(19)
(11) EP 0 296 855 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.12.1989 Bulletin 1989/49

(43) Date of publication A2:
28.12.1988 Bulletin 1988/52

(21) Application number: 88305733.3

(22) Date of filing: 23.06.1988
(51) International Patent Classification (IPC)4: G21F 5/00, G21F 9/36
(84) Designated Contracting States:
CH DE LI SE

(30) Priority: 23.06.1987 US 65803

(71) Applicant: AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION
Lucas Heights New South Wales 2234 (AU)

(72) Inventor:
  • Ramm, Eric John
    Lilli Pilli New South Wales, 2229 (AU)

(74) Representative: Ben-Nathan, Laurence Albert et al
Urquhart-Dykes & Lord 91 Wimpole Street
London W1M 8AH
London W1M 8AH (GB)


(56) References cited: : 
   
       


    (54) A method of storing radioactive waste material


    (57) In the illustrated embodiment, a non-deformable inner vessel 60 retains safely radioactive waste and a suitable dense metal sheath is formed around the inner vessel 60 at relatively low temperatures and pressures and, most importantly, the melting point of the material forming the sheath 74 is substantially lower than the melting point of the inner vessel 60 or the outer vessel 70 so that the sheath 74 can be removed in a suitable furnace thereby permitting retrieval of the inner vessel 60 and the waste for reprocessing.







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