Patents by Inventor Ki Taeg Jung

Ki Taeg 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).

  • Publication number: 20200369589
    Abstract: The invention relates to a method for hydrogenation of a phthalate compound. According to the method, stereoselectivity of hydrogenation increases and the content of cis isomers in the hydrogen product increases, and thus the quality of the product as a plasticizer may be improved.
    Type: Application
    Filed: November 1, 2018
    Publication date: November 26, 2020
    Inventors: Jae Heum JUNG, Ki Taeg JUNG, Hyo Suk KIM, Seong Min PARK, Kyoung ll LEE, Hye Won LEE
  • Publication number: 20200361846
    Abstract: Provided is a hydrogenation method of a phthalate compound. According to the present invention, stereoselectivity of the hydrogenation reaction may be increased, and thus the content of a cis isomer in a product may be increased. As a result, quality of the hydrogenation product as a plasticizer may be improved.
    Type: Application
    Filed: November 1, 2018
    Publication date: November 19, 2020
    Inventors: Hyo Suk KIM, Ki Taeg JUNG, Seong Min PARK, Kyoung II LEE, Hye Won LEE, Jae Heum JUNG
  • Publication number: 20200316564
    Abstract: The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.
    Type: Application
    Filed: October 16, 2018
    Publication date: October 8, 2020
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Eung Gyu KIM, Won Yong KIM, Jeong Hwan CHUN, Young Jin CHO, Joung Woo HAN, Hyo Suk KIM, Wan Jae MYEONG, Ki Taeg JUNG
  • Publication number: 20200299222
    Abstract: The invention relates to a method for hydrogenation of a phthalate compound. According to the method, the generation of by-products may be inhibited during hydrogenation, and thus, catalytic activity may be improved and catalyst life may be prolonged, thereby increasing the efficiency and economical feasibility of commercial processes. And, since the hydrogenation product prepared by the method has high purity and low acid value, it has excellent quality as a plasticizer, and thus, can be used for various products.
    Type: Application
    Filed: November 1, 2018
    Publication date: September 24, 2020
    Inventors: Hye Won LEE, Hyo Suk KIM, Ki Taeg JUNG, Seong Min PARK, Jae Heum JUNG
  • Publication number: 20200283369
    Abstract: Provided is a hydrogenation method of a phthalate compound. According to the present invention, in the hydrogenation reaction, generation of by-products is suppressed, and thus catalytic activity is improved and life-time is extended, thereby increasing efficiency of a commercial process and economic efficiency. Further, since the hydrogenation product prepared by the present invention has high purity and a low acid value, its quality as a plasticizer is excellent, thereby being applied to a variety of products.
    Type: Application
    Filed: November 1, 2018
    Publication date: September 10, 2020
    Inventors: Ki Taeg JUNG, Hyo Suk KIM, Seong Min PARK, Hye Won LEE, Jae Heum JUNG
  • Patent number: 10173212
    Abstract: The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 8, 2019
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ki Taeg Jung, Kyong Jun Yoon, Hyo Suk Kim, Jang Young Kwak, Pil Je Seong, Kyoung Il Lee
  • Patent number: 10081583
    Abstract: The present invention relates to a stripping method capable of recovering, by an environmentally friendly method, a high-purity ester-based compound without concern over the oxidation of an ester-based compound from a mixture containing the ester-based compound. The stripping method has advantages of generating no wastewater, enabling equipment costs to be reduced by simplifying the process, removing concern over the oxidation of an ester-based compound during the process, and enabling the reuse of the components recovered in the process.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 25, 2018
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ki Taeg Jung, Hyo Suk Kim, Young Jo Kim, Kyong Jun Yoon, Kee Do Han
  • Publication number: 20180015450
    Abstract: The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.
    Type: Application
    Filed: March 31, 2016
    Publication date: January 18, 2018
    Inventors: Ki Taeg JUNG, Kyong Jun YOON, Hyo Suk KIM, Jang Young KWAK, Pil Je SEONG, Kyoung II LEE
  • Publication number: 20170362148
    Abstract: The present invention relates to a stripping method capable of recovering, by an environmentally friendly method, a high-purity ester-based compound without concern over the oxidation of an ester-based compound from a mixture containing the ester-based compound. The stripping method has advantages of generating no wastewater, enabling equipment costs to be reduced by simplifying the process, removing concern over the oxidation of an ester-based compound during the process, and enabling the reuse of the components recovered in the process.
