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Application of Solid Super-acid in Esterification Reaction

Wen-Tao Teng

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Abstract

Isoamy butyrate was prepared with butyric acid and isoamyl alcohol as raw materials on the solid super-acid SO2-4/WO3-TiO2 catalyst prepared form Ti(OC4H9)4 by sol-gel process.The primary factors affecting esterification efficiency of n-butyric acid were investigated.The results showed that the average esterification efficiency of parallel experiment can reach 95.1% by using SO2-4/WO3-TiO2 as catalyst when the mass of SO2-4/WO3-TiO2 is 6g,w(WO3) is 3.0%,molar ratio of isoamyl alcohol to butyric acid is 1.5∶1,reaction time is 4.0 h and reaction temperature is 125 ℃.The process has such advantages as cheap and easily available catalyst,good catalytic results,less amount,easy separation,simple operation,less three wastes and high yield,etc.

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What this paper is about

Isoamy butyrate was prepared with butyric acid and isoamyl alcohol as raw materials on the solid super-acid SO2-4/WO3-TiO2 catalyst prepared form Ti(OC4H9)4 by sol-gel process.The primary factors affecting esterification efficiency of n-butyric acid were investigated.The results showed that the average esterification efficiency of parallel experiment can reach 95.1% by using SO2-4/WO3-TiO2 as catalyst when the mass of SO2-4/WO3-TiO2 is 6g,w(WO3) is 3.0%,molar ratio of isoamyl alcohol to butyric acid is 1.5∶1,reaction time is 4.0 h and reaction temperature is 125 ℃.The process has such advantages as cheap and easily available catalyst,good catalytic results,less amount,easy separation,simple operation,less three wastes and high yield,etc.

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Available abstract

Isoamy butyrate was prepared with butyric acid and isoamyl alcohol as raw materials on the solid super-acid SO2-4/WO3-TiO2 catalyst prepared form Ti(OC4H9)4 by sol-gel process.The primary factors affecting esterification efficiency of n-butyric acid were investigated.The results showed that the average esterification efficiency of parallel experiment can reach 95.1% by using SO2-4/WO3-TiO2 as catalyst when the mass of SO2-4/WO3-TiO2 is 6g,w(WO3) is 3.0%,molar ratio of isoamyl alcohol to butyric acid is 1.5∶1,reaction time is 4.0 h and reaction temperature is 125 ℃.The process has such advantages as cheap and easily available catalyst,good catalytic results,less amount,easy separation,simple operation,less three wastes and high yield,etc.

Key concepts: Isoamyl alcohol, Butyric acid, Catalysis, Molar ratio, Chemistry, Alcohol, Raw material, Yield (engineering)

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