DE3166480D1 - An application technique for the descaling of surfaces - Google Patents

An application technique for the descaling of surfaces

Info

Publication number
DE3166480D1
DE3166480D1 DE8181303453T DE3166480T DE3166480D1 DE 3166480 D1 DE3166480 D1 DE 3166480D1 DE 8181303453 T DE8181303453 T DE 8181303453T DE 3166480 T DE3166480 T DE 3166480T DE 3166480 D1 DE3166480 D1 DE 3166480D1
Authority
DE
Germany
Prior art keywords
treated
descaling
ingredients
mixing
transition metal
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
DE8181303453T
Other languages
English (en)
Inventor
David Bradbury
Timothy Swan
Michael Giles Segal
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.)
NUCLEAR ELECTRIC PLC, BARNWOOD, GLOUCESTER, GB
Original Assignee
Central Electricity Generating Board
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 Central Electricity Generating Board filed Critical Central Electricity Generating Board
Application granted granted Critical
Publication of DE3166480D1 publication Critical patent/DE3166480D1/de
Expired 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)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)
DE8181303453T 1980-08-11 1981-07-27 An application technique for the descaling of surfaces Expired DE3166480D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8026102A GB2085215A (en) 1980-08-11 1980-08-11 An application technique for the decontamination of nuclear reactors

Publications (1)

Publication Number Publication Date
DE3166480D1 true DE3166480D1 (en) 1984-11-08

Family

ID=10515370

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181303453T Expired DE3166480D1 (en) 1980-08-11 1981-07-27 An application technique for the descaling of surfaces

Country Status (6)

Country Link
US (2) US4470951A (de)
EP (1) EP0046029B1 (de)
JP (1) JPS5754898A (de)
AT (1) ATE9719T1 (de)
DE (1) DE3166480D1 (de)
GB (1) GB2085215A (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032416B2 (de) * 1980-01-08 1987-06-16 Central Electricity Generating Board Verfahren zum Entfernen von Ablagerungen
JPS5790200A (en) * 1980-11-26 1982-06-04 Tokyo Shibaura Electric Co Method and device for removing water scale
US4701246A (en) * 1985-03-07 1987-10-20 Kabushiki Kaisha Toshiba Method for production of decontaminating liquid
DE3683556D1 (de) * 1985-07-31 1992-03-05 Fuji Photo Film Co Ltd Verfahren zur generierung von alkali.
JPH0640153B2 (ja) * 1985-08-22 1994-05-25 株式会社日立製作所 二価クロムイオン還元再生液を用いる除染方法
US4913849A (en) * 1988-07-07 1990-04-03 Aamir Husain Process for pretreatment of chromium-rich oxide surfaces prior to decontamination
ES2045298T3 (es) * 1988-08-24 1994-01-16 Siemens Ag Procedimiento para la descontaminacion quimica de la superficie de un componente metalico de una instalacion de reactor nuclear.
US5200117A (en) * 1989-04-03 1993-04-06 Mobil Oil Corporation Sulfate scale dissolution
US5078842A (en) * 1990-08-28 1992-01-07 Electric Power Research Institute Process for removing radioactive burden from spent nuclear reactor decontamination solutions using electrochemical ion exchange
US5089216A (en) * 1990-11-26 1992-02-18 Westinghouse Electric Corp. System for chemical decontamination of nuclear reactor primary systems
US5132076A (en) * 1990-12-18 1992-07-21 Westinghouse Electric Corp. In-containment chemical decontamination system for nuclear rector primary systems
US5171519A (en) * 1990-12-19 1992-12-15 Westinghouse Electric Corp. Outside of containment chemical decontamination system for nuclear reactor primary systems
US5205999A (en) * 1991-09-18 1993-04-27 British Nuclear Fuels Plc Actinide dissolution
US5306399A (en) * 1992-10-23 1994-04-26 Electric Power Research Institute Electrochemical exchange anions in decontamination solutions
US5278743A (en) * 1992-11-20 1994-01-11 Westinghouse Electric Corp. Alkaline-permanganate process
US5305360A (en) * 1993-02-16 1994-04-19 Westinghouse Electric Corp. Process for decontaminating a nuclear reactor coolant system
US5489735A (en) * 1994-01-24 1996-02-06 D'muhala; Thomas F. Decontamination composition for removing norms and method utilizing the same
US5640703A (en) * 1994-04-18 1997-06-17 British Nuclear Fuels Plc Treatment of solid wastes
US5948267A (en) * 1994-10-07 1999-09-07 Kay Chemical Company Composition and method for inhibiting chloride-Induced corrosion and limescale formation on ferrous metals and alloys
US6042742A (en) * 1994-10-07 2000-03-28 Whittemore; Michael Composition and method for inhibiting chloride-induced corrosion of and limescale formation on ferrous metals and alloys
US5675880A (en) * 1996-08-29 1997-10-14 Bethlehem Steel Corporation Descaling system for use in the manufacture of steel and corresponding method
US5814204A (en) * 1996-10-11 1998-09-29 Corpex Technologies, Inc. Electrolytic decontamination processes
US5805654A (en) * 1997-04-08 1998-09-08 Wood; Christopher J. Regenerative LOMI decontamination process
US5901368A (en) * 1997-06-04 1999-05-04 Electric Power Research Institute Radiolysis-assisted decontamination process
DE19818772C2 (de) * 1998-04-27 2000-05-31 Siemens Ag Verfahren zum Abbau der Radioaktivität eines Metallteiles
US6944254B2 (en) * 2002-09-06 2005-09-13 Westinghouse Electric Co., Llc Pressurized water reactor shutdown method
DE102017107584A1 (de) * 2017-04-07 2018-10-11 Rwe Power Aktiengesellschaft Zinkdosierung zur Dekontamination von Leichtwasserreaktoren

