Glass and ceramic materials for the immobilization of megacurie- amounts of pure cesium-137. [In glass, glass-ceramics, zeolite, and pollucite]
Megacurie-amounts of radioactive cesium (/sup 137/Cs and /sup 134/Cs) can be satisfactorily incorporated in a variety of ceramic forms including glass, glass-ceramics, cesium-loaded zeolites, and the mineral pollucite. Glasses which contain up to 45 percent Cs/sub 2/O can be prepared having leach rates in distilled water at 25/sup 0/C in the range 2 x 10/sup -5/ to 3 x 10/sup -3/ g Cs/cm/sup 2//day. Attempts to produce glass ceramics containing pollucite failed to yield a glass that crystallized but did yield several satisfactory glasses. Leach rates of fully loaded zeolites containing 23 percent Cs/sub 2/O decreased from 10/sup -4/ g Cs/cm/sup 2//day to 3 x 10/sup -6/ g Cs/cm/sup 2//day as the firing temperature was increased from 500 to 1100/sup 0/C. Aqueous solutions of cesium chloride mixed with bentonite clay react when dried and fired at 750 to 1000/sup 0/C to form pollucite. A 79 percent yield was found at 1000/sup 0/C. (auth)
- Research Organization:
- Atlantic Richfield Hanford Co., Richland, Wash. (USA)
- DOE Contract Number:
- E(45-1)-2130
- OSTI ID:
- 7274832
- Report Number(s):
- ARH-SA-246; CONF-760532-4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM 137
CESIUM COMPOUNDS
CESIUM ISOTOPES
CESIUM OXIDES
CHALCOGENIDES
DISSOLUTION
GLASS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTOPES
LEACHING
MANAGEMENT
MINERALS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
SEPARATION PROCESSES
SOLIDIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
YEARS LIVING RADIOISOTOPES
ZEOLITES