EP0062831A1 - Conteneur pour le stockage de longue durée de matières radioactives - Google Patents

Conteneur pour le stockage de longue durée de matières radioactives Download PDF

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Publication number
EP0062831A1
EP0062831A1 EP82102660A EP82102660A EP0062831A1 EP 0062831 A1 EP0062831 A1 EP 0062831A1 EP 82102660 A EP82102660 A EP 82102660A EP 82102660 A EP82102660 A EP 82102660A EP 0062831 A1 EP0062831 A1 EP 0062831A1
Authority
EP
European Patent Office
Prior art keywords
container
copper
term storage
based alloy
radioactive materials
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.)
Granted
Application number
EP82102660A
Other languages
German (de)
English (en)
Other versions
EP0062831B1 (fr
Inventor
Hartmut Dipl. Phys. Kroll
Günther Dr. Dipl. Chem. Luthardt
Horst Dr. Dipl. Chem. Vietzke
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.)
Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
Nukem GmbH
Original Assignee
Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
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 Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH, Nukem GmbH filed Critical Deutsche Gesellschaft fuer Wiederaufarbeitung von Kernbrennstoffen mbH
Publication of EP0062831A1 publication Critical patent/EP0062831A1/fr
Application granted granted Critical
Publication of EP0062831B1 publication Critical patent/EP0062831B1/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
    • 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 long-term storage of radioactive substances, in particular radioactive fuel elements, in suitable geological formations, consisting essentially of a container body and a lid.
  • Irradiated, spent fuel elements are processed either immediately after temporary storage in water basins or after a limited further interim storage.
  • the nuclear fuels and broods are separated from the fission products and returned to the fuel cycle.
  • the fission products are conditioned by known methods, usually using large amounts of valuable materials, such as lead and copper, and in practical geological formations they are virtually no longer removable.
  • Very complex concepts are known in some cases for storing irradiated fuel assemblies in metal, concrete in salt, sand or in rock caverns.
  • Containers made of alloyed and unalloyed steel, copper and corundum are used as packaging for radioactive substances, especially for irradiated fuel elements suggested.
  • the containers are either not sufficiently corrosion-resistant or, like copper, are very expensive.
  • Corundum containers are generally suitable, but the experience required for their manufacture is lacking.
  • the fuel elements for packaging would have to be disassembled into small corundum containers for manufacturing reasons, which is possible, but is associated with considerable costs and safety-related expenses.
  • the invention was therefore based on the object of creating a container for the long-term storage of radioactive waste, in particular spent fuel elements, in suitable geological formations, consisting essentially of a container base body and a lid which, with particularly economical use of valuable material, is also corrosion-proof in long periods of time is ..
  • the container body and lid consist of a copper-based alloy with tin, aluminum, nickel or beryllium.
  • the container according to the invention can advantageously be equipped with relatively thin wall thicknesses, wall thicknesses between 0.5 and 10 cm being particularly favorable.
  • wall thicknesses between 0.5 and 10 cm being particularly favorable.
  • the copper-based alloy contains either 2 to 20% tin or 6 to 10% aluminum, in the latter case optionally iron and / or nickel in addition to aluminum. Processing is carried out in a manner known per se, u. a. by continuous casting or centrifugal casting. In special cases, it is even possible to use certain copper-based alloys, e.g. B. "tin bronzes" electrolytically on a suitable thin support material, which alone is not a container casing function, to be deposited.
  • the copper-based alloy additionally contains dispersed oxide particles.
  • oxides are, for example, tin oxide (Sn0 2 ), thorium oxide (Th0 2 ), rare earth oxides, e.g. B. of gadolinium and samarium, but also tungsten oxide (WO 3 ) suitable, in some cases also uranium dioxide (U0 2 ).
  • non-oxides such as e.g. B. boron carbide (B 4 C) may be included. All of these dispersed particles can, depending on the nature of the radioactive container contents, improve the shielding against radioactive radiation.
  • the dispersed oxide particles consist of the uranium oxide U 3 O 8 is particularly advantageous since this oxide because of its shielding action and because of its inert chemical behavior, but also because of its z. B. compared to "tin bronze" favorable density, is extremely suitable for this purpose. It is advisable to use U 3 O 8 powder that contains uranium depleted in U-235.
  • the copper-based alloys with the alloyed metals mentioned can contain minor amounts of impurities without increasing the corrosion rates. For electrochemical reasons, even an improvement in the corrosion behavior, e.g. B. against salt solutions, may be possible.
  • impurities can u. ⁇ -. Include iron, lead, arsenic, antimony and bismuth.
  • the figure shows a container for long-term storage of radioactive substances. It consists of a container body (1) and a lid (2). The lid (2) can also be cast onto the container body (1). A copper-based alloy containing dispersed oxide particles (3) is used as the material for the container base body (1) and lid (2).
  • the container according to the invention also has sufficient mechanical stability even with thin wall thicknesses, has excellent corrosion properties with low use of recyclables and is also excellently suitable as an over-container for pre-packaged radioactive materials such as fuel assemblies, fuel rods and waste.
  • the container according to the invention can be equipped with the usual handling aids. Furthermore, the container can also be equipped with an optionally removable cooling fin jacket and with further additional auxiliary devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
EP82102660A 1981-04-11 1982-03-30 Conteneur pour le stockage de longue durée de matières radioactives Expired EP0062831B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3114725 1981-04-11
DE19813114725 DE3114725A1 (de) 1981-04-11 1981-04-11 Behaelter zur langzeitlagerung von radioaktiven stoffen (ii)

