Uranium dioxide process

Details Uranium dioxide process Uranium dioxide process

C - Chemistry, Metallurgy

01

G

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C01G 43/01 (2006.01) C01G 1/02 (2006.01) C01G 43/025 (2006.01)

Patent

CA 1059729

ABSTRACT OF THE DISCLOSURE Process for the preparation of fine particle size uranium dioxide from a uranium trioxide feed comprising the following steps: (a) reacting solid uranium trioxide with aqueous ammonium nitrate to form an insoluble ammonium uranate (b) neutralizing the thus formed slurry with ammonium hydroxide to precipitate out as an insoluble ammonium uranate the remaining dissolved uranium (c) recovering the thus formed precipitates in a dry state and (d) reducing the dried precipitate to uranium dioxide.

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