TY - JOUR

T1 - Phase Equilibria and Extraction Properties of Deep Eutectic Solvents in Alcohol–Ester Systems

AU - Samarov, A. A.

AU - Shishaeva, L. M.

AU - Toikka, A. M.

N1 - Funding Information: This study was supported by the Russian Science Foundation, project no. 19-73-00092. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - In recent years, considerable attention has been given to the capability of deep eutectic solvents (DESs) to replace ionic liquids in extraction processes. The objective of this study is to determine the physicochemical parameters of heterogeneous systems and phase equilibria in industrially important mixtures that contain DESs. Ethanol-ethyl acetate-DES,n-propanol-n-propyl acetate-DES, andn-butanol-n-butyl acetate-DES systems have been investigated at a temperature of 293.15 K and atmospheric pressure. DESs based on choline chloride, namely, its mixtures with glycerin and urea, have been studied. An analysis of the capability of DESs to separate the specified mixtures of alcohols and esters has been performed using data on the equilibrium compositions of coexisting liquid phases. The nonrandom two-liquid (NRTL) model has been used to correlate experimental data on liquid-liquid equilibria.

AB - In recent years, considerable attention has been given to the capability of deep eutectic solvents (DESs) to replace ionic liquids in extraction processes. The objective of this study is to determine the physicochemical parameters of heterogeneous systems and phase equilibria in industrially important mixtures that contain DESs. Ethanol-ethyl acetate-DES,n-propanol-n-propyl acetate-DES, andn-butanol-n-butyl acetate-DES systems have been investigated at a temperature of 293.15 K and atmospheric pressure. DESs based on choline chloride, namely, its mixtures with glycerin and urea, have been studied. An analysis of the capability of DESs to separate the specified mixtures of alcohols and esters has been performed using data on the equilibrium compositions of coexisting liquid phases. The nonrandom two-liquid (NRTL) model has been used to correlate experimental data on liquid-liquid equilibria.

KW - choline chloride

KW - deep eutectic solvents

KW - liquid–liquid equilibria

KW - NRTL model

KW - liquid-liquid equilibria

KW - CHOLINE CHLORIDE

KW - CHEMICAL-EQUILIBRIUM

KW - MIXTURES

KW - DIMETHYL CARBONATE

KW - THERMODYNAMICS

KW - LIQUID-LIQUID EQUILIBRIUM

KW - SEPARATION

KW - ENTRAINERS

KW - SELECTION

KW - ACID ESTERIFICATION

UR - http://www.scopus.com/inward/record.url?scp=85091719288&partnerID=8YFLogxK

U2 - 10.1134/S0040579520040259

DO - 10.1134/S0040579520040259

M3 - Article

AN - SCOPUS:85091719288

VL - 54

SP - 551

EP - 559

JO - Theoretical Foundations of Chemical Engineering

JF - Theoretical Foundations of Chemical Engineering

SN - 0040-5795

IS - 4

ER -