Acta Phys. -Chim. Sin. ›› 1993, Vol. 9 ›› Issue (02): 242-246.doi: 10.3866/PKU.WHXB19930219
• Note •
Gao Zi; Yue Ying-Hong; Li Wen-Jun
Studies on pervaporation separation of alcohol/water mixture and pervaporation-aided catalytic esterification reaction have been carried out using a laboratory reactor equipped with a hydrophilic polyvinyl alcohol membrane. It was found that the flux and the separation factor of the membrane varied with the composition and temperature of the alcohol/water mixture and the thickness of the membrane. On the other hand, the rate and conversion of the esterification reactions increased as the flux and the A/V ratio of the membrane were increased. The conversion of the pervaporation-aided esterification of acetic acid by ethanol approached 96—99% in our reaction device, and the time required to attain 95% conversion t_(95) reduced by half as compared with that of the blank reaction. For the pervaporation-aided esterification of salicylic acid by methanol, the reaction conversion increased by 1.5 times as well.
Polyvinyl alcohol pervaporation membrane,
Pervaporation aided catalytic esterification,
Esterification of acetic acid by ethanol,
Esterification of salicylic acid by methanol
Gao Zi; Yue Ying-Hong; Li Wen-Jun. Application of Pervaporation Membrane to Catalytic Esterification Reaction[J].Acta Phys. -Chim. Sin., 1993, 9(02): 242-246.
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