Patents by Inventor Sun Woo YOOK

Sun Woo YOOK 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).

  • Carbon-based, precious metal-transition metal composite catalyst and preparation method therefor
    Patent number: 11969711
    Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 30, 2024
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: Jeong Kwon Kim, Sun Woo Yook, Bong Sik Jeon, Wan Jae Myeong
  • Noble metal-transition metal complex catalyst supported on carbon-coated silica-alumina support, and preparation method therefor
    Patent number: 11912653
    Abstract: Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 27, 2024
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: Jeong Kwon Kim, Wan Jae Myeong, Sun Woo Yook, Bong Sik Jeon
  • Carbon-based noble metal-transition metal catalyst enabling high selective conversion and production method therefor
    Patent number: 11517880
    Abstract: Provided are a carbon-based noble metal-transition metal composite catalyst enabling high selective conversion of a carboxylic acid functional group into an alcohol functional group by pre-treating a carbon carrier including a predetermined ratio or more of mesopores, and a production method therefor.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 6, 2022
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: Sun Woo Yook, Jeong Kwon Kim, Wan Jae Myeong, Bong Sik Jeon
  • METHOD FOR REGENERATING HYDROGENATION CATALYST
    Publication number: 20220072518
    Abstract: The present invention relates to a method for regenerating a dicarboxylic acid or carboxylic acid hydrogenation catalyst, and more particularly, to a method for regenerating a hydrogenation catalyst to be used in a reaction of converting a dicarboxylic acid group into a diol group. The present invention provides an effect of regenerating a catalyst deactivated by the deposition of esters to be produced in a reaction of converting a dicarboxylic acid group into a diol group.
    Type: Application
    Filed: December 30, 2019
    Publication date: March 10, 2022
    Inventors: Sun Woo YOOK, Jeong Kwon KIM, Bong Sik JEON, Wan Jae MYEONG
  • CARBON-BASED, PRECIOUS METAL-TRANSITION METAL COMPOSITE CATALYST AND PREPARATION METHOD THEREFOR
    Publication number: 20220062868
    Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution.
    Type: Application
    Filed: December 10, 2019
    Publication date: March 3, 2022
    Inventors: Jeong Kwon KIM, Sun Woo YOOK, Bong Sik JEON, Wan Jae MYEONG
  • CARBON-BASED NOBLE METAL-TRANSITION METAL CATALYST ENABLING HIGH SELECTIVE CONVERSION AND PRODUCTION METHOD THEREFOR
    Publication number: 20210060534
    Abstract: Provided are a carbon-based noble metal-transition metal composite catalyst enabling high selective conversion of a carboxylic acid functional group into an alcohol functional group by pre-treating a carbon carrier including a predetermined ratio or more of mesopores, and a production method therefor.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 4, 2021
    Applicant: HANWHA SOLUTIONS CORPORATION
    Inventors: Sun Woo YOOK, Jeong Kwon KIM, Wan Jae MYEONG, Bong Sik JEON
  • NOBLE METAL-TRANSITION METAL COMPLEX CATALYST SUPPORTED ON CARBON-COATED SILICA-ALUMINA SUPPORT, AND PREPARATION METHOD THEREFOR
    Publication number: 20210061742
    Abstract: Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.
    Type: Application
    Filed: December 26, 2018
    Publication date: March 4, 2021
    Applicant: HANWHA SOLUTIONS CORPORATION
    Inventors: Jeong Kwon KIM, Wan Jae MYEONG, Sun Woo YOOK, Bong Sik JEON