ES8103453A1 - Un metodo de descontaminar y retirar productos de corrosion,de los cuales algunos son radiactivos, de superficies de re-actores nucleares. - Google Patents

Un metodo de descontaminar y retirar productos de corrosion,de los cuales algunos son radiactivos, de superficies de re-actores nucleares.

Info

Publication number
ES8103453A1
ES8103453A1 ES490334A ES490334A ES8103453A1 ES 8103453 A1 ES8103453 A1 ES 8103453A1 ES 490334 A ES490334 A ES 490334A ES 490334 A ES490334 A ES 490334A ES 8103453 A1 ES8103453 A1 ES 8103453A1
Authority
ES
Spain
Prior art keywords
metal oxides
ozone
chromium
nuclear reactor
alloys
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
ES490334A
Other languages
English (en)
Other versions
ES490334A0 (es
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.)
Atomic Energy of Canada Ltd AECL
Original Assignee
Atomic Energy of Canada Ltd AECL
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 Atomic Energy of Canada Ltd AECL filed Critical Atomic Energy of Canada Ltd AECL
Publication of ES490334A0 publication Critical patent/ES490334A0/es
Publication of ES8103453A1 publication Critical patent/ES8103453A1/es
Expired 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

METODO DE SEPARACION DE MATERIAL RADIACTIVO DISPERSO EN LAS PAREDES DE SUPERFICIES PRIMARIAS DE TRANSPORTE DE CALOR DE REACTORES NUCLEARES, CONTENIENDO DICHAS SUPERFICIES OXIDOS METALICOS INSOLUBLES EN ACIDOS, QUE SE HACEN MAS SOLUBLES POR OXIDACION. EL METODO REQUIERE: (1) PONER EN CONTACTO LAS SUPERFICIES CONTAMINADAS CON OZONO EN UN GRADO SUFICIENTE PARA OXIDAR EL OXIDO; (2) DISOLVER ESTOS OXIDOS EN UN LIQUIDO ACUOSO; (3) SEPARAR LOS OXIDOS SUPERFICIALES QUE QUEDAN EN EL ANTERIOR LIQUIDO ACUOSO QUE CONTIENE REACTIVOS DESCONTAMINANTES ACIDOS SEPARADORES DE OXIDOS; (4) FILTRAR LOS LIQUIDOS ACUOSOS RESULTANTES PARA SEPARAR LAS PARTICULAS SOLIDAS; (5) TRATAR LOS LIQUIDOS ACUOSOS PARA SEPARAR LOS METALES DISUELTOS; (6) SEPARAR TANTO LOS METALES DISUELTOS COMO LOS REACTIVOS RESIDUALES DEL SISTEMA DEL REACTOR PARA COMPLETAR LA DESCONTAMINACION. EL VEHICULO DESTINADO AL TRANSPORTE DEL OZONO Y DE LOS REACTIVOS DESCONTAMINANTES ES EL AGUA PESADA, QUE ACTUA ENTONCES REALIZANDO LAS FUNCIONES DEL LIQUIDO ACUOSO ANTES MENCIONADA. LOS REACTIVOS DE DESCONTAMINACION HAN DE TENER LA CARACTERISTICA DE NO SER CORROSIVOS Y DE FACILITAR LA SEPARACION DE LOS REACTIVOS EN LA OPERACION (6).
ES490334A 1979-04-09 1980-04-08 Un metodo de descontaminar y retirar productos de corrosion,de los cuales algunos son radiactivos, de superficies de re-actores nucleares. Expired ES8103453A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/028,200 US4287002A (en) 1979-04-09 1979-04-09 Nuclear reactor decontamination

Publications (2)

Publication Number Publication Date
ES490334A0 ES490334A0 (es) 1981-02-16
ES8103453A1 true ES8103453A1 (es) 1981-02-16

Family

ID=21842115

Family Applications (1)

Application Number Title Priority Date Filing Date
ES490334A Expired ES8103453A1 (es) 1979-04-09 1980-04-08 Un metodo de descontaminar y retirar productos de corrosion,de los cuales algunos son radiactivos, de superficies de re-actores nucleares.

