Lithium-selective crown ether, lithium adsorbent using same, and preparation method thereof

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United States of America Patent

PATENT NO 9850226
SERIAL NO

14700595

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Abstract

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Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.

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Patent Owner(s)

Patent OwnerAddress
MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION1116 MYONGJI-RO CHEOIN-GU YONGIN-SI GYEONGGI-DO 17058

International Classification(s)

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  • 2015 Application Filing Year
  • D01D Class
  • 276 Applications Filed
  • 191 Patents Issued To-Date
  • 69.21 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chung, Wook-Jin Seongnam-si, KR 4 30
Kim, Hern Seongnam-si, KR 4 541
Lee, Seong-Poong Anyang-si, KR 2 22
Limjuco, Lawrence A Yongin-si, KR 1 1
Nisola, Grace M Yongin-si, KR 2 22
Park, Myoung Jun Yongin-si, KR 2 22
Seo, Jeong Gil Yongin-si, KR 11 57
Torrejos, Rey Eliseo C Yongin-si, KR 2 22
Vivas, Eleazer L Yongin-si, KR 1 1

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges446353201 - 1011 - 2021 - 3031 - 400510152025303540455055606570

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