Process for purifying rare-earth compositions using fractional s

Details Process for purifying rare-earth compositions using fractional s Process for purifying rare-earth compositions using fractional s

1979-01-25

1981-05-05

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Rare earth metal

423 2, 423 3, 423 11, 423 14, C01F 1700

Patent

active

042658624

ABSTRACT:
A process is disclosed for purifying a composition comprising at least one rare-earth element. The process is useful for removing radioactive impurities from these elements. The process comprises the steps of:

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Curie, J. Chim. Phys., 27, pp. 1-8 (1930).
McLane et al., "The Transuranium Elements", National Nuclear Energy Series, vol. 14B (1949) pp. 1371-1380.
Korkisch, "Modern Methods for the Separation of Rarer Metal Ions", pp. 189, 192, Pergamon Press (1969) Oxford.
Bailar et al., "Comprehensive Inorganic Chemistry", 4, pp. 46-58 & 66-67; & 5, pp. 9-10, 75, 276, Pergamon Press (1973) Oxford.

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