Uranium dioxide preparation

Details Uranium dioxide preparation Uranium dioxide preparation

1975-05-21

1977-01-18

Miller, Edward A.

Chemistry of inorganic compounds

Radioactive

Uranium compound

2523011R, 2604291, 423 11, C01G 4302

Patent

active

040039803

ABSTRACT:
An actinide dioxide, e.g. uranium dioxide, is prepared by reacting an actinide nitrate or hydrate or tetrahydrofuranate thereof, e.g. uranyl nitrate, a hydrate of uranyl nitrate or a tetrahydrofuranate of uranyl nitrate with an alkali or alkaline earth metal adduct of a monocyclic or polycyclic hydrocarbon in the presence of an inert organic solvent. Typically, the starting material may be uranyl nitrate dihydrate or uranyl nitrate ditetrahydrofuranate (the latter material is a novel composition of matter) with a reactant such as the sodium adduct of naphthalene in the presence of a solvent such as tetrahydrofuran. The resultant uranium dioxide may be further purified by heating it in the presence of hydrogen.

REFERENCES:
patent: 3027391 (1962-03-01), Frigerio
patent: 3102848 (1963-09-01), Merlub-Sobel
patent: 3725293 (1973-04-01), Haas
patent: 3801701 (1974-04-01), Robins et al.
patent: 3816372 (1974-06-01), Lugli et al.

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