EP 1469482 B1 20100324 - Process and product for radioactive decontamination
Title (en)
Process and product for radioactive decontamination
Title (de)
Verfahren und Produkt zur radioaktiven Dekontamination
Title (fr)
Procédé et produit de décontamination radioactive
Publication
Application
Priority
FR 0303884 A 20030328
Abstract (en)
[origin: EP1469482A1] A method for decontaminating surfaces with aqueous foam containing cerium(IV) involves mixing an acid aqueous solution of cerium(IV) with an aqueous solution of non-ionic surfactant in a foam generator just before application to the contaminated surface. A method for decontaminating articles with contaminated particles on the surface comprises: (a) making an acid aqueous solution of cerium(IV) with a pH of less than 3 (solution 1); (b) making an aqueous solution of non-ionic surfactant(s) which is/are oxidised by Ce(IV) (solution 2) and keeping this is a separate container from solution 1; (c) feeding a mixture of solutions 1 and 2 into a foam generator in the proportions required for the formation of foam by the action of the surfactant; and (d) flooding the surface of the article with the foam. An independent claim is also included for a decontamination product for use in the above application, containing solutions 1 and 2 in separate containers.
IPC 8 full level
G21F 9/30 (2006.01)
CPC (source: EP)
G21F 9/002 (2013.01); G21F 9/30 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1469482 A1 20041020; EP 1469482 B1 20100324; AT E462188 T1 20100415; DE 602004026135 D1 20100506; ES 2343459 T3 20100802; FR 2853129 A1 20041001; FR 2853129 B1 20050909
DOCDB simple family (application)
EP 04290825 A 20040329; AT 04290825 T 20040329; DE 602004026135 T 20040329; ES 04290825 T 20040329; FR 0303884 A 20030328