2014•Advanced materials researchOpen access

Reusable and Efficient Polystryrene-Supported Acidic Ionic Liquid Catalyst for the Synthesis of n-Butyl Acetate

Yu Cheng, Biao Zhang, Shang Jiang Dai, Han Lin Tong, Li Xia Li

Abstract

A series of polystyrene-supported 1-(propyl-3-sulfonate)-3-methy-imidazolium hydrosulfate acidic ionic liquid (PS-[SO3H-PMIM][HSO4]) catalysts with different [SO3H-PMIM][HSO4] contents were prepared and tested for esterification of n-butyl alcohol with acetic acid. It was found that the reactivity of the catalyst increased with increasing [SO3H-PMIM][HSO4] content, and best yield of n-Butyl acetate of 98% was obtained using PS-[SO3H-PMIM][HSO4]1 within 1.5h. The catalytic activity of this catalyst decreased slightly after fifth using.

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Key concepts: Catalysis, Ionic liquid, Yield (engineering), Acetic acid, Chemistry, Alcohol, Reactivity (psychology), Nuclear chemistry