Separation of actinides from lanthanides

Details Separation of actinides from lanthanides Separation of actinides from lanthanides

1988-03-31

1989-09-19

Hunt, Brooks H.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 10, 423 8, 423 215, 534 15, 534 16, C01F 1700, C07F 500, C01G 5600, B01D 1100

Patent

active

048679518

ABSTRACT:
An organic extracting solution and an extraction method useful for separating elements of the actinide series of the periodic table from elements of the lanthanide series, where both are in trivalent form. The extracting solution consists of a primary ligand and a secondary ligand, preferably in an organic solvent. The primary ligand is a substituted monothio-1,3-dicarbonyl, which includes a substituted 4-acyl-2-pyrazolin-5-thione, such as 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT). The secondary ligand is a substituted phosphine oxide, such as trioctylphosphine oxide (TOPO).

REFERENCES:
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patent: 4461747 (1984-07-01), Fitoussi et al.
patent: 4496523 (1985-01-01), Bonnin et al.
patent: 4572802 (1986-02-01), Hubert et al.

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