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:
-
- Aiken, SC
- Issue Date:
- Research Org.:
- E I DUPONT DE NEMOURS & CO INC
- OSTI Identifier:
- 864823
- Patent Number(s):
- 4423159
- 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 B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- 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. 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 = {1983},
month = {1}
}
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