Study on synthesis of n-butyl lactate catalyzed by solid acid SnCl_4·5H_2O/C

The nbutyl lactate is synthesised by reaction of lactic acid with nbutyl alcohol in the presence of solid super acid SnCl4·5H2O/C catalyst.The optimum conditions are as follows:molar ratio of lactic acid to nbutyl alcohol was 1∶3 , reflux reaction time was 2.5 h,mass of catalyst was 10%,the yield of nbutyl lacate reached 92.1%.The catalyst had many advantages,such as easy to be made,feasible to be used repeatedly and so on.