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Citation: Gao Zi, Yue Ying-Hong, Li Wen-Jun. Application of Pervaporation Membrane to Catalytic Esterification Reaction[J]. Acta Physico-Chimica Sinica, ;1993, 9(02): 242-246. doi: 10.3866/PKU.WHXB19930219 shu

Application of Pervaporation Membrane to Catalytic Esterification Reaction

1.
Department of Chemsitry, Fudan University, Shanghai 200433; Department of Material Science, Fudan University, Shanghai 200433

Received Date: 19 October 1991
Available Online: 15 April 1993

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
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