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Title: Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes

Abstract

Synthetic, organic, polymeric membranes were prepared from polyethylenimine for use with pervaporation apparatus in the separation of ethanol-water mixtures. The polymeric material was prepared in dilute aqueous solution and coated onto a polysulfone support film, from which excess polymeric material was subsequently removed. Cross-links were then generated by limited exposure to toluene-2,4-diisocyanate solution, after which the prepared membrane was heat-cured. The resulting membrane structures showed high selectivity in permeating ethanol or water over a wide range of feed concentrations. 2 tabs.

Inventors:
; ;
Publication Date:
Research Org.:
Solar Energy Research Inst., Golden, CO (USA)
OSTI Identifier:
5541128
Application Number:
ON: DE86013738
Assignee:
Dept. of Energy TIC; ERA-11-004013; EDB-86-134665
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; ETHANOL; WATER REMOVAL; IMINES; MEMBRANES; FRACTIONATION; PERMEABILITY; SEPARATION PROCESSES; ULTRAFILTRATION; ALCOHOLS; FILTRATION; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; REMOVAL; 090221* - Alcohol Fuels- Chemical Synthesis- (1976-1989)

Citation Formats

Neidlinger, H.H., Schissel, P.O., and Orth, R.A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes. United States: N. p., 1985. Web.
Neidlinger, H.H., Schissel, P.O., & Orth, R.A. Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes. United States.
Neidlinger, H.H., Schissel, P.O., and Orth, R.A. Wed . "Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes". United States.
@article{osti_5541128,
title = {Pervaporation separation of ethanol-water mixtures using polyethylenimine composite membranes},
author = {Neidlinger, H.H. and Schissel, P.O. and Orth, R.A.},
abstractNote = {Synthetic, organic, polymeric membranes were prepared from polyethylenimine for use with pervaporation apparatus in the separation of ethanol-water mixtures. The polymeric material was prepared in dilute aqueous solution and coated onto a polysulfone support film, from which excess polymeric material was subsequently removed. Cross-links were then generated by limited exposure to toluene-2,4-diisocyanate solution, after which the prepared membrane was heat-cured. The resulting membrane structures showed high selectivity in permeating ethanol or water over a wide range of feed concentrations. 2 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {6}
}