Abstract
The liquid-phase esterification of acetic acid with n-, i- or t-butanol on high-silica zeolites was investigated. HZSM-5 and dealuminated HY zeolites with various Si/Al ratios together with cation exchange resins were used as catalysts. Although the non-dealuminated HY zeolite was hardly active for the esterification, the dealuminated HY and HZSM-5 zeolites were active and their activities changed with their Si/Al ratios. The activity of the zeolites used was much lower than that of the cation exchange resin. The reasons why the zeolite was less active were discussed.
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