T. Uragami et al. / Catalysis Today 193 (2012) 57–63
63
Table 3
acted as a catalyst and separating reagent for by-product water, a
water-permselective polymer membrane was effective for continu-
ous removal of by-product water, and microwave heating achieved
higher esterification conversion.
Conversion in the synthesis of butyl acetate under various reaction conditions.
H2SO4 (ml)
IL (wt%)
EV method
Microwave
Conversion (%)
None
0.1
None
None
None
0.1
0.1
0.1
0.1
0.1
None
None
20
None
None
None
20
20
20
20
20
None
None
None
PVA
None
PVA
None
None
None
None
None
None
Microwave
None
None
Microwave
None
None
5.1a
15.3a
9.2a
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9.0a
6.1b
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37.8b
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76.5b
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Microwave
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4. Conclusions
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The results of this study can be explained using the illustration in
Fig. 16. For the esterification of n-BuOH with AcOH, an ionic liquid