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Title: Phenolic cation exchange resin material for recovery of cesium and strontium

Abstract

A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of both cesium and strontium from aqueous alkaline solutions, such as, aqueous alkaline nuclear waste solutions. The organic resins are condensation polymers of resorcinol and formaldehyde with attached chelating groups. The column performance of the resins compares favorably with that of commercially available resins for either cesium or strontium removal. By combining Cs.sup.+ and Sr.sup.2+ removal in the same bed, the resins allow significant reduction of the size and complexity of facilities for processing nuclear waste.

Inventors:
 [1];  [1]
  1. (Aiken, SC)
Publication Date:
Research Org.:
E I DUPONT DE NEMOURS & CO INC
OSTI Identifier:
864823
Patent Number(s):
US 4423159
Assignee:
United States of America as represented by United States (Washington, DC) SRS
DOE Contract Number:  
AC09-76SR00001
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
phenolic; cation; exchange; resin; material; recovery; cesium; strontium; chelating; prepared; reacting; resorcinol; iminodiacetic; acid; presence; formaldehyde; molar; ratio; highly; selective; simultaneous; aqueous; alkaline; solutions; nuclear; waste; organic; resins; condensation; polymers; attached; column; performance; compares; favorably; commercially; available; removal; combining; cs; sr; bed; allow; significant; reduction; size; complexity; facilities; processing; aqueous alkaline; alkaline solutions; simultaneous recovery; aqueous alkali; acetic acid; significant reduction; molar ratio; cation exchange; exchange resin; waste solutions; nuclear waste; commercially available; waste solution; highly selective; alkaline solution; organic resin; iminodiacetic acid; phenolic cation; /521/

Citation Formats

Ebra, Martha A., and Wallace, Richard M. Phenolic cation exchange resin material for recovery of cesium and strontium. United States: N. p., 1983. Web.
Ebra, Martha A., & Wallace, Richard M. Phenolic cation exchange resin material for recovery of cesium and strontium. United States.
Ebra, Martha A., and Wallace, Richard M. Sat . "Phenolic cation exchange resin material for recovery of cesium and strontium". United States. doi:. https://www.osti.gov/servlets/purl/864823.
@article{osti_864823,
title = {Phenolic cation exchange resin material for recovery of cesium and strontium},
author = {Ebra, Martha A. and Wallace, Richard M.},
abstractNote = {A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of both cesium and strontium from aqueous alkaline solutions, such as, aqueous alkaline nuclear waste solutions. The organic resins are condensation polymers of resorcinol and formaldehyde with attached chelating groups. The column performance of the resins compares favorably with that of commercially available resins for either cesium or strontium removal. By combining Cs.sup.+ and Sr.sup.2+ removal in the same bed, the resins allow significant reduction of the size and complexity of facilities for processing nuclear waste.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}

Patent:

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