Dehydration of acetic acid by pervaporation

被引：74

作者：

Ray, SK ^{[1
]}

Sawant, SB ^{[1
]}

Joshi, JB ^{[1
]}

Pangarkar, VG ^{[1
]}

机构：

[1] Univ Bombay, Dept Chem Technol, Bombay 400019, Maharashtra, India

来源：

JOURNAL OF MEMBRANE SCIENCE | 1998年 / 138卷 / 01期

关键词：

acrylonitrile; copolymers; polyimide; acetic acid; dehydration;

D O I：

10.1016/S0376-7388(97)00210-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Pervaporative dehydration of acetic acid over the entire concentration range of 0-100% is studied using four copolymer membranes of acrylonitrile and high performance Nafion and polyimide membranes. From each copolymer of acrylonitrile, three different membranes were produced with three different copolymer compositions. Polyimide showed high water selectivity but very low flux, while Nafion showed highest flux but lowest selectivity. Copolymers of acrylonitriles showed reasonable flux and selectivity behavior. Among the acrylonitrile copolymers, copolymers with hydroxyethyl methylacrylate yielded water selectivity comparable to that of polyimide with much higher flux. (C) 1998 Elsevier Science B.V.

引用

页码：1 / 17

页数：17

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