Salt-Occluded Zeolites as an Immobilization Matrix for Chloride Waste Salt

Autor:	Donald F. Fischer, Michele A. Lewis, Londa J. Smith
Rok vydání:	1993
Předmět:	Ion exchange Chemistry Halide Radioactive waste Chloride Waste treatment Chemical engineering Materials Chemistry Ceramics and Composites medicine Leaching (metallurgy) Zeolite Energy source medicine.drug Nuclear chemistry
Zdroj:	Journal of the American Ceramic Society. 76:2826-2832
ISSN:	1551-2916 0002-7820
DOI:	10.1111/j.1151-2916.1993.tb04023.x
Popis:	The pyrometallurgical processing of spent fuel from the integral fast reactor (IFR), an advanced reactor under development at Argonne National Laboratory, will generate a chloride salt waste containing the alkali-metal, alkaline-earth, and some of the rare-earth fission products. Salt-occluded zeolite A, formed by equilibrating simulated molten waste salt and zeolite A, has been investigated as an immobilization matrix for this salt waste. In this concept, the chloride waste salt is loaded into the zeolite cavities, and cesium and strontium from the salt are preferentially sorbed by the zeolite. Experiments showed that the salt occluded zeolite powders are leach resistant and radiation stable. The conclusion is that the salt-occluded zeolite is a promising immobilization matrix for the IFR waste salt.
Databáze:	OpenAIRE
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