Zhaohua Yan
2004
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Shaanxi Chemical Industry
Abstract
Cation exchange resin coupled with 5A molecular sieve as dehydrator is found to catalytic synthesis of ethyl dodecanoate from dodecanoic acid and ethanol. The catalyst showed a high catalytic activity,and this method have much advantage.such as easy to operate high yields, pollutant reduced. The effects of reactant ratio, reaction time, property and quantity of the catalyst on the esterification were studied. The proper technological conditions were given as follows: the mole ratio of ethanol to dodecanoic acid is 10∶1, reflux time is 13 h, the quantity of the cation exchange resin equal to 12% mass of dodecanoic acid, the mole ratio of the content of 5A molecular sieve to the productive of water is 10∶1, choosing anhydrous alcohol as raw material. The yield of esterification product is 90.1%.