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Method for calcining nuclear waste solutions containing zirconium and halides

Patent ·
OSTI ID:5267437

A reduction in the quantity of gelatinous solids which are formed in aqueous zirconium-fluoride nuclear reprocessing waste solutions by calcium nitrate added to suppress halide volatility during calcination of the solution while further suppressing chloride volatility is achieved by increasing the aluminum to fluoride mole ratio in the waste solution prior to adding the calcium nitrate.

Assignee:
Dept. of Energy
Patent Number(s):
US 4164479
OSTI ID:
5267437
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CALCINATION
CALCIUM COMPOUNDS
CALCIUM NITRATES
CHEMICAL REACTIONS
DECOMPOSITION
FLUORINE COMPOUNDS
HALOGEN COMPOUNDS
MANAGEMENT
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PROCESSING
PYROLYSIS
RADIOACTIVE WASTE PROCESSING
SOLIDIFICATION
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
ZIRCONIUM COMPOUNDS