FACILITATION EFFECT OF MODIFIED PVA MEMBRANES ON ESTERIFICATION BY PERVAPORATION

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (2): 112-114.

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FACILITATION EFFECT OF MODIFIED PVA MEMBRANES ON ESTERIFICATION BY PERVAPORATION

Liu Futian, Yu Xianda, Cao Suqin

Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000 Lanzhou

Received:1992-04-09 Revised:1992-09-27 Published:1993-04-10 Online:1993-04-10

Abstract

Abstract: The sulfonated styrene-vinyl alcohol block copolymers were synthesized. The effects of the moditfied PVA membranes on the esterification of n-butanol and acetic acid were investigated. The PVA membranes were prepared from PVA, cross-linked with, decanal and Cr(Ⅲ), and heat treated PVA. The composite membrane was prepared by supporting the sulfonated styrene-vinyl alcohol copolymer on the heat-treated PVA membrane and assembled into a single reactor. The modified PVA membranes had the ability to facilitate the esterification reaction and the reactor with assembled membrane showed both the catalytic activity and facility for esterifieation.

Key words: pervaporation membrane, butanol, acetic acid, esterification, sulfonated styrene-vinyl alcohol copolymer

Liu Futian, Yu Xianda, Cao Suqin. FACILITATION EFFECT OF MODIFIED PVA MEMBRANES ON ESTERIFICATION BY PERVAPORATION[J]. Chinese Journal of Applied Chemistry, 1993, 0(2): 112-114.

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FACILITATION EFFECT OF MODIFIED PVA MEMBRANES ON ESTERIFICATION BY PERVAPORATION

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