Choline chloride based deep eutectic solvents selection and liquid-liquid equilibrium for separation of dimethyl carbonate and ethanol

Dimethyl carbonate (DMC) is an excellent gasoline and diesel additive in the field of fuel. However, it can form azeotrope with ethanol, so separation of DMC with high purity from the azeotrope is of significance. To separate the azeotrope of DMC and ethanol, the σ-profiles were calculated by the COSMO-SAC model to determine suitable deep eutectic solvents (DESs). On the basis of σ-profiles analysis, four choline chloride based DESs were...