Method of quantitatively separating uranium from specimens of na

Details Method of quantitatively separating uranium from specimens of na Method of quantitatively separating uranium from specimens of na

1978-05-05

1981-08-11

Schafer, Richard E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

210684, C22B 6002, C02B 128

Patent

active

042833701

ABSTRACT:
A method of quantitatively separating uranium from specimens of natural water, especially sea water or from solutions which as to their composition are comparable to such specimens, while silica gel is provided for adsorbing the uranium. The liquid of the specimens or solution is conveyed over granular silica gel having an average grain diameter not exceeding 0.5 mm. The through-flow speed is so selected that the contact time period for the liquid with the silica gel amounts to at least 50 seconds, whereupon the uranium adsorbed on the silica gel is separated therefrom by elutriation with at least 0.1 normal oxidizing mineral acid. The volume of the elutriate utilized, should amount to at least twice the volume of the silica gel, and this proportion of the elutriate should, if possible, not be exceeded.

REFERENCES:
patent: 2885258 (1959-05-01), Bain
patent: 2966393 (1960-12-01), Kember
Zaki, Z., Anorg. Allg. Chem., j360; 208-212, "Studies on the Uptake of Urum (VI) on Silica Gel," 1968.
Sulcek et al., Analytica Chemica Acta, "The Use of Silica Gel for the Separation of Traces of Uranium," 1970, pp. 335-344.
French et al., Transactions of the Faraday Society, "The Magnetochemistry of Adsorption of Ions from Solution," 1956, pp. 996-998.

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