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Title: Bifunctional anion-exchange resins with improved selectivity and exchange kinetics

Abstract

Disclosed herein are a class of anion exchange resins containing two different exchange sites with improved selectivity and sorptive capability for chemical species in solution, such as heptavalent technetium as pertechnetate anion, TcO{sub 4}{sup {minus}}. The resins are prepared by first reacting haloalkylated crosslinked copolymer beads with a large tertiary amine in a solvent in which the resin beads can swell, followed by reaction with a second, smaller, tertiary amine to more fully complete the functionalization of the resin. The resins have enhanced selectivity, capacity, and exchange kinetics.

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
20050811
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 9 May 2000
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ION EXCHANGE MATERIALS; SORPTIVE PROPERTIES; TECHNETIUM OXIDES; SORPTION; CHEMICAL PREPARATION

Citation Formats

Alexandratos, S.D., Brown, G.M., Bonnesen, P.V., and Moyer, B.A. Bifunctional anion-exchange resins with improved selectivity and exchange kinetics. United States: N. p., 2000. Web.
Alexandratos, S.D., Brown, G.M., Bonnesen, P.V., & Moyer, B.A. Bifunctional anion-exchange resins with improved selectivity and exchange kinetics. United States.
Alexandratos, S.D., Brown, G.M., Bonnesen, P.V., and Moyer, B.A. Tue . "Bifunctional anion-exchange resins with improved selectivity and exchange kinetics". United States.
@article{osti_20050811,
title = {Bifunctional anion-exchange resins with improved selectivity and exchange kinetics},
author = {Alexandratos, S.D. and Brown, G.M. and Bonnesen, P.V. and Moyer, B.A.},
abstractNote = {Disclosed herein are a class of anion exchange resins containing two different exchange sites with improved selectivity and sorptive capability for chemical species in solution, such as heptavalent technetium as pertechnetate anion, TcO{sub 4}{sup {minus}}. The resins are prepared by first reacting haloalkylated crosslinked copolymer beads with a large tertiary amine in a solvent in which the resin beads can swell, followed by reaction with a second, smaller, tertiary amine to more fully complete the functionalization of the resin. The resins have enhanced selectivity, capacity, and exchange kinetics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {5}
}