Method for selective separation of trivalent and tetravalent...

Details Method for selective separation of trivalent and tetravalent... Method for selective separation of trivalent and tetravalent...

2007-12-26

2011-11-08

Bos, Steven (Department: 1736)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

C423S021500

Reexamination Certificate

active

08052947

ABSTRACT:
A method for separating and recovering trivalent and tetravalent actinoids in a simple and less costly manner without using an organophosphorus compound is provided. This method selectively separates and recovers the tetravalent actinoid plutonium Pu (IV) and the trivalent actinoids americium Am (III) and curium Cm (III) from trivalent lanthanoids Ln (III), etc. with the use of an extractant having a functional group with neutral multidentate ligand activity which is a hybrid donor type organic compound having both of donor atoms, i.e., an oxygen atom and a nitrogen atom.

REFERENCES:
patent: 2002-243890 (2002-08-01), None
patent: 2005-214706 (2005-08-01), None
International Search Report for PCT/JP2007/074950, mailed Apr. 15, 2008.
Masahiko Numakura, “XAFS to shigai Kashi Kyushu Hiraki Spectrum ni yoru Alcohol Yoeikichu deno Lanthanoid-1,10-phenanthroline Sakutai no Kozo Kaisekil”, CSJ: The Chemical Society of Japan Koen Yokoshu, Mar. 2006, Dai 86 Kai, p. 353.
Tsuyoshi Yaita, “Kyomei X-sen Hakko Bunko Bunseki ni yoru Cm Kagobutsu no Denshi Jotai”, Hosha Kaguka Toronakai Koen Yokoshu, Oct. 2006, Dai 50, Kai, p. 72.

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