Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes
Abstract
A method is provided for separating halogenated hydrocarbons from a fluid feedstream. The fluid feedstream is flowed across a first surface of a polyphosphazene semipermeable membrane. At least one halogenated hydrocarbon from the fluid feedstream permeates through the polyphosphazene semipermeable membrane to a second opposed surface of the semipermeable membrane. Then the permeated polar hydrocarbon is removed from the second opposed surface of the polyphosphazene semipermeable membrane. Outstanding and unexpected separation selectivities on the order of 10,000 were obtained for methylene chloride when a methylene chloride in water feedstream was flowed across the polyphosphazene semipermeable membrane in the invented method.
- Inventors:
-
- Milford, MA
- Idaho Falls, ID
- Issue Date:
- Research Org.:
- EG & G IDAHO INC
- OSTI Identifier:
- 867863
- Patent Number(s):
- 5022996
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- AC07-76ID01570
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; separating; organic; contaminants; fluid; feedstreams; polyphosphazene; membranes; provided; halogenated; hydrocarbons; feedstream; flowed; surface; semipermeable; membrane; hydrocarbon; permeates; opposed; permeated; polar; removed; outstanding; unexpected; separation; selectivities; 10; 000; obtained; methylene; chloride; water; invented; polyphosphazene semipermeable; semipermeable membrane; halogenated hydrocarbons; permeable membrane; organic contaminant; organic contaminants; halogenated hydrocarbon; methylene chloride; opposed surface; separating organic; fluid feedstream; /210/
Citation Formats
McCaffrey, Robert R, and Cummings, Daniel G. Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes. United States: N. p., 1991.
Web.
McCaffrey, Robert R, & Cummings, Daniel G. Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes. United States.
McCaffrey, Robert R, and Cummings, Daniel G. Tue .
"Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes". United States. https://www.osti.gov/servlets/purl/867863.
@article{osti_867863,
title = {Method of separating organic contaminants from fluid feedstreams with polyphosphazene membranes},
author = {McCaffrey, Robert R and Cummings, Daniel G},
abstractNote = {A method is provided for separating halogenated hydrocarbons from a fluid feedstream. The fluid feedstream is flowed across a first surface of a polyphosphazene semipermeable membrane. At least one halogenated hydrocarbon from the fluid feedstream permeates through the polyphosphazene semipermeable membrane to a second opposed surface of the semipermeable membrane. Then the permeated polar hydrocarbon is removed from the second opposed surface of the polyphosphazene semipermeable membrane. Outstanding and unexpected separation selectivities on the order of 10,000 were obtained for methylene chloride when a methylene chloride in water feedstream was flowed across the polyphosphazene semipermeable membrane in the invented method.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}