DOI

Deep eutectic solvents (DESs) formed by choline chloride and urea or glycerol were tested for the separation of azeotropic mixtures. The case study was the separation of ethanol–ethyl propionate and n-propanol–n-propyl propionate. For this aim, the experimental data of liquid–liquid equilibria (LLEs) were obtained at temperature 293.15 K and atmospheric pressure. Liquid–liquid tie lines were determined using NMR spectroscopy and analyzed. The extraction performance of DESs was characterized with distribution coefficients and values of selectivity to alcohol. Comparison of selectivity values in systems containing alcohols and esters with another DES formed by choline chloride and malonic acid was carried out. The NRTL model for LLE data correlation was used. The model is shown to give rather good estimates for the selectivity values.
Язык оригиналаанглийский
Страницы (с-по)5545-5552
Число страниц8
ЖурналJournal of Chemical & Engineering Data
Том65
Номер выпуска11
DOI
СостояниеОпубликовано - 12 ноя 2020

    Предметные области Scopus

  • Химия (все)
  • Химическая технология (все)

ID: 70785791