Review Article

Heterogeneous Tin Catalysts Applied to the Esterification and Transesterification Reactions

Figure 9

Oleic acid esterification in presence of 0.1 g mesoporous calcined SnO2/WO3, in absence of catalyst and H2SO4 [30]. (Reaction conditions: oleic acid : ethyl alcohol molar ratio (1 : 120), temperature (80°C), 12-hour reaction.)
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