Title:
ISOTOPE SEPARATION METHOD USING DIFFERENCE IN DIFFUSION BETWEEN ISOTOPES
Document Type and Number:
WIPO Patent Application WO/2023/195553
Kind Code:
A1
Abstract:
This isotope separation method uses a flexible metal organic framework (FMOF) capable of selectively separating/collecting isotopes by means of the kinetic quantum sieve (KQS) effect, and thus can selectively separate a specific isotope from a mixture of isotopes under specific conditions. This separation effect can be attributed to the difference in diffusion rate between isotopes in the pores of a porous material. The difference in diffusion rate between isotopes in the present invention can be determined by a quasi-elastic neutron scattering (QENS) experiment for microscopic observation of isotopic molecular transport during the breathing transition (BT) of pores (100). It can be determined through QENS that deuterium diffuses faster than hydrogen in the pores (100), and the difference in diffusion rate between isotopes may increase with increasing temperature. The present invention can be applied to an adsorbent capable of separating isotopes using the KQS effect even at a high temperature of 77K or higher.
Inventors:
OH HYUN CHUL (KR)
PARK JAE WOO (KR)
JUNG MIN JI (KR)
PARK JAE WOO (KR)
JUNG MIN JI (KR)
Application Number:
PCT/KR2022/004895
Publication Date:
October 12, 2023
Filing Date:
April 05, 2022
Export Citation:
Assignee:
NAT UNIV GYEONGSANG IACF (KR)
International Classes:
B01D59/26; B01J20/22; G21F9/12
Domestic Patent References:
| WO2017003660A1 | 2017-01-05 |
Foreign References:
| KR20190106582A | 2019-09-18 | |||
| KR20190080619A | 2019-07-08 | |||
| KR101421224B1 | 2014-07-22 | |||
| US8940905B2 | 2015-01-27 |
Other References:
JUNG MINJI, PARK JAEWOO, MUHAMMAD RAEESH, KIM JIN YEONG, GRZIMEK VERONIKA, RUSSINA MARGARITA, MOON HOI RI, PARK JITAE T., OH HYUNC: "Elucidation of Diffusivity of Hydrogen Isotopes in Flexible MOFs by Quasi‐Elastic Neutron Scattering", ADVANCED MATERIALS, VCH PUBLISHERS, DE, vol. 33, no. 20, 1 May 2021 (2021-05-01), DE , XP093097151, ISSN: 0935-9648, DOI: 10.1002/adma.202007412
Attorney, Agent or Firm:
TW INTERNATIONAL PATENT AND LAWFIRM (KR)
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