Pervaporation of phenols
Aqueous phenolic solutions are separated by pervaporation to yield a phenol-depleted retentate and a phenol-enriched permeate. The separation effect is enhanced by phase segregation into two immiscible phases, phenol in water'' (approximately 10% phenol), and water in phenol'' (approximately 70% phenol). Membranes capable of enriching phenols by pervaporation include elastomeric polymers and anion exchange membranes, membrane selection and process design being guided by pervaporation performance and chemical stability towards phenolic solutions. Single- and multiple-stage processes are disclosed, both for the enrichment of phenols and for purification of water from phenolic contamination. 8 figs.
- Research Organization:
- Bend Research Inc
- DOE Contract Number:
- AC03-83ER80034
- Assignee:
- Bend Research, Inc., OR (United States)
- Patent Number(s):
- A; US 4806245
- Application Number:
- PPN: US 7-175683
- OSTI ID:
- 7022003
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
AQUEOUS SOLUTIONS
AROMATICS
DESIGN
DISPERSIONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUID WASTES
MEMBRANE TRANSPORT
MEMBRANES
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
SOLUTIONS
WASTE WATER
WASTES
WATER
WATER TREATMENT