Heterogeneous Tin Catalysts Applied to the Esterification and Transesterification Reactions

Table 10

SnO recycling study reaction conditions [34]^a.

Cycle	1	2	3	4	5	6	7	8	9	10
Yield (%)	69	68	67	66	65	65	64	64	62	62

aReaction conditions: methyl alcohol (4 g); fatty acid (10 g), catalyst (0.1 g), temperature (160°C); reaction time (1 hour).