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Title: Solution dewatering with concomitant ion removal

Abstract

One of the biggest needs in the separations and waste handling and reduction area is a method for dewatering ion-containing solutions. Unexpectedly, it has been found that phosphazene polymers can discriminate between water and metal ions, allowing water to pass through the membrane while retaining the ions. This unexpected result, along with the inherent chemical and thermal stability of the phosphazene polymers, yields a powerful tool for separating and dewatering metal-ion-containing solutions.

Inventors:
; ;
Issue Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174429
Patent Number(s):
6602418
Application Number:
09/766,985
Assignee:
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats

Peterson, Eric S., Marshall, Douglas W., and Stone, Mark L. Solution dewatering with concomitant ion removal. United States: N. p., 2003. Web.
Peterson, Eric S., Marshall, Douglas W., & Stone, Mark L. Solution dewatering with concomitant ion removal. United States.
Peterson, Eric S., Marshall, Douglas W., and Stone, Mark L. Tue . "Solution dewatering with concomitant ion removal". United States. https://www.osti.gov/servlets/purl/1174429.
@article{osti_1174429,
title = {Solution dewatering with concomitant ion removal},
author = {Peterson, Eric S. and Marshall, Douglas W. and Stone, Mark L.},
abstractNote = {One of the biggest needs in the separations and waste handling and reduction area is a method for dewatering ion-containing solutions. Unexpectedly, it has been found that phosphazene polymers can discriminate between water and metal ions, allowing water to pass through the membrane while retaining the ions. This unexpected result, along with the inherent chemical and thermal stability of the phosphazene polymers, yields a powerful tool for separating and dewatering metal-ion-containing solutions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}

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Works referenced in this record:

Separation of Cr ions from Co and mn ions by poly (bis(phenoxy) phosphazene) membranes
journal, September 1987