Dehydration of Water-Pyridine Mixtures by Pervaporation
- 1 August 1991
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 26 (8) , 1109-1121
- https://doi.org/10.1080/01496399108050517
Abstract
Several ion-exchange and neutral membranes were examined in the pervaporation of water-pyridine mixtures. Carboxylic and sulfonic ion-exchange membranes were used with hydrogen counterion and additionally with trimethylammonium, triethylammonium, and tributylammonium counterions. All membranes were selective to water, but the transport mode and selectivity properties of membranes were dependent on both the character of the ion-exchange group and the ionic form of the membrane. The results obtained suggest that pervaporation of waterpyridine mixtures could be used with standard distillation in the large-scale dehydration process of pyridine.Keywords
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