Preparation of Isoamyl Acetate by Reaction-Distillation Using Ionic Liquid as Catalyst

Abstract:

In this thesis, isoamyl acetate was synthesized by reaction-distillation , using acetic acid and isoamyl alcohol as starting materials, using acid ion-liquid as catalyst and extracting agent.These are some factors were investigated, including different catalysts, ratio between acid and alcohol, amount of Ion-Liquid, and reflux ratio. Technology to prepare iso-pentyl acetate was optimized with single factor experiments. Results showed that acid ion-liquids are good catalysts and extracting agents, which increased the purity and yield of iso-pentyl acetate, as well as diminished the azeotropic point of iso-pentyl acetate and acetic acid.The optimal technological conditions are as following: ratio of acid:alcohol 2:1 (mol), dosage of ion-liquid V = 2 mL, reflux ratio R = 2.5. Under this condition, purity of obtained iso-pentyl acetate is 99%, and the yield is 85%.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 164-169
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.164
• Online since: July 2012
• Authors: Zhen Yu Li, Hong Yan Tao, Run Ze Yang
• Keywords: Acid Iso-Liquid, Isoamyl Acetate, Isoamyl Alcohol, Rcetic Acid, Reactive Extractive Distillation

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