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EP0146778B1 - Récipient de stockage final de déchets radioactifs - Google Patents

Récipient de stockage final de déchets radioactifs Download PDF

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Publication number
EP0146778B1
EP0146778B1 EP84113941A EP84113941A EP0146778B1 EP 0146778 B1 EP0146778 B1 EP 0146778B1 EP 84113941 A EP84113941 A EP 84113941A EP 84113941 A EP84113941 A EP 84113941A EP 0146778 B1 EP0146778 B1 EP 0146778B1
Authority
EP
European Patent Office
Prior art keywords
uranium
weight
container
radioactive waste
nickel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84113941A
Other languages
German (de)
English (en)
Other versions
EP0146778A3 (en
EP0146778A2 (fr
Inventor
Paul Arntzen
Hans Dipl.-Ing. Pirk
Horst Dr. Dipl.-Chem. Vietzke
Hans Dr. Wingender
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nukem GmbH
Original Assignee
Nukem GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nukem GmbH filed Critical Nukem GmbH
Publication of EP0146778A2 publication Critical patent/EP0146778A2/fr
Publication of EP0146778A3 publication Critical patent/EP0146778A3/de
Application granted granted Critical
Publication of EP0146778B1 publication Critical patent/EP0146778B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal

Definitions

  • the invention relates to a container for the final storage of radioactive waste with uranium as radiation protection material within the container walls.
  • Containers for radioactive material which contain uranium as radiation protection material between an inner and outer shell of the container body, in the shielding lid and on the container bottom, are known for example from DE-A-2 304 665.
  • the uranium castings used for this purpose in the form of depleted material must always be encapsulated in another material, since they are not resistant to oxidation and corrosion.
  • uranium is also anisotropic in its properties and therefore expands to different extents when heated in three dimensions, in contrast to the usual encapsulation materials such as B. steel, there can be warps when filling the container with strong heat-emitting radioactive substances or during the prescribed fire test (30 minutes at 800 ° C), which damage the container.
  • uranium alloys with 5 to 15% by weight of molybdenum and / or 2 to 15% by weight of copper and / or 1 to 5% by weight of zirconium and / or 0.5 to 5 as the radiation protection material %
  • chromium and / or 0.5 to 2% by weight of nickel and / or 0.5 to 1.5% by weight of niobium and / or 0 to 5% by weight of iron the rest uranium, can be used , the total content of the alloying metals 10 to 16 wt .-% and the addition of chromium and / or nickel and / or niobium must be at least 1.5 wt .-%.
  • These alloys have a much higher corrosion resistance than the pure uranium metal and known uranium alloys, so that they can be used directly as container and radiation protection material, with only thin sheets of 1 to 2 mm to retain the alpha and beta radiation emanating from the core and no thick-walled encapsulations or steel jackets are required. In addition, these alloys show practically no anisotropy with regard to different thermal expansion.
  • alloys are radiation-resistant and only show an approximately 10% lower radiation shielding effect than pure uranium.
  • the production of the alloys during melting is without problems, as is the casting of the corresponding shaped bodies.
  • the additions of the alloy metals can be varied in the areas claimed.
  • uranium alloys as radiation protection and container material has the further advantage that depleted uranium, which accumulates in large quantities during the enrichment of uranium-235 and must also be treated as radioactive waste, is simultaneously disposed of without the need for separate containers .
  • depleted uranium which accumulates in large quantities during the enrichment of uranium-235 and must also be treated as radioactive waste, is simultaneously disposed of without the need for separate containers .
  • uranium that has been reprocessed several times from the reprocessing of spent fuel elements which can no longer be used for fuel element production due to the accumulation of non-fissile uranium-236.
  • Alloying copper and zirconium to uranium primarily serves to improve the corrosion properties.
  • the zirconium content should not be higher than 5%, otherwise the melting point of the alloy will be reduced too much. Alloying of iron is also possible, although here too no more than 5% may be added, since otherwise the melting point drops below 900 ° C.
  • molybdenum and zircon eliminate the anisotropy of uranium.
  • the container according to the invention normally consists of a cast body made of uranium alloy, which is surrounded by an approximately 2 mm thick sheet metal jacket, which shields the alpha and beta rays that originate from the uranium or its decay production.
  • the figure shows schematically a cross section through a container.
  • the radiation protection material (1) in the form of a uranium alloy is surrounded on the outside by a thin sheet metal jacket (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Metallurgy (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (1)

  1. Récipient pour le stockage final de déchets radio-actifs, avec à l'intérieur des parois du récipient de l'uranium comme matériau de protection contre les rayonnement, récipient caractérisé en ce que comme matériau de protection contre les rayonnements, il est mis en oeuvre des alliages d'aluminium avec 5 à 15 % en poids de molybdène, et/ou 2 à 15 % en poids de cuivre, et/ou 1 à 5 % en poids de zirconium, et/ou 0,5 à 5 % de chrome, et/ou 0,5 à 2 % en poids de nickel, et/ou 0,5 à 1,5 % en poids de niobium, et/ou 0 à 5 % en poids de fer, le reste étant de l'uranium, la teneur totale des métaux participant à l'alliage étant de 10 à 16 % en poids et le supplément devant être d'au moins 1,5 % en poids en chrome et/ou en nickel et/ou en niobium.
EP84113941A 1983-12-22 1984-11-17 Récipient de stockage final de déchets radioactifs Expired EP0146778B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3346355A DE3346355C2 (de) 1983-12-22 1983-12-22 Behälter zur Endlagerung von radioaktiven Abfällen
DE3346355 1983-12-22

