(19)
(11) EP 0 242 890 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.05.1989 Bulletin 1989/20

(43) Date of publication A2:
28.10.1987 Bulletin 1987/44

(21) Application number: 87200213.4

(22) Date of filing: 11.02.1987
(51) International Patent Classification (IPC)4G21F 9/36, G21F 5/00
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR LI LU NL SE

(30) Priority: 26.02.1986 IT 1955086

(71) Applicant: ENIRICERCHE S.p.A.
I-20121 Milan (IT)

(72) Inventor:
  • De Angelis, Bernardo
    I-00171 Roma (IT)

(74) Representative: Roggero, Sergio (IT) et al
Ing. Barzanò & Zanardo S.p.A. Via Borgonuovo 10
I-20121 Milano
I-20121 Milano (IT)


(56) References cited: : 
   
       


    (54) Barrier against the release of radionuclides from vitrified radioactive wastes and process for accomplishing it


    (57) Barrier against the release of radionuclides from vitrified radioactive wastes, constituted by Al, Ti, Zr oxides, and process for the application thereof inside the metal containers used for the storage of the radioac­tive wastes immobilized inside glass matrices.





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