    Type: Application
    Filed: December 7, 2015
    Publication date: December 21, 2017
    Inventors: Ki Taeg JUNG, Hyo Suk KIM, Young Jo KIM, Kyong Jun YOON, Kee Do HAN
  • Publication number: 20160332132
    Abstract: A batch reactor of which an installation structure of baffles is improved is provided. A batch reactor includes: a reactor main body containing a reactant; agitation blades provided in the reactor main body to agitate the reactant; a motor coupled to a rotation shaft of the agitation blades to rotate the agitation blades; and a plurality of baffles provided between an inner wall of the reactor main body and the agitation blades, and disposed at a distance from each other along a circumferential direction of the reactor main body. Each of the plurality of baffles includes a plurality of pipes disposed to be adjacent to each other along a radial direction and a circumferential direction of the reactor main body.
    Type: Application
    Filed: December 18, 2014
    Publication date: November 17, 2016
    Applicant: HANWHA Chemical Corporation
    Inventors: Ki Taeg JUNG, Kee Do Han, Young Jo KIM, Hyo Suk KIM, Kyong Jun YOON, Hye Won LEE
  • Publication number: 20160280629
    Abstract: There are provided a method for hydrogenation of a phthalate compound. According to the method for hydrogenation of the present invention, a hydrogenation reaction is performed in a multi-pipe type reactor in a state in which a viscosity of only a liquid-phase phthalate based raw material is lowered, such that a yield of a hydrogenation reaction process may be improved, and operation stability and economical efficiency on a commercial scale may be improved by hot spot control. According to another method of the present invention, long-term activity of a catalyst used in a reaction is maintained, and performance of the catalyst may be improved, such that stability and economical efficiency of a hydrogenation process may be improved.
    Type: Application
    Filed: December 17, 2014
    Publication date: September 29, 2016
    Inventors: Ki Taeg Jung, Hyo Suk Kim, Kyong Jun Yoon, Kee Do Han, Jang Young Kwak, Young Jo Kim, Pil Je Seong, Sang Wook Lee, Ying Zhang
  • Publication number: 20150166344
    Abstract: An apparatus for preparing an electrode-active material, comprising a reactor that produces the electrode-active material by using a high-temperature high-pressure hydrothermal synthesis method; and decompression equipment that decreases the pressure of a fluid containing the electrode-active material. The decompression equipment includes a pipe-type or a tube-type decompressor.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 18, 2015
    Inventors: Ki Taeg Jung, Sei Ung Park, Kyu Ho Song, Seong Jae Lim, Kee Do Han
  • Publication number: 20150010457
    Abstract: An apparatus for preparing an electrode-active material, comprising a reactor that produces the electrode-active material by using a high-temperature high-pressure hydrothermal synthesis method; and decompression equipment that decreases the pressure of a fluid containing the electrode-active material. The decompression equipment includes a pipe-type or a tube-type decompressor.
    Type: Application
    Filed: January 14, 2013
    Publication date: January 8, 2015
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Ki Taeg Jung, Sei Ung Park, Kyu Ho Song, Seong Jae Lim, Kee Do Han
  • Publication number: 20140295366
    Abstract: Preparation of an electrode-active material, which uses a reactor to produce an electrode-active material by using a supercritical hydrothermal synthesis method, and a double-pipe type heat exchanger which cools the product discharged from the reactor to a subcritical range or below it.
    Type: Application
    Filed: December 10, 2012
    Publication date: October 2, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Kyu Ho Song, Sei Ung Park, Seong Jae Lim, Ki Taeg Jung, Kee Do Han
  • Publication number: 20140131617
    Abstract: The present invention relates to a single-phase lithium-deficient lithium multicomponent transition metal oxide having a layered crystal structure represented by the formula Li1-aM11-x-y-zM2xM3yM4zO2, wherein M1 is one or more transition metals having an oxidation number of +3; M2 is one or more transition metals having an oxidation number of +4; M3 is one or more transition metals having an oxidation number of +5; M4 is one or more elements having an oxidation number of +2; x+2y?z>0; x+y+z<1; 0<a<1; 0<x<0.75; 0?y<0.6; and 0?z<0.3.
    Type: Application
    Filed: July 9, 2012
    Publication date: May 15, 2014
    Inventors: Sei Ung Park, Ju Suk Ryu, Kyu Ho Song, Si Jin Oh, Dong Suek Lee, Seong Jae Lim, Ki Taeg Jung, Kyoo Seung Han