Probing the Catalytic Efficiency of Supported Heteropoly Acids for Esterification: Effect of Weak Catalyst Support Interactions

Table 2

Esterification of acetic acid with heptanol at 90°C using different amount of catalysts (0.02 and 0.1 g).

Catalyst	Catalyst weight (g)	Conversion (%)
		140 min
H3PW12O40 (HPW)	0.025	72
	0.1	100
HPW-K	0.02	39
	0.1	75
HPW-B	0.02	9
	0.1	73
HPW-M	0.02	30
	0.1	73
HPW-S	0.02	7
	0.1	15
Amberlyst-15	0.1	76