Publications (2)

Publication Number Publication Date
EP0062831A1 true EP0062831A1 (fr) 1982-10-20
EP0062831B1 EP0062831B1 (fr) 1984-10-31

Family

ID=6129956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102660A Expired EP0062831B1 (fr) 1981-04-11 1982-03-30 Conteneur pour le stockage de longue durée de matières radioactives

Country Status (3)

Country Link
EP (1) EP0062831B1 (fr)
JP (1) JPS57179800A (fr)
DE (2) DE3114725A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111712886A (zh) * 2017-12-08 2020-09-25 阿科姆工程合资(控股)公司 用于长期存储乏燃料的方法及用于其实施的冷却存储罐

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077299A (ja) * 1983-10-04 1985-05-01 オムロン株式会社 路線バス運行管理システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781189A (en) * 1971-07-07 1973-12-25 Atlantic Richfield Co Spent nuclear fuel shipping casks
US4227928A (en) * 1978-05-01 1980-10-14 Kennecott Copper Corporation Copper-boron carbide composite particle and method for its production
EP0020948A2 (fr) * 1979-06-21 1981-01-07 The Carborundum Company Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons
US4253917A (en) * 1979-08-24 1981-03-03 Kennecott Copper Corporation Method for the production of copper-boron carbide composite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781189A (en) * 1971-07-07 1973-12-25 Atlantic Richfield Co Spent nuclear fuel shipping casks
US4227928A (en) * 1978-05-01 1980-10-14 Kennecott Copper Corporation Copper-boron carbide composite particle and method for its production
EP0020948A2 (fr) * 1979-06-21 1981-01-07 The Carborundum Company Conteneur pour des matériaux radioactifs, procédé de fabrication d'un tel conteneur, module utilisé pour cette fabrication et méthode de blindage contre les neutrons
US4253917A (en) * 1979-08-24 1981-03-03 Kennecott Copper Corporation Method for the production of copper-boron carbide composite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111712886A (zh) * 2017-12-08 2020-09-25 阿科姆工程合资(控股)公司 用于长期存储乏燃料的方法及用于其实施的冷却存储罐
CN111712886B (zh) * 2017-12-08 2024-03-19 阿科姆工程合资(控股)公司 用于长期存储乏燃料的方法及用于其实施的冷却存储罐

Also Published As

Publication number Publication date
DE3261104D1 (en) 1984-12-06
JPS57179800A (en) 1982-11-05
DE3114725A1 (de) 1982-10-21
EP0062831B1 (fr) 1984-10-31

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