Patents by Inventor Da-Young Min

Da-Young Min 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).

  • Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using it
    Patent number: 9138730
    Abstract: The present invention relates to a cation-exchanged zeolite catalyst for an transiodination and a process for producing mono-iodo benzene by using it. Particularly, the cation-exchanged zeolite catalyst has a molar ratio of Si/Al from 5 to 100 and is ion-exchanged with an alkali metal or an alkaline earth metal in range of 2% to 50% of ion exchange capacity. Further, the process for producing mono-iodo benzene of the present invention comprises the step of performing a transiodination by using the cation-exchanged zeolite catalyst to produce mono-iodo benzene from reactants including benzene and one or more multi-iodo benzenes selected from the group consisting of di-iodo benzene and tri-iodo benzene.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 22, 2015
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Yong-Jin Yi, Jae-Bong Lim, Il-Hoon Cha, Han-Seok Kim, Yong-ki Park, Won-Choon Choi, Da-Young Min
  • Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using it
    Patent number: 9108180
    Abstract: The present invention relates to a cation-exchanged zeolite catalyst for an transiodination and a process for producing mono-iodo benzene by using it. Particularly, the cation-exchanged zeolite catalyst has a molar ratio of Si/Al from 5 to 100 and is ion-exchanged with an alkali metal or an alkaline earth metal in range of 2% to 50% of ion exchange capacity. Further, the process for producing mono-iodo benzene of the present invention comprises the step of performing a transiodination by using the cation-exchanged zeolite catalyst to produce mono-iodo benzene from reactants including benzene and one or more multi-iodo benzenes selected from the group consisting of di-iodo benzene and tri-iodo benzene.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: August 18, 2015
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Yong-Jin Yi, Jae-Bong Lim, Il-Hoon Cha, Han-Seok Kim, Yong-Ki Park, Won-Choon Choi, Da-Young Min
  • CATION-EXCHANGED ZEOLITE CATALYST AND PROCESS FOR PRODUCING MONO-IODO BENZENE THROUGH TRANSIODINATION BY USING IT
    Publication number: 20120172640
    Abstract: The present invention relates to a cation-exchanged zeolite catalyst for an transiodination and a process for producing mono-iodo benzene by using it. Particularly, the cation-exchanged zeolite catalyst has a molar ratio of Si/Al from 5 to 100 and is ion-exchanged with an alkali metal or an alkaline earth metal in range of 2% to 50% of ion exchange capacity. Further, the process for producing mono-iodo benzene of the present invention comprises the step of performing a transiodination by using the cation-exchanged zeolite catalyst to produce mono-iodo benzene from reactants including benzene and one or more multi-iodo benzenes selected from the group consisting of di-iodo benzene and tri-iodo benzene.
    Type: Application
    Filed: December 24, 2009
    Publication date: July 5, 2012
    Inventors: Yong-Jin Yi, Jae-Bong Lim, Il-Hoon Cha, Han-Seok Kim, Yong-Ki Park, Won-Choon Choi, Da-Young Min