Study on Synthesis of Ethyl Hexanoate Catalyzed by Sodium Hydrogen Sulfate Composite Catalyst

Use sodium hydrogen sulphate composite catalyst as catalyst on the esterification reaction of ethyl hexanoate is studied.The optimal reaction conditions is selected as following:weight of catalyst is 3 g/mol hexanoic acid,the mole ratio of alchol to acid is 1.5∶1,water is removed with cyclohexane and the reaction time is 4 h.The esterification of hexanoic acid is about 97.38%.Experimental results show that sodinm hydrogen sulphate is a good catalyst of this esterification reaction,with the little amount used,the good esterification,little waste discharged.Process is significantly shortened.It is very valuable in practice.