Method for treating hydrated green salt

Chemistry of inorganic compounds – Radioactive – Uranium compound

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264 05, C01G 4306, G21C 2100

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052386678

ABSTRACT:
A method of producing a high density, low hygroscopic green salt from hydrated green salt includes heating a charge of hydrated green salt in a nonreactive atmosphere to a first temperature above the boiling point of water to drive off free water; heating the charge in a nonreactive atmosphere to a second temperature higher than the first temperature to drive off the water of crystallization present in the green salt; heating the charge in a nonreactive atmosphere to a third temperature higher than the second temperature to induce anhygroscopicity of the charge; and cooling the charge to approximately 400.degree. F. or less in a protective atmosphere to prevent atmospheric oxidation and hydrolysis.

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patent: 3985551 (1976-10-01), Powell et al.
Katz, J. J., Seaborg, G. T. and Moss, L. R., The Chemistry of the Actinide Elements, vol. 1, 2nd Edition, Chapman Hall (1986) p. 304.
Katz, J. J. and Rabinowitch, E., The Chemistry of Uranium, Port I., N.Y. McGraw-Hill, 1951, p. 360.
Crump, W. A. and Kennely, J. A., "Conversion of Scrap Metal to pure UF4 by Aqueous Methods" Mallinckrodt Chemical Works, MCW 1407, 1957.

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