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450861A (en) * 1945-04-16 1948-10-05 Dow Chemical Co Composition for descaling ferrous metal
US3054746A (en) * 1959-05-06 1962-09-18 Radiation Applic Inc Separation of dissimilar metal ions
NL155315B (nl) * 1964-06-09 1977-12-15 Ver Kunstmestfabriekn Mekog Al Werkwijze voor het reinigen van ijzeren of stalen, inwendige oppervlakken van industriele apparatuur
US3297580A (en) * 1964-06-17 1967-01-10 Edgar C Pitzer Neutral metal cleaning compositions containing hydrazine and a polycarboxylamino acid
US3664870A (en) * 1969-10-29 1972-05-23 Nalco Chemical Co Removal and separation of metallic oxide scale
US3773465A (en) * 1970-10-28 1973-11-20 Halliburton Co Inhibited treating acid
US3873362A (en) * 1973-05-29 1975-03-25 Halliburton Co Process for cleaning radioactively contaminated metal surfaces
US4116863A (en) * 1976-03-31 1978-09-26 Commissariat A L'energie Atomique Method of decontamination of radioactive effluents
CH619807A5 (de) * 1976-04-07 1980-10-15 Foerderung Forschung Gmbh
EP0032416B2 (de) * 1980-01-08 1987-06-16 Central Electricity Generating Board Verfahren zum Entfernen von Ablagerungen
EP0107297A3 (de) * 1982-09-08 1985-06-19 United Kingdom Atomic Energy Authority Korrosionsschutzverfahren

Also Published As

Publication number Publication date
GB2085215A (en) 1982-04-21
JPH0145600B2 (de) 1989-10-04
ATE9719T1 (de) 1984-10-15
US4470951A (en) 1984-09-11
EP0046029B1 (de) 1984-10-03
EP0046029A1 (de) 1982-02-17
JPS5754898A (en) 1982-04-01
US4731124A (en) 1988-03-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: NUCLEAR ELECTRIC PLC, BARNWOOD, GLOUCESTER, GB

8328 Change in the person/name/address of the agent

Free format text: MOLL, W., DIPL.-PHYS. DR.RER.NAT. GLAWE, U., DIPL.-PHYS. DR.RER.NAT., 8000 MUENCHEN DELFS, K., DIPL.-ING. MENGDEHL, U., DIPL.-CHEM. DR.RER.NAT. NIEBUHR, H., DIPL.-PHYS. DR.PHIL.HABIL., 2000 HAMBURG MERKAU, B., DIPL.-PHYS., PAT.-ANWAELTE, 8000 MUENCHEN