A maghnite-clay-H/polymer membrane for separation of ethanol-water azeotrope

被引：23

作者：

Aouinti, L. ^{[1
]}

Belbachir, M. ^{[1
]}

机构：

[1] Univ Oran Essenia, Fac Sci, Dept Chim, Lab Chim Polymers, El MNouar 31000, Oran, Algeria

来源：

APPLIED CLAY SCIENCE | 2008年 / 39卷 / 1-2期

关键词：

poly (vinyl chloride) membrane; ethanol-water separation; composite membrane; pervaporation;

D O I：

10.1016/j.clay.2007.04.014

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Composite membranes, consisting of Maghnite-H (Magh-H) clay and poly (vinylchloride) were prepared. Membrane morphology was characterized by scanning electron microscopy and contact angle measurements. The pervaporation and separation characteristics of azeotropic ethanol-water mixtures through these membranes were investigated between 25 and 40 degrees C. The best results were obtained for 7 wt.% of Magh-H, and an increase in the flux and separation factor was noticed. Under ambient conditions, a separation factor (alpha H2O) of 25 and a flux of 11.9 g m(-2) h(-1) were obtained for 7% Magh-H content where, in absence of Magh-H the corresponding values were 5.82 and 2.31. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：78 / 85

页数：8

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[2]

BARTELS C, 1995, J MEMBRANE SCI, V70, P75

[3]

Belbachir M., 2001, US Patent, Patent No. [6,274,527B1, 6274527, 6, 274, 527 B1]

[4] Transport resistances during pervaporation through a composite membrane: Experiments and model calculations [J].