Method for extraction of metals by methyliminobisalkylacetamide

Details Method for extraction of metals by methyliminobisalkylacetamide Method for extraction of metals by methyliminobisalkylacetamide

2011-06-28

2011-06-28

Bos, Steven (Department: 1736)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

C423S022000, C423S049000, C423S054000, C210S634000, C210S656000, C210S679000, C588S020000, C588S313000, C588S410000, C588S414000

Reexamination Certificate

active

07968064

ABSTRACT:
The present invention provides a method for extraction of metals selected from Cr, Mo, Pd, Tc, W, Re, and Pu using a new extractant of methyliminobisalkylacetamide represented by a formula (I):in-line-formulae description="In-line Formulae" end="lead"?CH3—N—(CH2CONR2)2  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R represents an alkyl group having 8-12 carbon atoms.

REFERENCES:
patent: 2009-114129 (2009-05-01), None
“Comparative Synergistic (Technetium-Actinide) Extraction Chemistry by Tributylphosphate and Some Amide Extractants,” Condamines et al., CEA-CON—11456 (1993), 8 pages.
“Solvent Extraction of Tc(VII) and Re(VII) from Nitric Acid Solution with the Mixture of CMPO and TBP,” Takeuchi et al., Radiochimica Acta 63, 1993, pp. 97-100.
“Highly Selective Extraction of Tc04-, ReO42-, and MoO42- by the New Ligand, 2,2′- (Methylimino)bis(N,N-Dioctylacetamide) (MIDOA),” Sasaki et al., Chemistry Letters vol. 36, No. 11, 2007, pp. 1394-1395.

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