Patents by Inventor Kee-Uek Jeung

Kee-Uek Jeung 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).

  • Publication number: 20230025008
    Abstract: The present invention relates to a novel method for preparing lithium oxide. In the present invention, the particle size and shape of lithium oxide may be controlled during the preparing process. In addition, the present invention relates to lithium oxide with controlled particle size and shape prepared by this preparing method.
    Type: Application
    Filed: December 7, 2020
    Publication date: January 26, 2023
    Applicants: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Jae Myung LEE, Jun-Kyu AHN, Woo Chul JUNG, Kee Uek JEUNG, Jung Kwan PARK, Sang Won KIM
  • Publication number: 20220194796
    Abstract: The present invention relates to a lithium compound manufacturing method comprising the steps of heat treatment of lithium-containing ore; roasting the heat-treated ore with sulfuric acid to prepare an acid product; mixing the acid product with leaching water to prepare a leachate; purifying the leachate; and adding a phosphorus supply material and a basic material to the purified leachate to obtain a solid lithium phosphate.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 23, 2022
    Inventors: Kiyoung Kim, Gi-Chun Han, Young-Seon Ko, Hyun Woo Lee, Kwang Seok Park, Juyoung Kim, Woonkyoung Park, Sang Won Kim, Woo Chul Jung, Kee Uek Jeung, Jung Kwan Park, Dong Soo Kim, Sang Gil Lee, Jin Yeop Wi, Young-Su Kwon
  • Patent number: 10239041
    Abstract: Disclosed is a carbonation device including: a storage tank storing a carbonation subject solution; a droplet spray unit spraying the carbonation subject solution from the storage tank as droplets; a carbonation reaction tank disposed with the droplet spray unit and filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed carbonation subject solution with the filled carbonation gas; a carbonation gas supply unit supplying the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure; and a slurry outlet unit ejecting the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level, and a method of carbonation using the same.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: March 26, 2019
    Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, MPPLY CO., LTD.
    Inventors: Uong Chon, Im Chang Lee, Ki Young Kim, Gi-Chun Han, Woonkyoung Park, Kee Uek Jeung, Chang Ho Song
  • Patent number: 10017838
    Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 10, 2018
    Assignee: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Uong Chon, Ki Young Kim, Gi-Chun Han, Chang Ho Song, Young Seok Jang, Kee-Uek Jeung, So Ra Jung
  • Patent number: 9994931
    Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 12, 2018
    Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Uong Chon, Gi-Chun Han, Ki Young Kim, So Ra Jung, Kee Uek Jeung, Chang Ho Song, Young Seok Jang
  • Publication number: 20150197830
    Abstract: Disclosed is a method of extracting lithium from a solution including lithium. The method of extracting lithium from a solution including lithium includes: separating the solution including lithium into a monovalent ion-containing solution and a solution including ions having more than divalence using a separation membrane having a negative charge on its surface; removing impurities from the monovalent ion-containing solution; and precipitating lithium dissolved in the monovalent ion-containing solution into lithium phosphate by adding a phosphorus-supplying material to the monovalent ion-containing solution.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 16, 2015
    Applicant: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Uong Chon, Gi-Chun Han, Ki Young Kim, So Ra Jung, Kee Uek Jeung, Chang Ho Song, Young Seok Jang
  • Publication number: 20150023127
    Abstract: Disclosed is a carbonation device including: a storage tank storing a carbonation subject solution; a droplet spray unit spraying the carbonation subject solution from the storage tank as droplets; a carbonation reaction tank disposed with the droplet spray unit and filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed carbonation subject solution with the filled carbonation gas; a carbonation gas supply unit supplying the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure; and a slurry outlet unit ejecting the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level, and a method of carbonation using the same.
    Type: Application
    Filed: December 27, 2012
    Publication date: January 22, 2015
    Inventors: Uong Chon, Im Chang Lee, Ki Young Kim, Gi-Chun Han, Woonkyoung Park, Kee Uek Jeung, Chang Ho Song
  • Publication number: 20140348734
    Abstract: A method of extracting lithium from a lithium bearing solution and specifically, economically extracting lithium from a lithium bearing solution comprising the steps of: adding a nucleus particle to a lithium bearing solution; and precipitating the dissolved lithium in the lithium bearing solution as lithium phosphate by adding a phosphorous supplying material to the lithium bearing solution including the nucleus particle is provided.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 27, 2014
    Inventors: Uong Chong, Ki Young Kim, Gi-Chun Han, Chang Ho Song, Young Seok Jang, Kee-Uek Jeung, So Ra Jung