ATE18822T1 - Verfahren zur chemischen zersetzung von oxydniederschlaegen. - Google Patents
Verfahren zur chemischen zersetzung von oxydniederschlaegen.Info
- Publication number
- ATE18822T1 ATE18822T1 AT82303012T AT82303012T ATE18822T1 AT E18822 T1 ATE18822 T1 AT E18822T1 AT 82303012 T AT82303012 T AT 82303012T AT 82303012 T AT82303012 T AT 82303012T AT E18822 T1 ATE18822 T1 AT E18822T1
- Authority
- AT
- Austria
- Prior art keywords
- oxide
- chromium
- permanganate
- oxide deposits
- processes
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000002144 chemical decomposition reaction Methods 0.000 title 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 229910052804 chromium Inorganic materials 0.000 abstract 3
- 239000011651 chromium Substances 0.000 abstract 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- 238000009390 chemical decontamination Methods 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 230000000536 complexating effect Effects 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000000126 substance Substances 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Detergent Compositions (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8118680 | 1981-06-17 | ||
EP82303012A EP0071336B1 (de) | 1981-06-17 | 1982-06-10 | Verfahren zur chemischen Zersetzung von Oxydniederschlägen |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE18822T1 true ATE18822T1 (de) | 1986-04-15 |
Family
ID=10522582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT82303012T ATE18822T1 (de) | 1981-06-17 | 1982-06-10 | Verfahren zur chemischen zersetzung von oxydniederschlaegen. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4481040A (de) |
EP (1) | EP0071336B1 (de) |
JP (1) | JPS5848900A (de) |
AT (1) | ATE18822T1 (de) |
DE (1) | DE3270078D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102331B3 (de) * | 2013-03-08 | 2014-07-03 | Horst-Otto Bertholdt | Verfahren zum Abbau einer Oxidschicht |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3413868A1 (de) * | 1984-04-12 | 1985-10-17 | Kraftwerk Union AG, 4330 Mülheim | Verfahren zur chemischen dekontamination von metallischen bauteilen von kernreaktoranlagen |
BE904139A (nl) * | 1986-01-30 | 1986-05-15 | Lemmens Godfried | Werkwijze voor de decontaminatie van radioaktief besmette materialen. |
BE904936A (nl) * | 1986-06-17 | 1986-10-16 | Lemmens Godfried | Werkwijze voor de decontaminatie van radioaktief besmette materialen. |
US4789406A (en) * | 1986-08-20 | 1988-12-06 | Betz Laboratories, Inc. | Method and compositions for penetrating and removing accumulated corrosion products and deposits from metal surfaces |
CH673545A5 (de) * | 1987-10-02 | 1990-03-15 | Industrieorientierte Forsch | |
US4913849A (en) * | 1988-07-07 | 1990-04-03 | Aamir Husain | Process for pretreatment of chromium-rich oxide surfaces prior to decontamination |
FR2641895A1 (fr) * | 1989-01-19 | 1990-07-20 | Commissariat Energie Atomique | Procede de decontamination radioactive de surface metallique, notamment de portions de circuits primaires de reacteurs nucleaires refroidis a l'eau |
FR2648946B1 (fr) * | 1989-06-27 | 1994-02-04 | Electricite De France | Procede de dissolution d'oxyde depose sur un substrat metallique et son application a la decontamination |
US5037483A (en) * | 1990-01-30 | 1991-08-06 | Nalco Chemical Company | On-line iron clean-up |
FR2699936B1 (fr) * | 1992-12-24 | 1995-01-27 | Electricite De France | Procédé de dissolution d'oxydes déposés sur un substrat métallique. |
