Continuous Esterification of n-Butyl Acetate Catalyzed by Ionic Liquid

Jing Peng Zhong; Bao Hua Huang; Zi Jin Li; Lin Lei

doi:10.4028/www.scientific.net/AMR.805-806.1352

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 805-806Continuous Esterification of n-Butyl Acetate...

Continuous Esterification of n-Butyl Acetate Catalyzed by Ionic Liquid

Abstract:

An ionic liquid, 2-Pyrrolidonium hydrogen sulfate (IL, [Hnhp]HSO₄) together with a rectification column, was applied in continuous preparation of n-butyl acetate (n-BuAc) from n-butanol (n-BuOH) and acetic acid (HAc). [Hnhp]HSO₄ was used as a catalyst which showed good activity for the esterification. Optimum conditions were as follows: base fluid n(HAc):n(n-BuOH): n(IL) =6:1:0.3 in reactor at 120 °C, feedstock n(n-BuOH):n(HAc) =1.05:1 by feeding to the reactor at 20 mL·h^-1, aqueous reflux 18 mL·h^-1by feeding to the upper segment of the column and reflux ratio 1. During 48 hours of continuous reaction time, n-BuAc content ranged from 97 % to 85 % in the ester phase from overhead liquid-liquid separator and the reactive distillation system could maintain a good balance.

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Periodical:

Advanced Materials Research (Volumes 805-806)

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1352-1355

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.805-806.1352

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Online since:

September 2013

Authors:

Jing Peng Zhong, Bao Hua Huang, Zi Jin Li, Lin Lei

Keywords:

Acidic Ionic Liquid, Continuous Esterification, N-Butyl Acetate, Reactive Distillation

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