Compositions – Absorptive – or bindive – and chemically yieldive
Patent
1989-04-03
1990-05-08
Miller, Edward A.
Compositions
Absorptive, or bindive, and chemically yieldive
C09K 300
Patent
active
049236300
ABSTRACT:
An organic extracting solution 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:
patent: 4339416 (1982-07-01), Fitoussi et al.
patent: 4461747 (1984-07-01), Fitoussi et al.
patent: 4496523 (1985-01-01), Bonnin et al.
patent: 4572802 (1986-02-01), Hubert et al.
G. D. Jarvinen et al., Inorganica Chimica Acta, 129, (1987), pp. 139-148.
Jarvinen Gordon D.
Ryan Robert R.
Smith Barbara F.
Cordovano Richard J.
Gaetjens Paul D.
Miller Edward A.
Moser William R.
The United States of America as represented by the United States
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