Country Status (7)

Country Link
US (1) US4287002A (es)
JP (1) JPS55135800A (es)
CA (1) CA1117852A (es)
DE (1) DE3013551A1 (es)
ES (1) ES8103453A1 (es)
FR (1) FR2454159A1 (es)
SE (1) SE434894B (es)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077482B (en) * 1980-06-06 1983-06-08 Us Energy Coolant system decontamination
DE3038807A1 (de) * 1980-10-14 1982-06-03 Alkem Gmbh, 6450 Hanau Verfahren zum aufloesen schwerloeslicher thorium- und/oder plutoiumoxide
EP0071336B1 (en) * 1981-06-17 1986-03-26 Central Electricity Generating Board Process for the chemical dissolution of oxide deposits
US4476047A (en) * 1982-03-22 1984-10-09 London Nuclear Limited Process for treatment of oxide films prior to chemical cleaning
US4546087A (en) * 1982-10-29 1985-10-08 Deere & Company Method for detecting the presence of a chromate coating on aluminum
SE435329B (sv) * 1983-02-09 1984-09-17 Studsvik Energiteknik Ab Dekontaminering av tryckvattenreaktorer
US4587043A (en) * 1983-06-07 1986-05-06 Westinghouse Electric Corp. Decontamination of metal surfaces in nuclear power reactors
US4582004A (en) * 1983-07-05 1986-04-15 Westinghouse Electric Corp. Electric arc heater process and apparatus for the decomposition of hazardous materials
CA1229480A (en) * 1983-07-12 1987-11-24 Alexander P. Murray Ozone oxidation of deposits in cooling systems of nuclear reactors
DE3345782A1 (de) * 1983-12-17 1985-06-27 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Verfahren zur primaerkreis-dekontamination von reaktoren
SE451915B (sv) * 1984-03-09 1987-11-02 Studsvik Energiteknik Ab Forfarande for dekontaminering av tryckvattenreaktorer
US4654170A (en) * 1984-06-05 1987-03-31 Westinghouse Electric Corp. Hypohalite oxidation in decontaminating nuclear reactors
DE3578635D1 (de) * 1984-10-31 1990-08-16 Kraftwerk Union Ag Verfahren zur chemischen dekontamination von grosskomponenten und systemen aus metallischen werkstoffen von kernreaktoren.
GB8613522D0 (en) * 1986-06-04 1986-07-09 British Nuclear Fuels Plc Technetium decontamination
US4747907A (en) * 1986-10-29 1988-05-31 International Business Machines Corporation Metal etching process with etch rate enhancement
US4913849A (en) * 1988-07-07 1990-04-03 Aamir Husain Process for pretreatment of chromium-rich oxide surfaces prior to decontamination
WO1992003829A1 (en) * 1990-08-28 1992-03-05 Electric Power Research Institute Organic material oxidation process utilizing no added catalyst
DE4117624A1 (de) * 1991-05-29 1992-12-03 Siemens Ag Verfahren zur passivierung einer bauteiloberflaeche
FR2689298B1 (fr) * 1992-03-24 1994-10-21 Framatome Sa Procédé d'élimination de dépôts de corrosion dans la partie secondaire d'un générateur de vapeur d'un réacteur nucléaire refroidi par de l'eau sous pression.
FR2691282B1 (fr) * 1992-05-12 1994-10-21 Framatome Sa Procédé d'élimination de dépôts de corrosion dans la partie secondaire d'un générateur de vapeur d'un réacteur nucléaire.
DE4308209C2 (de) * 1993-03-15 1996-12-05 Siemens Ag Verfahren zum Entfernen von metallischem Blei
US5678232A (en) * 1995-07-31 1997-10-14 Corpex Technologies, Inc. Lead decontamination method
