Dehydration of water-pyridine mixtures by pervaporation

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399108050517· OSTI ID:6026924

Kujawski, W ^[1]; Nguyen, T Q; Neel, J ^[2]

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1. N. Copernicus Univ., Torun (Poland) Centre National de la Recherche Scientifique-UA 494, Nancy (France)
2. Centre National de la Recherche Scientifique-UA 494, Nancy (France)

The pervaporation technique, in which the liquid feed mixture is maintained in contact with one side of a nonporous membrane and the permeate is continuously removed from the other side as a vapor, is one of the new methods to attain separation of azeotropic mixtures, structural isomers, or even to displace the equilibrium of chemical reactions. 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 water-pyridine mixtures could be used with standard distillation in the large-scale dehydration process of pyridine.

• OSTI ID: 6026924
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 26:8; ISSN SSTED; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AMMONIUM COMPOUNDS
AZEOTROPE
AZINES
BINARY MIXTURES
DATA
DEHYDRATION
DISPERSIONS
DISTILLATION
EVAPORATION
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
ION EXCHANGE MATERIALS
MANAGEMENT
MATERIALS
MATERIALS RECOVERY
MEMBRANE TRANSPORT
MEMBRANES
MIXTURES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PHASE TRANSFORMATIONS
PROCESSING
PYRIDINE
PYRIDINES
RECOVERY
SEPARATION PROCESSES
TESTING
WASTE MANAGEMENT
WASTE PROCESSING
WATER