Chemical separations using shell and tube composite polyphophazene membranes

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399508010363· OSTI ID:88703

Peterson, E S; Stone, M L; Orme, C J ^[1]

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1. Idaho National Engineering Laboratory, Idaho Falls, ID (United States)

Several applications of modular shell and tube polyphosphazene coated membrane units are reported in this paper. These modules were used to measure the mixed-gas separation properties of poly(bis(phenoxy)phosphazene) based polymers on a larger scale. Transport behavior was determined using the variable volume technique. The test gas mixture was SO{sub 2}/N{sub 2} at temperatures between 80{degrees}C and 270{degrees}C. Transport of these gases was found to be a sorption controlled process. Several organic-aqueous and organic-organic separations have been performed using the polyphophazene coated shell and tube modules. The separations include: methylene chloride/water, acetic acid/water, isopropyl alcohol/water, glycerol/water, and hexane/soy oil. The membranes were prepared using slip casting techniques. The results of these studies show that polyphosphazene membranes can effectively be used to separate acid gases and organic chemicals from various waste streams in harsh, chemically aggressive environments.

• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 88703
• Report Number(s): CONF-931043--
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 7-9 Vol. 30; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
54 ENVIRONMENTAL SCIENCES
ACETIC ACID
ALCOHOLS
GLYCEROL
HEXANE
MEMBRANES
METHYLENE CHLORIDE
NITROGEN
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SOYBEAN OIL
SULFUR DIOXIDE
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
WATER