公开(公告)号：US20230045283A1

公开(公告)日：2023-02-09

申请号：US17592799

申请日：2022-02-04

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Hyo Joo KIM ,  Woo Yong UM

IPC: C02F1/28 ,  B01J20/10 ,  B01J20/30 ,  B01J20/28

Abstract: Provided is a hydrogen isotope adsorbent with differential binding properties and including mesoporous silica doped with fluorine.

公开(公告)号：US20230405549A1

公开(公告)日：2023-12-21

申请号：US18025001

申请日：2021-08-05

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Jae Eun KANG ,  Woo Yong UM ,  Kumar Singh BHUPENDRA

IPC: B01J20/18 ,  B01J20/16 ,  B01J20/02 ,  B01J20/30 ,  G21F9/12

CPC classification number: B01J20/186 ,  B01J20/165 ,  B01J20/027 ,  B01J20/305 ,  B01J20/3078 ,  G21F9/12

Abstract: The present invention relates to a method of preparing an adsorbent for removing radon. The method includes (a) mixing a fluorine (F) compound and zeolite to produce a second mixture.

公开(公告)号：US20240170172A1

公开(公告)日：2024-05-23

申请号：US18024827

申请日：2021-06-30

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Byoung Kwan KIM ,  Woo Yong UM ,  Jae Hyuk KANG ,  Ju Hyeok LEE

IPC: G21F9/16 ,  C04B14/10 ,  C04B18/04 ,  C04B18/14 ,  C04B22/06 ,  C04B28/26 ,  C04B111/00

CPC classification number: G21F9/165 ,  C04B14/106 ,  C04B18/0463 ,  C04B18/146 ,  C04B22/062 ,  C04B28/26 ,  C04B2111/00784 ,  C04B2111/00862

Abstract: The present invention relates to a method of solidifying radioactive waste containing boron, The method includes (a) mixing the radioactive waste, metakaolin, fumed silica, potassium hydroxide, and water to generate a second mixture, in which the radioactive waste contains boron.

公开(公告)号：US20230381737A1

公开(公告)日：2023-11-30

申请号：US18066456

申请日：2022-12-15

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Ju Eun KIM ,  Seok Ju HONG ,  Woo Yong UM

IPC: B01J20/08 ,  C01G29/00 ,  C01G51/00 ,  C01G53/00 ,  B01J20/12 ,  B01J20/30

CPC classification number: B01J20/08 ,  C01G29/006 ,  C01G51/006 ,  C01G53/006 ,  B01J20/12 ,  B01J20/3085 ,  B01J20/3042 ,  C01P2002/22

Abstract: The present invention relates to a method of preparing a buffer material composed of bentonite modified with a layered double hydroxide (LDH) as a buffer material used for deep geological disposal of radioactive waste, the method including a step (a) of producing a first mixture by adding a compound containing a divalent cationic material, aluminum nitrate (Al(NO3)3), and bismuth nitrate (Bi(NO3)3) to a reactor.