Patents by Inventor Kyung Bae JUNG

Kyung Bae 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).

  • Method of inhibiting degradation of extractant by anhydrous environment avoiding and metal stripping
    Patent number: 11359260
    Abstract: Provided is a method of inhibiting degradation of an extractant by an anhydrous environment avoiding and metal stripping, the method including the steps of: (a) stopping the addition of soda ash (Na2CO3) to an extracting reaction tank; (b) starting solution recirculation and stopping solvent recirculation of a settler; (c) supplying a solvent from a loaded organic tank to a scrubbing reaction tank, in which the scrubbing reaction tank, stripping reaction tank and extracting reaction tank are connected for circulation and operating stirrers of the scrubbing reaction tank, stripping reaction tank and extracting reaction tank; (d) supplying a sulfuric acid solution having a controlled concentration with a diluting solution to the stripping reaction tank; (e) transferring the solvents of the settler, the loaded organic tank and all the pipes to the scrubbing reaction tank; and (f) stopping the step (e) and initiating solvent recirculation.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 14, 2022
    Assignee: KOREA RESOURCES CORPORATION
    Inventors: Jeon Woong An, Youn Kyu Yi, Kyung Bae Jung, Seung Ho Lee
  • METHOD OF INHIBITING DEGRADATION OF EXTRACTANT BY ANHYDROUS ENVIRONMENT AVOIDING AND METAL STRIPPING
    Publication number: 20210062297
    Abstract: Provided is a method of inhibiting degradation of an extractant by an anhydrous environment avoiding and metal stripping, the method including the steps of: (a) stopping the addition of soda ash (Na2CO3) to an extracting reaction tank; (b) starting solution recirculation and stopping solvent recirculation of a settler; (c) supplying a solvent from a loaded organic tank to a scrubbing reaction tank, in which the scrubbing reaction tank, stripping reaction tank and extracting reaction tank are connected for circulation and operating stirrers of the scrubbing reaction tank, stripping reaction tank and extracting reaction tank; (d) supplying a sulfuric acid solution having a controlled concentration with a diluting solution to the stripping reaction tank; (e) transferring the solvents of the settler, the loaded organic tank and all the pipes to the scrubbing reaction tank; and (f) stopping the step (e) and initiating solvent recirculation.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: Jeon Woong AN, Youn Kyu YI, Kyung Bae JUNG, Seung Ho LEE