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Free fatty acids (FFA) in low grade oil could be reduced by using an esterification reaction with glycerol, which itself is a waste product of biodiesel synthesis to give mono- and di-glycerides. This study investigated, for the first time, the reaction between oleic acid as a FFA with glycerol, using a phosphonium-based deep eutectic solvent (DES) as a catalyst. The effects of temperature (120 °C,...
Knowledge of volatility of solvents in general and ionic liquids analogues in particular is crucial for thermodynamic modelling and proper solvent selection. In this study, the vapor pressure of a selected set of ionic liquids analogues known as deep eutectic solvents (DES) was investigated by thermogravimetric analysis (TGA). The experimental measurements were conducted for the practical temperature...
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