Process for removing radioactive ruthenium from aqueous solution

Details Process for removing radioactive ruthenium from aqueous solution Process for removing radioactive ruthenium from aqueous solution

1989-02-22

1990-07-03

Locker, Howard J.

Compositions

Radioactive compositions

204 15, 210682, 210719, 210729, 210757, 210759, 210781, 252626, 252631, 423 22, G21C 1942, G21F 908, G21F 900, C02F 142

Patent

active

049388959

ABSTRACT:
The present invention relates to a process for removing radioactive ruthenium from an aqueous solution, comprising oxidizing the ruthenium in the aqueous solution of ruthenium tetroxide, extracting the resulting ruthenium tetroxide with a halogen-free aliphatic or alicyclic hydrocarbon solvent, allowing the ruthenium tetroxide to be reduced in the solvent, and separating the precipitated solid ruthenium dioxide.

REFERENCES:
patent: 4105442 (1978-08-01), Fieberg et al.
patent: 4282112 (1981-08-01), Fitoussi et al.
Analytica Chimica Acta, 183 (1986), Kenji Motojima et al. [Determination of Traces of Ruthenium by Addition of Cerium(IV) and Atomic Absorption Spectrometry], pp. 217-223.
Journal of Radioanalytical Chemistry, vol. 6 (1970), Y. Koda [Determination of Radioruthenium Using a Polyethylene Film], pp. 345-357.
Journal of Chemical Technique and Biotechnology, vol. 29, No. 4 (1979), pp. 210-224.
Journal of Inorganic and Nuclear Chemistry, vol. 43, pp. 385-390.

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