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Synthesis of Ethyl Acetate by Ionic Liquid Using Catalytic Reaction Distillation

QU Feng-zuo

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Abstract

Ethyl acetate is synthesized in the reactive distillation column using ionic liquid of 1-hexyl-pyridinium tetrafluoroborate(HPyBF4)as catalyst and solvent.The result shows that HPyBF4 has catalytic activity and 100% selectivity in esterification,but there is no significant change in activity of HPyBF4 after reusing 5 times in esterification.The influences of reflux ratio,feed ratio,amount of HPyBF4 on esterification are studied.The optimal conditions is as follow: acetic acid: ethanol =1.1:1,acetic acid:HPyBF4=8:1,and reflux ratio=3.

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What this paper is about

Ethyl acetate is synthesized in the reactive distillation column using ionic liquid of 1-hexyl-pyridinium tetrafluoroborate(HPyBF4)as catalyst and solvent.The result shows that HPyBF4 has catalytic activity and 100% selectivity in esterification,but there is no significant change in activity of HPyBF4 after reusing 5 times in esterification.The influences of reflux ratio,feed ratio,amount of HPyBF4 on esterification are studied.The optimal conditions is as follow: acetic acid: ethanol =1.1:1,acetic acid:HPyBF4=8:1,and reflux ratio=3.

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Available abstract

Ethyl acetate is synthesized in the reactive distillation column using ionic liquid of 1-hexyl-pyridinium tetrafluoroborate(HPyBF4)as catalyst and solvent.The result shows that HPyBF4 has catalytic activity and 100% selectivity in esterification,but there is no significant change in activity of HPyBF4 after reusing 5 times in esterification.The influences of reflux ratio,feed ratio,amount of HPyBF4 on esterification are studied.The optimal conditions is as follow: acetic acid: ethanol =1.1:1,acetic acid:HPyBF4=8:1,and reflux ratio=3.

Key concepts: Chemistry, Acetic acid, Catalysis, Ionic liquid, Tetrafluoroborate, Selectivity, Fractional distillation, Ethanol

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