Method for removal of plutonium impurity from americium oxides a

Details Method for removal of plutonium impurity from americium oxides a Method for removal of plutonium impurity from americium oxides a

1987-02-13

1987-12-01

Terapane, John F.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 841A, 20415748, 423 19, 423250, 423251, C22B 6002, C01G 5600

Patent

active

047102225

ABSTRACT:
Method for removal of plutonium impurity from americium oxides and fluorides. AmF.sub.4 is not further oxidized to AmF.sub.6 by the application of O.sub.2 F at room temperature, while plutonium compounds present in the americium sample are fluorinated to volatile PuF.sub.6, which can readily be separated therefrom, leaving the purified americium oxides and/or fluorides as the solid tetrafluoride.

REFERENCES:
patent: 3804939 (1974-04-01), Strickland et al.
patent: 4105746 (1978-08-01), Compton et al.
patent: 4434137 (1984-02-01), Stoll et al.
Chem. and Engin. NEWS, p. 16, Dec. 22, 1986.
Iu. V. Drobyshevskii, V. N. Prusakov, V. F. Serik and V. B. Sokolov, "Some Interaction Characteristics of the Compounds of Actinide Elements with Krypton Difluoride in Hydrogen Fluoride", Radiokhimiia, vol. 22, No. 4, 591-594, (1980), (Los Alamos National Laboratory Report LA-TR-81-11, translation dated Jun. 1981).

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