Heterogeneous Tin Catalysts Applied to the Esterification and Transesterification Reactions
Figure 13
Reusability of 79 wt% /Fe2O3-SnO2 and 79 wt% /SnO2 calcined at 450°C in the crude palm oil esterification reactions containing FFA [33]. (Reaction conditions: runs performed in a stirred-tank reactor are equipped with a reflux condenser; crude palm oil containing 10.2% wt FFA (25 mL); methanol (45 mL); catalyst (1 g); 80°C.)
