Compositions – Radioactive compositions
Patent
1986-12-02
1988-09-20
Miller, Edward A.
Compositions
Radioactive compositions
423 9, 252626, 252631, C01G 4300, C01G 5600
Patent
active
047724293
ABSTRACT:
The invention relates to a process for the extraction of uranium (VI) and/or plutonium (IV) present in an aqueous solution by means of N,N-dialkylamides.
These N,N-dialkylamides are in accordance with formula: ##STR1## in which R.sup.1 is a straight or branched alkyl radical with 2 to 12 carbon atoms, R.sup.2 and R.sup.4, which can be the same or different, are straight or branched alkyl radicals with 2 to 6 carbon atoms, R.sup.3 and R.sup.5, which can be the same or different, are straight or branched alkyl radicals with 1 to 6 carbon atoms and a and b, which can be the same or different, are integers between 1 and 6.
For example, it is possible to use N,N-di-(2-ethyl hexyl)-2,2-dimethyl butyramide, N,N-di-(2-ethyl hexyl)-hexanamide or N,N-di-(2-ethyl hexyl)-dodecanamide for simultaneously extracting uranium and plutonium, or for separating the uranium from the plutonium without reducing the latter.
REFERENCES:
patent: 4572802 (1986-02-01), Hubert et al.
patent: 4574072 (1986-03-01), Horwitz et al.
Gasparini et al., Sep. Sci. Technol., 15 (#4), 825-44 (1988).
Siddall et al., J. Inorg. Nucl. Chem., 29, pp. 149-158 (1967), Pergamon Press.
Descouls Nicole
Morisseau Jean-Claude
Musikas Claude
Commissariat a l''Energie Atomique
Miller Edward A.
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