Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106

Abstract

Fig. S.1 The variations of the FAEE content with the progress of expired sunflower oils ethanolysis catalyzed by non-calcined CaO, calcined CaO, Ca(OH)2 and CaCO3; Fig. S.2 Temperature dependence of the density (a) and the viscosity (b) of ethanol and ethanol mixed with the studied DESs: ChCl:EG, ChCl:PG, ChCl:G, ChCl:U, ChCl:DMU and ChCl:TU; Fig. S.3 Reusability of non-calcined CaO catalyst activated by different DESs. CaO activated with a DES was used in the first batch, while only the recovered CaO was used in the other batches; 4 Fig. S.4 The FAEE content after 2 h reaction in four consecutive batches of the sunflower oil ethanolysis catalyzed by either fresh or recovered CaO catalysts in the presence of the recovered ChCl:G DES as a cosolvent (70 °C and the ethanol-to-oil molar ratio was 12:1; reaction systems: recovered ChCl:G DES/glycerol product and recovered CaO - black rectangles, recovered ChCl:G DES/glycerol product and fesh CaO - white rectangles, and treated recovered ChCl:G DES/glycerol product was coupled with fresh CaO - gray rectangles)