C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/20 (2006.01) C22B 59/00 (2006.01) C22B 60/00 (2006.01) C22B 60/02 (2006.01) G21C 19/46 (2006.01)
Patent
CA 2090812
DESCRIPTIVE 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 form and the separated elements are e.g. ruthenium, rhodium, palladium, technetium, manganese, cobalt, iron, nickel, cerium and praseodymium. (No drawing) B. 11212 MDT
Chevillotte Rene
Chomel Rodolph
Draye Micheline
Foos Jacques
Guy Alain
Compagnie Generale Des Matieres Nucleaires
Goudreau Gage Dubuc
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