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EP0071020A3 - Method for removing radioactive material from devices and apparatus therefor - Google Patents

Method for removing radioactive material from devices and apparatus therefor Download PDF

Info

Publication number
EP0071020A3
EP0071020A3 EP82105586A EP82105586A EP0071020A3 EP 0071020 A3 EP0071020 A3 EP 0071020A3 EP 82105586 A EP82105586 A EP 82105586A EP 82105586 A EP82105586 A EP 82105586A EP 0071020 A3 EP0071020 A3 EP 0071020A3
Authority
EP
European Patent Office
Prior art keywords
radioactive material
devices
apparatus therefor
removing radioactive
sodium
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.)
Withdrawn
Application number
EP82105586A
Other languages
German (de)
French (fr)
Other versions
EP0071020A2 (en
Inventor
Nobuyoshi Miyaji
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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
Priority claimed from JP10064781A external-priority patent/JPS582796A/en
Priority claimed from JP10064981A external-priority patent/JPS582798A/en
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of EP0071020A2 publication Critical patent/EP0071020A2/en
Publication of EP0071020A3 publication Critical patent/EP0071020A3/en
Withdrawn legal-status Critical Current

Links

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
    • G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A method for removing radioactive material fixed to a device (4), comprising the steps of immersing the contamin­ ated device (4) in a sodium flow (13), thereby dissolving the radioactive material into the sodium flow (13), and thereafter collecting the radioactive material in a trap (7). An apparatus for carrying out above method, wherein a receptacle (1) for receiving a device (13) contaminated with radioactive mate­ rial and a trap (7) for the radioactive material are disposed in a sodium-circulating system provided with a heating means (9).
EP82105586A 1981-06-30 1982-06-24 Method for removing radioactive material from devices and apparatus therefor Withdrawn EP0071020A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10064781A JPS582796A (en) 1981-06-30 1981-06-30 Device and method of decontaminating equipment contaminated with radioactive material
JP100649/81 1981-06-30
JP10064981A JPS582798A (en) 1981-06-30 1981-06-30 Method of decontaminating equipment contaminated with radioactive material
JP100647/81 1981-06-30

Publications (2)

Publication Number Publication Date
EP0071020A2 EP0071020A2 (en) 1983-02-09
EP0071020A3 true EP0071020A3 (en) 1985-12-27

Family

ID=26441635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105586A Withdrawn EP0071020A3 (en) 1981-06-30 1982-06-24 Method for removing radioactive material from devices and apparatus therefor

Country Status (1)

Country Link
EP (1) EP0071020A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955403A (en) * 1988-11-30 1990-09-11 Westinghouse Electric Corp. Closed loop system and method for cleaning articles with a volatile cleaning solvent

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552404A (en) * 1967-02-16 1971-01-05 Degussa Installation for the descaling of metals
US3632410A (en) * 1968-08-16 1972-01-04 Trw Inc Preparation of clean metal surfaces for diffusion bonding

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552404A (en) * 1967-02-16 1971-01-05 Degussa Installation for the descaling of metals
US3632410A (en) * 1968-08-16 1972-01-04 Trw Inc Preparation of clean metal surfaces for diffusion bonding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 92, no. 20, 19 May 1980, page 499, abstract no. 171382e, Columbus, Ohio, US; L.J. Urbanek, Matal, & CS - A - 1 80658:"Removing the products of chemical reaction between sodium and water from steam generators with sodium heat carrier" *

Also Published As

Publication number Publication date
EP0071020A2 (en) 1983-02-09

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19820721

AK Designated contracting states

Designated state(s): DE FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KABUSHIKI KAISHA TOSHIBA

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19870709

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880120

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIYAJI, NOBUYOSHI