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EP0047857A3 - Process for decontaminating radioactively polluted surfaces - Google Patents

Process for decontaminating radioactively polluted surfaces Download PDF

Info

Publication number
EP0047857A3
EP0047857A3 EP81106216A EP81106216A EP0047857A3 EP 0047857 A3 EP0047857 A3 EP 0047857A3 EP 81106216 A EP81106216 A EP 81106216A EP 81106216 A EP81106216 A EP 81106216A EP 0047857 A3 EP0047857 A3 EP 0047857A3
Authority
EP
European Patent Office
Prior art keywords
pickling paste
film
pickling
decontaminating radioactively
polluted surfaces
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Withdrawn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
EP81106216A
Other languages
German (de)
French (fr)
Other versions
EP0047857A2 (en
Inventor
Jürgen Dr. Dipl.-Chem. Hofmann
Georg Dr. Dipl.-Chem. Brähler
Peter Demtröder
Lutz Glaesmann
Daniel Dr. Dipl.-Chem. Neupert
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 EP0047857A2 publication Critical patent/EP0047857A2/en
Publication of EP0047857A3 publication Critical patent/EP0047857A3/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Withdrawn legal-status Critical Current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
    • G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
    • G21F9/004—Decontamination of the surface of objects with chemical or electrochemical processes of metallic surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Es wird ein Verfahren zur Dekontamination radioaktiv verunreinigter Oberflächen beschrieben, durch Auftragen einer Beizpaste auf die kontaminierte Oberfläche und Entfer­ nen der Beizpaste samt Kontamination, wobei eine Beizpaste verwendet wird, die neben einem Beizmittel noch ein Netzmittel, einen Füllstoff und eine wässrige, filmbildende, beizmittelresistente Kunststoffdispersion enthält. Nach der Verfestigung des Kunststoffbestandteils wird die Beizpaste mit den in ihr enthaltenden Kontaminatonsverursachern als Folie von der Oberfläche abgezogen. There is a radioactive decontamination process contaminated surfaces described by application a pickling paste on the contaminated surface and removal the pickling paste including contamination, using a pickling paste is used in addition to a mordant Wetting agent, a filler and an aqueous, film-forming, contains medium-resistant plastic dispersion. After The pickling paste solidifies the plastic component with the contaminants it contains as Peeled off the film.

EP81106216A 1980-09-13 1981-08-08 Process for decontaminating radioactively polluted surfaces Withdrawn EP0047857A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034615 1980-09-13
DE3034615 1980-09-13

Publications (2)

Publication Number Publication Date
EP0047857A2 EP0047857A2 (en) 1982-03-24
EP0047857A3 true EP0047857A3 (en) 1982-06-23

Family

ID=6111885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106216A Withdrawn EP0047857A3 (en) 1980-09-13 1981-08-08 Process for decontaminating radioactively polluted surfaces

Country Status (1)

Country Link
EP (1) EP0047857A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446931C2 (en) * 1984-12-21 1987-01-08 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Method for decontaminating the surface of an object
FR2690163A1 (en) * 1992-04-17 1993-10-22 Commissariat Energie Atomique Method for decontaminating the surface layer of a soil covered with polluting particles and decontamination solution
GB2331106A (en) * 1997-11-05 1999-05-12 Polyval Plc Use of polyvinyl alcohol as rust remover
FR2798603B1 (en) 1999-09-20 2002-03-01 Tech En Milieu Ionisant Stmi S ORGANIC DECONTAMINATION GEL AND ITS USE FOR DECONTAMINATION OF SURFACES
DE102005037335B4 (en) * 2005-08-04 2008-12-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Residue-free removable pickling agent
CN110689987B (en) * 2019-10-22 2021-01-12 中国核动力研究设计院 Comprehensive decontamination process for stainless steel shell of hot chamber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB781117A (en) * 1954-05-07 1957-08-14 France Etat Improvements in compositions of matter for cleaning metal bodies
GB930370A (en) * 1960-08-16 1963-07-03 Atomic Energy Authority Uk Cleansing agent for radioactive contamination
DE1276261B (en) * 1965-05-17 1968-08-29 Hoechst Ag Pastes for treating the surfaces of solid substances
FR2380624A1 (en) * 1977-02-09 1978-09-08 Commissariat Energie Atomique Radioactive decontamination by applying gel contg. decontaminant - then rinsing off or removing when dry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB781117A (en) * 1954-05-07 1957-08-14 France Etat Improvements in compositions of matter for cleaning metal bodies
GB930370A (en) * 1960-08-16 1963-07-03 Atomic Energy Authority Uk Cleansing agent for radioactive contamination
DE1276261B (en) * 1965-05-17 1968-08-29 Hoechst Ag Pastes for treating the surfaces of solid substances
FR2380624A1 (en) * 1977-02-09 1978-09-08 Commissariat Energie Atomique Radioactive decontamination by applying gel contg. decontaminant - then rinsing off or removing when dry

Also Published As

Publication number Publication date
EP0047857A2 (en) 1982-03-24

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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: 19810808

AK Designated contracting states

Designated state(s): BE CH DE FR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE FR

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19840504

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GLAESMANN, LUTZ

Inventor name: HOFMANN, JUERGEN, DR. DIPL.-CHEM.

Inventor name: BRAEHLER, GEORG, DR. DIPL.-CHEM.

Inventor name: DEMTROEDER, PETER

Inventor name: NEUPERT, DANIEL, DR. DIPL.-CHEM.