METHOD OF PROCESSING URANIUM-CONTAINING COMPOSITION Russian patent published in 2009 - IPC C01G43/01 

FIELD: chemistry.

SUBSTANCE: processed are radioactive wastes of fuel compositions, containing uranium dioxide and polyethylene, obtaining marketable uranium protoxide-oxide, used for nuclear fuel breeding. Uranium-containing composition, consisting of uranium dioxide and polyethylene, is subjected to thermal processing in hydrogen passage during 0.5-2 hours at temperature 500-700°C with rate of heating 2-10°C/min, and separated in the process uranium-containing constituent of composition is subjected to re-processing in air at temperature 500-800°C during 2-5 hours in presence of oxidant in amount constituting 1-5 wt % from weight of uranium-containing constituent of composition.

EFFECT: improved method of processing of uranium-containing composition.

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