleum Corporation
    Inventors: Tzong-Bin Lin, Karl T. Chuang, Kun-Yung Tsai, Jen-Ray Chang
  • Patent number: 5321193
    Abstract: A process for the skeletal isomerization of olefins wherein the olefins are contacted with a SKISO-11 alumina base catalyst to convert into isomerized products effectively under the conversion conditions comprising a temperature of above 200.degree. C. to about 650.degree. C., the pressure of 0.3 to about 10 atmospheres and a molar ratio of hydrogen or nitrogen to olefins feed from 0 to about 10.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: June 14, 1994
    Assignee: Chinese Petroleum Corporation
    Inventors: Chih-Cheng Lin, Hung-Ming Yang, Chong-Chien Lai, Chien-Chung Chang, Larry L. K. Kuo, Kun-Yung Tsai