物理化学学报 >> 1993, Vol. 9 >> Issue (02): 242-246.doi: 10.3866/PKU.WHXB19930219
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高滋; 乐英红; 李文俊
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Gao Zi; Yue Ying-Hong; Li Wen-Jun
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关键词: 聚乙烯醇渗透蒸发膜, 膜助催化酯化反应, 乙酸乙酯化反应, 水杨酸甲酯化反应
Abstract: 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.
Key words: Polyvinyl alcohol pervaporation membrane, Pervaporation aided catalytic esterification, Esterification of acetic acid by ethanol, Esterification of salicylic acid by methanol
高滋;乐英红;李文俊. 渗透蒸发膜应用于催化酯化反应的研究[J]. 物理化学学报, 1993, 9(02): 242-246.
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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http://www.whxb.pku.edu.cn/CN/Y1993/V9/I02/242
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