Process for the separation of certain elements from aqueous solu

Details Process for the separation of certain elements from aqueous solu Process for the separation of certain elements from aqueous solu

1993-03-03

1994-12-13

Walsh, Donald P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 49, C22B 6000

Patent

active

053727940

ABSTRACT:
The invention relates to a process for the separation of at least one element such as Nb, Sb, Ce+Pr, actinides and elements from groups VIIb and VIII of the Periodic Classification of Elements from aqueous solutions resulting from the reprocessing of spent nuclear fuels.
This process consists of contacting said aqueous solution with a solid resin based on a vinyl pyridine polymer or copolymer and separating from said solution the resin used for fixing said element or elements.
The resin is in particular a poly(vinyl-4-pyridine) powder in crosslinked from and the separated elements are e.g. ruthenium, rhodium, palladium, technetium, manganese, cobalt, iron, nickel, cerium and praseodymium.

REFERENCES:
patent: 3725261 (1973-04-01), Friedman
patent: 4197195 (1980-04-01), Ochsenfeld et al.
patent: 4663129 (1987-05-01), Atcher et al.
patent: 4818503 (1989-04-01), Nyman et al.
patent: 4971729 (1990-11-01), White
Frezenius Zeitscrift Fur Analytiche Chemie Springer Verlag 1968, Berlin, pp. 432-440, Friedrich Wolf, Rudiger Hauptmann und Dieter Warnecke, "Synthese Und Metallion-Selektivitat Von 4-Vinylpyridin/Acrylnitril Bzw. Acrylsaure/P-Divinylbenzol-Copolymeren".

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