ES2064683T3 - Procedimiento de disolucion de oxido depositado sobre un substrato metalico y su aplicacion a la descontaminacion. - Google Patents

Procedimiento de disolucion de oxido depositado sobre un substrato metalico y su aplicacion a la descontaminacion.

Info

Publication number
ES2064683T3
ES2064683T3 ES90401826T ES90401826T ES2064683T3 ES 2064683 T3 ES2064683 T3 ES 2064683T3 ES 90401826 T ES90401826 T ES 90401826T ES 90401826 T ES90401826 T ES 90401826T ES 2064683 T3 ES2064683 T3 ES 2064683T3
Authority
ES
Spain
Prior art keywords
decontamination
application
oxide deposited
metallic substrate
etching
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 - Lifetime
Application number
ES90401826T
Other languages
English (en)
Inventor
Didier Noel
Jacques Gregoire
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Application granted granted Critical
Publication of ES2064683T3 publication Critical patent/ES2064683T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

LA INVENCION SE REFIERE AL PROCEDIMIENTO DE DISOLUCION DEL OXIDO DEPOSITADO SOBRE UN SUBSTRATO METALICO. ESTE PROCEDIMIENTO COMPRENDE LAS ETAPAS SIGUIENTES: A) ATAQUE AL MEDIO POR UNA DISOLUCION OXIDANTE QUE CONTIENE ANION PERMANGANATO A UN PH COMPRENDIDO ENTRE 2 Y 6, PREFERIBLEMENTE ENTRE 2 Y 4, ELIGIENDOSE LA DURACION DEL ATAQUE DE MODO QUE LA FASE EXPONENCIAL ESTE TERMINADA, CONTENIENDO IGUALMENTE LA DISOLUCION OXIDANTE ION SULFATO A UNA CONCENTRACION COMPRENDIDA ENTRE 10-2 Y 10-5, PREFERIBLEMENTE ENTRE 10-3 Y 10-4; B) UN ATAQUE REDUCTOR POR MEDIO DE UN COMPUESTO ORGANICO FACILMENTE DEGRADABLE. APLICACION A LA DESCONTAMINACION DE ORGANOS DE CENTRALES NUCLEARES.
ES90401826T 1989-06-27 1990-06-26 Procedimiento de disolucion de oxido depositado sobre un substrato metalico y su aplicacion a la descontaminacion. Expired - Lifetime ES2064683T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8908524A FR2648946B1 (fr) 1989-06-27 1989-06-27 Procede de dissolution d'oxyde depose sur un substrat metallique et son application a la decontamination

Publications (1)

Publication Number Publication Date
ES2064683T3 true ES2064683T3 (es) 1995-02-01

Family

ID=9383147

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90401826T Expired - Lifetime ES2064683T3 (es) 1989-06-27 1990-06-26 Procedimiento de disolucion de oxido depositado sobre un substrato metalico y su aplicacion a la descontaminacion.

Country Status (6)

Country Link
EP (1) EP0406098B1 (es)
AT (1) ATE112089T1 (es)
DE (1) DE69012677T2 (es)
ES (1) ES2064683T3 (es)
FR (1) FR2648946B1 (es)
ZA (1) ZA904913B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699936B1 (fr) * 1992-12-24 1995-01-27 Electricite De France Procédé de dissolution d'oxydes déposés sur un substrat métallique.
DE19818772C2 (de) * 1998-04-27 2000-05-31 Siemens Ag Verfahren zum Abbau der Radioaktivität eines Metallteiles
JP3977963B2 (ja) 1999-09-09 2007-09-19 株式会社日立製作所 化学除染方法
FR2850673B1 (fr) * 2003-02-04 2006-09-08 Electricite De France Procede de dissolution d'oxydes deposes sur un substrat metallique stellite
US10056163B2 (en) 2011-09-20 2018-08-21 Siempelkamp NIS Ingenieurgesellschaft mbH Method for dissolving an oxide layer
DE102013102331B3 (de) * 2013-03-08 2014-07-03 Horst-Otto Bertholdt Verfahren zum Abbau einer Oxidschicht
DE102016104846B3 (de) * 2016-03-16 2017-08-24 Areva Gmbh Verfahren zur Behandlung von Abwasser aus der Dekontamination einer Metalloberfläche, Abwasserbehandlungsvorrichtung und Verwendung der Abwasserbehandlungsvorrichtung
EP4269657A1 (en) * 2022-04-29 2023-11-01 Technochim SA Method for dissolving metal oxides from life sciences equipment
FR3143177A1 (fr) 2022-12-07 2024-06-14 Electricite De France Procédé de dissolution d’oxydes contenant une contamination en argent et cobalt sur un substrat métallique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE18822T1 (de) * 1981-06-17 1986-04-15 Central Electr Generat Board Verfahren zur chemischen zersetzung von oxydniederschlaegen.
SE435329B (sv) * 1983-02-09 1984-09-17 Studsvik Energiteknik Ab Dekontaminering av tryckvattenreaktorer
GB2191329B (en) * 1986-06-04 1989-12-13 British Nuclear Fuels Plc Decontamination of surfaces
BE904936A (nl) * 1986-06-17 1986-10-16 Lemmens Godfried Werkwijze voor de decontaminatie van radioaktief besmette materialen.

Also Published As

Publication number Publication date
DE69012677D1 (de) 1994-10-27
EP0406098B1 (fr) 1994-09-21
FR2648946B1 (fr) 1994-02-04
FR2648946A1 (fr) 1990-12-28
ATE112089T1 (de) 1994-10-15
EP0406098A1 (fr) 1991-01-02
DE69012677T2 (de) 1995-03-16
ZA904913B (en) 1991-05-29

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