Recovery of uranium from solutions

Details Recovery of uranium from solutions Recovery of uranium from solutions

1984-10-29

1987-05-26

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423253, C01G 4300

Patent

active

046684824

ABSTRACT:
For the recovery of uranium from a solution in which the uranium is in valence (VI), a solution is formed containing ammonium (NH.sub.4.sup.+), fluoride (F.sup.-) and sodium hydrosulfite (Na.sub.2 S.sub.2 O.sub.4). This forms a precipitate (NaNH.sub.4 UF.sub.6), a previously unreported compound. It can be dissolved in an aqueous solution of nitric acid, aluminum nitrate nonahydrate, Al(NO.sub.3).sub.3.9H.sub.2 O, or a mixture of the two. This produces uranyl nitrate hexahydrate, which can be purified by processes conventionally used for that purpose.

REFERENCES:
patent: 2768059 (1956-10-01), Bailer et al.
patent: 3681035 (1972-08-01), Selman et al.
patent: 3980757 (1976-09-01), Dokuzoguz
patent: 4211757 (1980-07-01), Watt et al.

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