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학술발표회초록보기

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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis, CO2-solubility and supercritical CO2 metal extraction of various 18-crown-6 ethers

등록일
2014년 8월 28일 15시 32분 54초
접수번호
1104
발표코드
ORGN.P-852 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
오유리, 김학원1,*
경희대학교 일반대학원 화학과, Korea
1경희대학교 응용화학과, Korea

Supercritical carbon dioxide(sc-CO2) has been suggested as an environmentally benign, green solvent for heavy metal ions extraction. Due to weak solute(polar metal ions)-solvent(nonpolar CO2) interactions, however, the direct extraction of metal ions with sc-CO2 is not efficient. Therefore, the use of highly CO2?soluble chelating ligands has been suggested for the successful chelation method in sc-CO2. Those would make the CO2?insoluble metal ions CO2?soluble and then extractable. We have designed and synthesized novel CO2-philic chelating ligands containing both metal binding segments, such as 18-crown-6 ether moiety and CO2-philic segments, carbonyl and ether moieties, for more effective supercritical CO2 metal extraction. Solubilities of synthesized 18-crown-6 ethers have been tested and explanation of the relationship between structure and solubility has been suggested. With these CO2-soluble 18-crown-6 ethers the sc-CO2 metal extraction (Cs+ and Sr+2 etc) have been studied.


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