EP 0228940 B1 19900808 - PROCESS FOR EXTRACTING URANIUM AND/OR PLUTONIUM IV FROM AN AQUEOUS SOLUTION BY MEANS OF N,N-DIALKYLAMIDES
Title (en)
PROCESS FOR EXTRACTING URANIUM AND/OR PLUTONIUM IV FROM AN AQUEOUS SOLUTION BY MEANS OF N,N-DIALKYLAMIDES
Publication
Application
Priority
FR 8518015 A 19851205
Abstract (en)
[origin: US4772429A] 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: <IMAGE> (I) in which R1 is a straight or branched alkyl radical with 2 to 12 carbon atoms, R2 and R4, which can be the same or different, are straight or branched alkyl radicals with 2 to 6 carbon atoms, R3 and R5, 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.
IPC 1-7
IPC 8 full level
G21C 19/46 (2006.01); C01G 43/00 (2006.01); C01G 56/00 (2006.01); C22B 60/02 (2006.01)
CPC (source: EP US)
C22B 60/026 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0228940 A1 19870715; EP 0228940 B1 19900808; DE 3673370 D1 19900913; FR 2591213 A1 19870612; FR 2591213 B1 19880205; JP H06104573 B2 19941221; JP S62143827 A 19870627; US 4772429 A 19880920
DOCDB simple family (application)
EP 86402671 A 19861202; DE 3673370 T 19861202; FR 8518015 A 19851205; JP 28974586 A 19861204; US 93711386 A 19861202