Patents by Inventor Huseh Sung Tung

Huseh Sung Tung 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).

  • Method for mitigating HCL generation during 1,1,2,3-tetrachloropropene purification
    Patent number: 9090531
    Abstract: This invention is directed to a method for mitigating HCl generation during 1230xa purification, which comprises the steps of; (a) adding a chelating agent into 1230xa crude, and (b) conducting the 1230xa purification in the presence of said chelating agent at a quantity sufficient to reduce or prevent 1230xa decomposition. Examples of chelating agent include tributyl phosphate (TBP), tripropyl phosphate (TPP), and triethyl phosphate (TEP). The concentration of chelating agent in 1230xa crude can range from 0.001 to 20 wt %, preferably from 0.01 to 10 wt %, and more preferably from 0.1 to 5 wt %.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Huseh Sung Tung, Selma Bektesevic
  • METHOD FOR MITIGATING HCL GENERATION DURING 1,1,2,3-TETRACHLOROPROPENE PURIFICATION
    Publication number: 20140275660
    Abstract: This invention is directed to a method for mitigating HCl generation during 1230xa purification, which comprises the steps of; (a) adding a chelating agent into 1230xa crude, and (b) conducting the 1230xa purification in the presence of said chelating agent at a quantity sufficient to reduce or prevent 1230xa decomposition. Examples of chelating agent include tributyl phosphate (TBP), tripropyl phosphate (TPP), and triethyl phosphate (TEP). The concentration of chelating agent in 1230xa crude can range from 0.001 to 20 wt %, preferably from 0.01 to 10 wt %, and more preferably from 0.1 to 5 wt %.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Honeywell International Inc.
    Inventors: Haiyou Wang, Huseh Sung Tung, Selma Bektesevic