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An advanced approach for the recovery of acetic acid from its aqueous media: deep eutectic liquids versus ionic liquids

  • Selin ŞahinEmail author
  • Ebru Kurtulbaş
Original Article
  • 33 Downloads

Abstract

Green chemistry era forces scientists to develop and apply new media in recovery of high-added value materials. It is interesting to utilize deep eutectic liquids (DELs), which have advantages of biodegradability and very low toxicity and ease of use, in separating these fine materials from a complex environment. DELs have been specially designed and used for the extraction of recovery of acetic acid (AA) from its aqueous solutions. Two DELs containing the same hydrogen bond donor-HBD (glycerol) and two different hydrogen bond acceptor-HBA (a quaternary ammonium salt and an amine-based) have been designed with a molar ratio of 1:2. The tailor-designed extractants were diluted with diethyl adipate (DEA), diethyl malonate (DEM), and diethyl succinate (DES), respectively. Extraction efficiency of the diluents has been increased more than 4 times. To compare the results with that of the ionic liquid (IL), 1-hexyl-3-methylimidazolium bromide has been used in the same organic solvents. Efficiencies of the DELs have surpassed 1.4 to 4 times over the IL.

Graphical abstract

Keywords

Extraction Reactive extraction Ionic liquids Deep eutectic liquid Green chemistry Carboxylic acid 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2020

Authors and Affiliations

  1. 1.Chemical Engineering DepartmentIstanbul University-CerrahpaşaIstanbulTurkey

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