Application of acidic deep eutectic solvents in green extraction of 5-hydroxymethylfurfural

Résumé fourni par la source

The extraction of the 5-hydroxymethylfurfural (5-HMF), as building block for many applications, from aqueous solutions has been became an indispensable challenge. Consequently, this study investigated the extraction ability of acidic deep eutectic solvent-based aqueous two-phase system (ATPS), choline chloride as hydrogen bond acceptor (HBA) and lactic acid, oxalic acid and citric acid as hydrogen bond donor (HBD), countering polypropylene glycol 400 at T = 298.15 K. Two semi-empirical Zafarani-Moattar et al. and Merchuk equations were used to fit the measured binodal data. Further, the NRTL and UNIQUAC models were used for correlating of tie-line data. The consistency of the experimental tie-line data was determined by utilizing the Bachman-Brown and Hand correlations. Also, the performance of these ATPSs to partitioning of 5-HMF, were investigated by calculation of extraction efficiencies, EE% and partition coefficients, K. This strategy indicates DES-based ATPSs have the acceptable extraction efficiency of the 5-HMF in a single-step extraction. A greenness assessment tool, Analytical GREEnness metric (AGREE), was tested to evaluate of greenness of analytical protocol.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.