Pervaporation of phenols

Patent · Sun Jan 01 00:00:00 EST 1989

OSTI ID:866850

Boddeker, Karl W ^[1]

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1. Breitenfelde, DE

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 procresses are disclosed, both for the enrichment of phenols and for purification of water from phenolic contamination.

• Research Organization: Bend Research Inc
• DOE Contract Number: AC03-83ER80034
• Assignee: Bend Research, Inc. (Bend, OR)
• Patent Number(s): US 4806245
• OSTI ID: 866850
• Country of Publication: United States
• Language: English

Related Subjects

pervaporation
phenols
aqueous
phenolic
solutions
separated
yield
phenol-depleted
retentate
phenol-enriched
permeate
separation
effect
enhanced
phase
segregation
immiscible
phases
phenol
water
approximately
10
70
membranes
capable
enriching
elastomeric
polymers
anion
exchange
membrane
selection
process
design
guided
performance
chemical
stability
towards
single-
multiple-stage
procresses
disclosed
enrichment
purification
contamination
chemical stability
anion exchange
exchange membrane
exchange membranes
membranes capable
process design
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