Publications (3)

Publication Number Publication Date
EP0146778A2 EP0146778A2 (fr) 1985-07-03
EP0146778A3 EP0146778A3 (en) 1985-12-27
EP0146778B1 true EP0146778B1 (fr) 1988-02-24

Family

ID=6217659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113941A Expired EP0146778B1 (fr) 1983-12-22 1984-11-17 Récipient de stockage final de déchets radioactifs

Country Status (5)

Country Link
US (1) US4650518A (fr)
EP (1) EP0146778B1 (fr)
JP (1) JPS60157098A (fr)
CA (1) CA1235002A (fr)
DE (2) DE3346355C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825088A (en) * 1987-10-30 1989-04-25 Westinghouse Electric Corp. Lightweight titanium cask assembly for transporting radioactive material
US4914306A (en) * 1988-08-11 1990-04-03 Dufrane Kenneth H Versatile composite radiation shield
DE3928711A1 (de) * 1988-12-31 1990-07-05 Karlheinz Hoesgen Absorptionsmantel zur absorption radioaktiver strahlung und spaltprodukte
US4968482A (en) * 1990-02-23 1990-11-06 The United States Of America As Represented By The United States Department Of Energy Uranium-titanium-niobium alloy
DE4116022C2 (de) * 1991-05-16 1995-03-23 Isotopentechnik Dr Sauerwein G Abschirmkörper eines Gammagraphie-Geräts
DE4143481C2 (de) * 1991-05-16 1995-04-06 Isotopentechnik Dr Sauerwein G Abschirmsystem eines Gammagraphie-Geräts
DE4116021C2 (de) * 1991-05-16 1995-03-23 Isotopentechnik Dr Sauerwein G Abschirmsystem eines Gammagraphie-Geräts
US5273711A (en) * 1991-10-08 1993-12-28 Nuclear Metals, Inc. High strength and ductile depleted uranium alloy
US5387741A (en) * 1993-07-30 1995-02-07 Shuttle; Anthony J. Method and apparatus for subterranean containment of hazardous waste material
US5832392A (en) * 1996-06-17 1998-11-03 The United States Of America As Represented By The United States Department Of Energy Depleted uranium as a backfill for nuclear fuel waste package
WO2015075751A1 (fr) 2013-11-21 2015-05-28 So.G.I.N. - Societa' Gestione Impianti Nucleari Verre pour le confinement d'éléments radioactifs et de déchets hautement toxiques et dangereux et procédure de confinement par ledit verre
CN115094351B (zh) * 2022-07-05 2023-01-24 西安交通大学 一种贫铀基吸储氢合金及方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR896910A (fr) * 1941-09-22 1945-03-07 Auergesellschaft Ag Récipients à substances radioactives, notamment dispositif d'application de ces substances
US2756489A (en) * 1946-05-03 1956-07-31 Howard E Morris Metal alloy
US3072475A (en) * 1951-03-07 1963-01-08 Richard D Baker Method of making alloys of second rare earth series metals
US2789072A (en) * 1952-12-22 1957-04-16 Jr Donald W White Heat treated uranium alloy and method of preparing same
GB816603A (en) * 1954-07-14 1959-07-15 Atomic Energy Authority Uk Ternary uranium alloy
NL275348A (fr) * 1961-03-01
GB984489A (en) * 1963-02-19 1965-02-24 Atomic Energy Authority Uk Uranium alloys
GB984847A (en) * 1963-02-19 1965-03-03 Atomic Energy Authority Uk Uranium alloys
GB1019156A (en) * 1964-12-17 1966-02-02 Atomic Energy Authority Uk Improvements in or relating to nuclear fuel materials
GB983803A (en) * 1964-02-11 1965-02-17 Atomic Energy Authority Uk Improvements in or relating to uranium alloys
GB984846A (en) * 1964-02-11 1965-03-03 Atomic Energy Authority Uk Improvements in or relating to uranium alloys
US3266890A (en) * 1964-03-23 1966-08-16 Greenspan Jacob Structural, high strength uranium alloys
US3545966A (en) * 1968-02-27 1970-12-08 Etude La Realisation De Combus Manufacture of improved nuclear fuels
US3731101A (en) * 1971-04-14 1973-05-01 Nl Industries Inc Shipping container for radioactive material
US3780306A (en) * 1971-05-27 1973-12-18 Nat Lead Co Radioactive shipping container with neutron and gamma absorbers
US3888795A (en) * 1971-07-07 1975-06-10 Atlantic Richfield Co Uh' 3 'cermet
DE2446381A1 (de) * 1974-09-27 1976-04-15 Siemens Ag Strahlenschutzmantel aus uran
FR2521337B1 (fr) * 1982-02-10 1987-01-16 Mitsui Mining & Smelting Co Recipient etanche pour dechets radioactifs

Also Published As

Publication number Publication date
EP0146778A3 (en) 1985-12-27
US4650518A (en) 1987-03-17
DE3346355C2 (de) 1985-11-07
CA1235002A (fr) 1988-04-12
JPS60157098A (ja) 1985-08-17
DE3469467D1 (en) 1988-03-31
DE3346355A1 (de) 1985-07-11
EP0146778A2 (fr) 1985-07-03

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