Separation process for the recovery of uranium from...

Details Separation process for the recovery of uranium from... Separation process for the recovery of uranium from...

C - Chemistry, Metallurgy

22

B

53/218

C22B 60/02 (2006.01)

Patent

CA 1154268

ABSTRACT A synergistic extractant combination consisting of di(2-ethylhexyl) phosphoric acid (D2EHPA) and dibutyl butyl phosphonate (DBBP) in kerosene is employed in a two-cycle separation process for the recovery of uranium from wet-process phosphoric acid. The addition of the sulfuric acid and water scrubbing steps for the recycled extractant produces no problems to the contamination and dilution by the ammonium ion and water to the phos- phoric acid and also no precipitation occurs in the second cycle extraction step. The advantages of this process are lower chemical cost, higher product purity and better phase separation in comparison with the previous process.

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