2007•Journal of Pingdingshan UniversityRequires access

Study on Preparation of the Butyl Gallate by Nanometer Solid Super-acid SO_4~(2-)/Fe_2O_3

HU Wen-jing

Abstract

Nanometer solid super-acid SO42-/Fe2O3 are prepared by FeCl3 and determined by the TEM.The spectrum of the TEM indicated:it is approximately 100nm.Effects of baking temperature and baking time in nanometer solid super-acid preparation are studied.The butyl gallate is synthesized by butyl alcohol and gallic acid by nanometer solid super-acid SO42-/Fe2O3.The influencing factors of the reaction are investigated.The optimal reaction conditions are as follows:the molar ratio of alcohol to gallic acid is 6∶1,the quantity of catalyst is 3%,reaction time is 2h,and the yield of butyl gallate is 64.9%.

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Key concepts: Gallic acid, Nanometre, Solid acid, Gallate, Molar ratio, Yield (engineering), Nuclear chemistry, Alcohol