Pervaporation separation of ethanol-water mixtures using polyacrylic acid composite membranes
Patent
·
OSTI ID:5597429
Synthetic, organic, polymeric membranes were prepared from polyacrylic acid salts for use with pervaporation apparatus in the separation of ehthanol-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-diisocyanata solution, after which the prepared membrane was heat-cured. The resulting membrane structure showed selectivity in permeating water over a wide range of feed concentrations. 4 tabs.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- Dept. of Energy
- Patent Number(s):
- None
- Application Number:
- ON: DE86013714
- OSTI ID:
- 5597429
- Country of Publication:
- United States
- Language:
- English
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