Reprocessing method of caramic nuclear fuels in low-melting nitr

Details Reprocessing method of caramic nuclear fuels in low-melting nitr Reprocessing method of caramic nuclear fuels in low-melting nitr

1973-04-24

1976-09-21

Padgett, Benjamin R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

2523011R, C01G 5600

Patent

active

039819604

ABSTRACT:
Ceramic nuclear fuel is reprocessed through a method wherein the fuel is dispersed in a molten eutectic mixture of at least two alkali metal nitrates and heated to a temperature in the range between 200.degree.C and 300.degree.C. That heated mixture is then subjected to the action of a gaseous stream containing nitric acid vapors, preferably in the presence of a catalyst such as sodium fluoride. Dissolved fuel can then be precipitated out of solution in crystalline form by cooling the solution to a temperature only slightly above the melting point of the bath.

REFERENCES:
patent: 3322509 (1967-05-01), Vogg
patent: 3708267 (1973-01-01), Avogadro et al.

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