RU2101650C1 (ru) * 1996-03-18 1998-01-10 Государственный научный центр РФ "Физико-энергетический институт" Способ очистки внутренней поверхности стального циркуляционного контура с жидкометаллическим теплоносителем на основе свинца
US5814204A (en) * 1996-10-11 1998-09-29 Corpex Technologies, Inc. Electrolytic decontamination processes
US6718002B2 (en) * 1997-05-21 2004-04-06 Westinghouse Atom Ab Method and device for removing radioactive deposits
EP1054413B1 (en) 1999-05-13 2013-07-17 Kabushiki Kaisha Toshiba Method of chemically decontaminating components of radioactive material handling facility and system for carrying out the same
TW529041B (en) * 2000-12-21 2003-04-21 Toshiba Corp Chemical decontamination method and treatment method and apparatus of chemical decontamination solution
JP4299974B2 (ja) * 2001-02-01 2009-07-22 株式会社東芝 放射線取扱い施設の構造部品の化学除染方法およびその装置
US6867148B2 (en) * 2001-05-16 2005-03-15 Micron Technology, Inc. Removal of organic material in integrated circuit fabrication using ozonated organic acid solutions
JP2003098294A (ja) * 2001-09-27 2003-04-03 Hitachi Ltd オゾンを用いた除染方法及びその装置
AU2003259061A1 (en) * 2002-09-06 2004-03-29 Westinghouse Electric Company Llc Pressurized water reactor shutdown method
KR100724710B1 (ko) * 2002-11-21 2007-06-04 가부시끼가이샤 도시바 방사화 부품의 화학적 오염제거 시스템 및 방법
JP2004212228A (ja) * 2002-12-27 2004-07-29 Iwatani Internatl Corp 放射性物質で汚染された金属構造部品の化学除染方法
BRPI0621970A2 (pt) * 2005-11-29 2011-07-19 Areva Np Gmbh método para descontaminação de uma superfìcie contendo camada de óxido de um componente ou de um sistema de uma instalação nuclear
KR101086600B1 (ko) * 2006-02-09 2011-11-23 가부시끼가이샤 도시바 화학 제염 장치 및 그 제염 방법
DE102013100933B3 (de) * 2013-01-30 2014-03-27 Areva Gmbh Verfahren zur Oberflächen-Dekontamination von Bauteilen des Kühlmittelkreislaufs eines Kernreaktors
JP6752358B2 (ja) 2017-01-19 2020-09-09 フラマトム ゲゼルシャフト ミット ベシュレンクテル ハフツング 原子力施設の金属表面の除染方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013909A (en) * 1960-03-31 1961-12-19 Guyon P Pancer Method of chemical decontamination of stainless steel nuclear facilities
US3664870A (en) * 1969-10-29 1972-05-23 Nalco Chemical Co Removal and separation of metallic oxide scale
JPS4929239B1 (es) * 1970-07-02 1974-08-02
US3873362A (en) * 1973-05-29 1975-03-25 Halliburton Co Process for cleaning radioactively contaminated metal surfaces
DE2358683A1 (de) * 1973-11-24 1975-06-05 Kalman Von Dipl Phys Soos Verfahren zum beizen und aetzen von metallen
US4042455A (en) * 1975-05-08 1977-08-16 Westinghouse Electric Corporation Process for dissolving radioactive corrosion products from internal surfaces of a nuclear reactor
CH619807A5 (es) * 1976-04-07 1980-10-15 Foerderung Forschung Gmbh

Also Published As

Publication number Publication date
CA1117852A (en) 1982-02-09
DE3013551A1 (de) 1980-10-16
US4287002A (en) 1981-09-01
ES490334A0 (es) 1981-02-16
FR2454159A1 (fr) 1980-11-07
JPS6158800B2 (es) 1986-12-13
SE434894B (sv) 1984-08-20
SE8001827L (sv) 1980-10-10
JPS55135800A (en) 1980-10-22

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