Recovery of uranium values

Details Recovery of uranium values Recovery of uranium values

C - Chemistry, Metallurgy

22

B

53/217

C22B 60/02 (2006.01)

Patent

CA 1115964

ABSTRACT OF DISCLOSURE A process and apparatus are described for stripping uranium values from a uranium-loaded organic extractant phase containing, usually, a tertiary amine capable of forming organic-soluble uranium complexes. The sulphate- containing aqueous strip liquor is fed in co-current with the extractant phase to be stripped through a number of mixing states in series conneeted one to another without intermediate settling stages and finally to a final settling stage. A "primary" dispersion is maintained in each mixing stage and controlled stepwise pH adjustment of the mixing stages is effected by metered addition of a base, such as ammonia.

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