ES8700786A1 - Metodo para descontaminar superficies metalicas en un siste-ma de refrigeracion de reactor nuclear - Google Patents
Metodo para descontaminar superficies metalicas en un siste-ma de refrigeracion de reactor nuclearInfo
- Publication number
- ES8700786A1 ES8700786A1 ES543571A ES543571A ES8700786A1 ES 8700786 A1 ES8700786 A1 ES 8700786A1 ES 543571 A ES543571 A ES 543571A ES 543571 A ES543571 A ES 543571A ES 8700786 A1 ES8700786 A1 ES 8700786A1
- Authority
- ES
- Spain
- Prior art keywords
- acid
- ceric acid
- ceric
- metal surfaces
- decontaminating
- 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
Links
- 239000002184 metal Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 abstract 10
- 150000007522 mineralic acids Chemical class 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (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)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
METODO DE DESCONTAMINACION DE SUPERFICIES METALICAS. COMPRENDE EL TRATAMIENTO DE LA SUPERFICIE METALICA CONTAMINADA CON UNA DISOLUCION ACUOSA, QUE CONTIENE DE 0,5 A 3% DE ACIDO TETRASULFATO CERICO, ACIDO HEXASULFAMATO CERICO, ACIDO HEXAPERCLORADO CERICO O DE SUS MEZCLAS Y DE 1 A 5% DEL MISMO ACIDO QUE FORMA EL COMPLEJO CERICO EMPLEADO, A UNA TEMPERATURA COMPRENDIDA ENTRE 70JC Y 200JC; SEGUIDO DEL TRATAMIENTO CON UNA DISOLUCION DE DESCONTAMINACION CONSTITUIDA POR UNA DISOLUCION DE DESCONTAMINACION CONSTITUIDA POR ACIDO ETILENDIAMINOTETRAACETICO O NITRILOTRIACETICO Y ACIDO CITRICO U OXALICO EN AGUA, A LA MISMA TEMPERATURA. TIENE APLICACIONES PARA DESCONTAMINAR DE SUSTANCIAS RADIACTIVAS LOS SISTEMAS DE REFRIGERACION DE CUALQUIER REACTOR NUCLEAR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61501884A | 1984-05-29 | 1984-05-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES543571A0 ES543571A0 (es) | 1986-10-16 |
ES8700786A1 true ES8700786A1 (es) | 1986-10-16 |
Family
ID=24463671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES543571A Expired ES8700786A1 (es) | 1984-05-29 | 1985-05-28 | Metodo para descontaminar superficies metalicas en un siste-ma de refrigeracion de reactor nuclear |
Country Status (7)
Country | Link |
---|---|
US (1) | US4657596A (es) |
EP (1) | EP0164937A1 (es) |
JP (1) | JPS613095A (es) |
KR (1) | KR850008506A (es) |
CA (1) | CA1230806A (es) |
ES (1) | ES8700786A1 (es) |
ZA (1) | ZA853531B (es) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0664191B2 (ja) * | 1986-05-07 | 1994-08-22 | 科学技術庁原子力局長 | 放射性クラッドを化学的に溶解するための汚染除去方法 |
US4747907A (en) * | 1986-10-29 | 1988-05-31 | International Business Machines Corporation | Metal etching process with etch rate enhancement |
SE465142B (sv) * | 1988-08-11 | 1991-07-29 | Studsvik Ab | Foerfarande foer dekontaminering av korrosionsprodukter i kaernkraftsreaktorer |
US4990301A (en) * | 1989-01-25 | 1991-02-05 | Continental Pet Technologies, Inc. | Method and apparatus for injection molding of multilayer preforms |
FR2666523A1 (fr) * | 1990-09-12 | 1992-03-13 | Framatome Sa | Appareil de travail au laser, notamment pour la decontamination d'une conduite d'un reacteur nucleaire. |
US5213623A (en) * | 1991-04-05 | 1993-05-25 | Burtner Gerald G | Process for cleaning nitric acid absorption column coils |
FR2687005B1 (fr) * | 1992-02-03 | 1994-10-21 | Framatome Sa | Procede et installation de decontamination de la partie primaire d'un generateur de vapeur usage d'un reacteur nucleaire a eau ordinaire sous pression. |
FR2706217A1 (fr) * | 1993-06-08 | 1994-12-16 | Framatome Sa | Procédé de remise en état d'un échangeur de chaleur de centrale nucléaire, notamment d'un échangeur de chaleur de circuit auxiliaire de refroidissement d'un réacteur nucléaire à l'arrêt. |
US5489735A (en) * | 1994-01-24 | 1996-02-06 | D'muhala; Thomas F. | Decontamination composition for removing norms and method utilizing the same |
US5814204A (en) * | 1996-10-11 | 1998-09-29 | Corpex Technologies, Inc. | Electrolytic decontamination processes |
BE1011754A3 (fr) * | 1998-02-20 | 1999-12-07 | En Nucleaire Etabilissement D | Procede et installation de decontamination de surfaces metalliques. |
DE102017107037B3 (de) * | 2017-03-31 | 2018-02-22 | Areva Gmbh | Verfahren zur Rückgewinnung von Uran von mit Uranoxid kontaminierten Bauteilen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1047232A (es) * | 1963-07-12 | |||
US3549419A (en) * | 1965-10-19 | 1970-12-22 | Du Pont | Catalytic method for cleaning soiled oven surfaces |
US3664870A (en) * | 1969-10-29 | 1972-05-23 | Nalco Chemical Co | Removal and separation of metallic oxide scale |
CH619807A5 (es) * | 1976-04-07 | 1980-10-15 | Foerderung Forschung Gmbh |
-
1985
- 1985-05-09 ZA ZA853531A patent/ZA853531B/xx unknown
- 1985-05-09 CA CA000481173A patent/CA1230806A/en not_active Expired
- 1985-05-21 EP EP85303565A patent/EP0164937A1/en not_active Withdrawn
- 1985-05-28 KR KR1019850003672A patent/KR850008506A/ko not_active Application Discontinuation
- 1985-05-28 JP JP60113327A patent/JPS613095A/ja active Granted
- 1985-05-28 ES ES543571A patent/ES8700786A1/es not_active Expired
- 1985-11-26 US US06/802,132 patent/US4657596A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES543571A0 (es) | 1986-10-16 |
US4657596A (en) | 1987-04-14 |
JPH0310920B2 (es) | 1991-02-14 |
EP0164937A1 (en) | 1985-12-18 |
JPS613095A (ja) | 1986-01-09 |
CA1230806A (en) | 1987-12-29 |
ZA853531B (en) | 1985-12-24 |
KR850008506A (ko) | 1985-12-18 |
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