C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/205
C22B 60/02 (2006.01) C22B 60/00 (2006.01) G21F 9/06 (2006.01) G21F 9/10 (2006.01)
Patent
CA 1264559
ABSTRACT PROCESS FOR TREATING URANIFEROUS SOLUTIONS BY THE ADDITION OF AN ALUMINUM SALT ABSTRACT OF THE DISCLOSURE The invention relates to a process for decontaminating and adjusting the pH of uraniferous solutions to render them compatible with the natural environment into which they may be rejected. This process is characterised in that the solutions to be treated having a natural pH from about 2.5 to about 6.5 and containing from about 1 to about 100 mg/1 of uranium, are supplemented with an aluminum salt, such as sodium aluminate, in a sufficient amount for the final pH to be from about 5.5 to about 8.5 and for there to be precipitation, coagulation and adsorption of about 90% of the uranium initially contained in the solution and for the uranium content remaining in the final solution obtained to be equal or less than about 1.8 mg/1.
478044
Lyaudet Georges
Mouton Albert
Compagnie Generale Des Matieres Nucleaires
Goudreau Gage Dubuc
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