Continuous Synthesis of Methyl Oleate Catalyzed by 262-Sulfonate Molecular Sieve

Methyl oleate was prepared by continous esterification reaction of oleic acid and methanol in a self-made reactor,using a kind of 262-sulfonate molecular sieve as catalyst.Factors that affected the esterification had been investigated,the results showed that the optimum conditions are:mass ratio of methyl alcohol to oleic acid 0.3,flow rate of reactant 2 mL/min,reaction temperature at 90 ℃.After three times of circulating esterification,the esterification rate was up to 99.6%.The catalysts of 262-sulfonated molecular sieves were reused 11 times with 99%of the esterification rate,which demonstrated the high catalytic performance and stability of catalysts.Compared with the traditional process,it has great advantages of high yield,small amount of methanol,loss consumption of energy and easily industrialized production.