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Extraction Equilibrium of Acrylic Acid by Aqueous Two-Phase Systems Using Hydrophilic Ionic Liquids
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  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 5,  2014, pp.627-631
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.5.627
 Title & Authors
Extraction Equilibrium of Acrylic Acid by Aqueous Two-Phase Systems Using Hydrophilic Ionic Liquids
Lee, Yong Hwa; Lee, Woo Youn; Kim, Ki-Sub; Hong, Yeon Ki;
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 Abstract
As an effective method for extraction of acrylic acid, aqueous two-phase systems based on morpholinium ionic liquids were used in this study. Effects of the alkyl chain length of cation in morpholinium ionic liquids on phase diagram and extraction efficiencies were investigated. Experimental results show that aqueous two phase systems can be formed by adding appropriate amount of morpholinium ionic liquids to aqueous solutions. It can be found that the ability of morpholinium ionic liquids for phase separation followed the order [HMMor][Br]>[OMMor][Br]>[BMMor][Br]>[EMMor][Br]. There was little difference between binodal curves of imidazolium ionic liquids and those of morpholinium ionic liquids. 50~90% of the extraction efficiency was observed for acrylic acid by aqueous two phase extraction of acrylic acid with morpholinium ionic liquids. It can be concluded that morpholinium ionic liquids/ were effective for aqueous two phases extraction of acrylic acid comparing to imidazolium ionic liquids/ systems because of their lower cost.
 Keywords
Ionic Liquids;Morpholinium;Aqueous Two-phases;Binodal Curve;Acrylic Acid;
 Language
Korean
 Cited by
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이미다졸계 이온성액체와 염을 포함한 수상이성분계를 이용한 숙신산의 추출 평형,이용화;강정원;홍연기;김기섭;

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피페리딘계 이온성 액체와 포스페이트 염으로 구성된 수상이성분계를 이용한 숙신산의 추출,이우윤;홍연기;

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