SORPTION AND PERMEATION OF AQUEOUS PICOLINES IN ELASTOMERIC MEMBRANES

被引：18

作者：

NETKE, SA ^{[1
]}

SAWANT, SB ^{[1
]}

JOSHI, JB ^{[1
]}

PANGARKAR, VG ^{[1
]}

机构：

[1] UNIV BOMBAY,DEPT CHEM TECHNOL,BOMBAY 400019,INDIA

来源：

JOURNAL OF MEMBRANE SCIENCE | 1994年 / 91卷 / 1-2期

关键词：

PERVAPORATION; AQUEOUS PICOLINES; ELASTOMERIC MEMBRANES;

D O I：

10.1016/0376-7388(94)00036-0

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Separation of beta- and gamma-picolines from water using elastomeric membranes has been studied. PDMS and EPDM membranes were found to afford separation with good selectivity and flux over the entire concentration range. Natural rubber and nitrile-butadiene rubber membranes caused only a shift in the binary distillation azeotropic composition. Data from sorption and permeation studies were used to calculate the heat of sorption and activation energy for diffusion as a function of the picoline concentration. The activation energy for diffusion was found to decrease with increasing picoline concentration in agreement with the theory of plasticization.

引用

页码：163 / 171

页数：9

共 11 条

[1]

BLUME I, 1991, 5TH P INT C PERV PRO, P190

[2] PERVAPORATION OF LOW VOLATILITY AROMATICS FROM WATER [J].