A study on the synthesis process of propyl acetate
The effects of feeding method,reaction time,catalyst dosage,acid alcohol molar ratio,and reaction temperature on its synthesis yield,purity,and refining yield were investigated in order to improve the synthesis yield and refining yield of propyl acetate in the chemical experimental technology competition of the National Vocational College Skills Competition.The optimal synthesis conditions were determined by using a water separator device and method for feeding,with a reaction time not exceeding 50 minutes,concentrated sulfuric acid dosage accounting for 3%to 12%of the system mass percentage,acid alcohol molar ratio of 1∶1.0 to 1∶1.3,and reaction termination temperature controlled at 104.0 to 109.0℃,supplemented by good purification and refining operations.Under these conditions,the yield,purity,and refining yield of propyl ester can be maintained above 70%,90%,and 67%respectively.
国家科技期刊平台
NSTL
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