2006•Journal of Functional BiomaterialsOpen access

A study on the synthesis of amyl butyrate catalyzed by solid superacid

Shaohua Fan

Abstract

Solid superacid SO~(2-)_4/TiO_2 has been prepared by a sol-gel method with titanium tetrabutoxide as precursor.XRD,IR and DRS etc techniques are used for the characterization of samples.Amyl butyrate is synthesized from n-butyric acid and n-amylalcohol in the presence of solid superacid SO~(2-)_4/TiO_2.Reaction mechanism and structure of SO~(2-)_4/TiO_2 are probed.The primary factors which influence the esterification efficiency of n-butyric acid are discussed.The results show that the average esterification efficiency of parallel experiments can reach 96.4% with quantity of catalyst of 0.6g,the molar ratio of alcohol to acid of 1.4∶1,reaction temperature of 125℃,reaction time of 6h.

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Key concepts: Superacid, Catalysis, Molar ratio, Materials science, Butyrate, Alcohol, Butyric acid, Titanium