Recovery of uranium from solutions

Details Recovery of uranium from solutions Recovery of uranium from solutions

C - Chemistry, Metallurgy

22

B

53/219

C22B 60/02 (2006.01) C01G 43/00 (2006.01)

Patent

CA 1263811

ABSTRACT OF THE DISCLOSURE For the recovery of uranium from a solution in which the uranium is in valence (VI), a solution is formed containing ammonium (NH4+), fluoride (F-) and sodium hydrosulfite (Na2S2O4). This forms a precipi- tate (NaNH4UF6), a previously unreported compound. It can be dissolved in an aqueous solution of aluminum nitrate nonahydrate, Al(NO3)3 ? 9h2O. This produces uranyl nitrate hexahydrate, which can be extracted in solutions conventionally used for that purpose.

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