Process for the recovery of uranium from wet-process...

Details Process for the recovery of uranium from wet-process... Process for the recovery of uranium from wet-process...

C - Chemistry, Metallurgy

22

B

53/218

C22B 60/02 (2006.01)

Patent

CA 1106616

ABSTRACT Process for the recovery of uranium from a wet-process phosphoric acid according to which the preliminarily oxidized acid is treated first with an organic solvent consisting of a dialkylphosphoric acid and a trialkylphosphine oxide dissolved in an inert solvent in order to obtain uranium-free phosphoric acid and an organic extract consisting of the solvent containing uranium which is separated as ammonium uranyl tricarbonate by treating the organic extract in a reextraction apparatus having at least two stages, with ammonium hydroxide solution and ammonium carbonate solution introduced separately in the extreme stages, the organic solvent being regenerated by treatment with an acid before recycling it.

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