KR100313971B1 (ko) * | 1992-12-24 | 2002-02-28 | 프로리크 로베르 | 금속기판상에점착된산화물을용해하는방법 |
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 |
FR2817492B1 (fr) * | 2000-12-04 | 2003-07-18 | Commissariat Energie Atomique | Procede de dissolution des solides formes dans une installation nucleaire |
US6454870B1 (en) * | 2001-11-26 | 2002-09-24 | General Electric Co. | Chemical removal of a chromium oxide coating from an article |
DE102009047524A1 (de) * | 2009-12-04 | 2011-06-09 | Areva Np Gmbh | Verfahren zur Oberflächen-Dekontamination |
WO2013041595A1 (de) | 2011-09-20 | 2013-03-28 | Nis Ingenieurgesellschaft Mbh | Verfahren zum abbau einer oxidschicht |
JP6049403B2 (ja) * | 2012-11-02 | 2016-12-21 | 三菱重工業株式会社 | 除染廃液処理方法 |
JP6049404B2 (ja) * | 2012-11-02 | 2016-12-21 | 三菱重工業株式会社 | 除染廃液処理方法 |
KR101523763B1 (ko) * | 2013-06-19 | 2015-06-01 | 한국원자력연구원 | 금속 표면 고착성 방사능 오염 산화막 제거를 위한 산화 제염제 및 이를 이용한 산화 제염방법 |
JP6591225B2 (ja) * | 2015-08-03 | 2019-10-16 | 株式会社東芝 | 除染方法 |
EP3299497A1 (de) | 2016-09-27 | 2018-03-28 | ATOTECH Deutschland GmbH | Verfahren zur behandlung einer chromoberfläche |
KR102378652B1 (ko) | 2017-02-14 | 2022-03-28 | 짐펠캄프 니스 인제니어게젤샤프트 엠베하 | 방사성핵종 함유 산화물 층의 분해 방법 |
HUE053163T2 (hu) * | 2018-07-23 | 2021-06-28 | Technochim Sa | Eljárás rúzs eltávolítására rozsdamentes acélról |
EP4269657A1 (de) * | 2022-04-29 | 2023-11-01 | Technochim SA | Verfahren zum lösen von metalloxiden aus life-science-ausrüstung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3080262A (en) * | 1959-04-07 | 1963-03-05 | Purex Corp | Process for removal of radioactive contaminants from surfaces |
US3013909A (en) * | 1960-03-31 | 1961-12-19 | Guyon P Pancer | Method of chemical decontamination of stainless steel nuclear facilities |
US3496017A (en) * | 1966-04-28 | 1970-02-17 | Atomic Energy Commission | Method and composition for decontamination of stainless steel surfaces |
US3615817A (en) * | 1969-02-04 | 1971-10-26 | Atomic Energy Commission | Method of decontaminating radioactive metal surfaces |
US3664870A (en) * | 1969-10-29 | 1972-05-23 | Nalco Chemical Co | Removal and separation of metallic oxide scale |
US3873362A (en) * | 1973-05-29 | 1975-03-25 | Halliburton Co | Process for cleaning radioactively contaminated metal surfaces |
US4226640A (en) * | 1978-10-26 | 1980-10-07 | Kraftwerk Union Aktiengesellschaft | Method for the chemical decontamination of nuclear reactor components |
US4287002A (en) * | 1979-04-09 | 1981-09-01 | Atomic Energy Of Canada Ltd. | Nuclear reactor decontamination |
CA1136398A (en) * | 1979-12-10 | 1982-11-30 | William A. Seddon | Decontaminating reagents for radioactive systems |
-
1982
- 1982-06-10 US US06/387,094 patent/US4481040A/en not_active Expired - Lifetime
- 1982-06-10 EP EP82303012A patent/EP0071336B1/de not_active Expired
- 1982-06-10 DE DE8282303012T patent/DE3270078D1/de not_active Expired
- 1982-06-10 AT AT82303012T patent/ATE18822T1/de not_active IP Right Cessation
- 1982-06-14 JP JP57101934A patent/JPS5848900A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013102331B3 (de) * | 2013-03-08 | 2014-07-03 | Horst-Otto Bertholdt | Verfahren zum Abbau einer Oxidschicht |
Also Published As
Publication number | Publication date |
---|---|
JPS5848900A (ja) | 1983-03-22 |
JPH0153440B2 (de) | 1989-11-14 |
EP0071336A1 (de) | 1983-02-09 |
US4481040A (en) | 1984-11-06 |
DE3270078D1 (en) | 1986-04-30 |
EP0071336B1 (de) | 1986-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
EEIH | Change in the person of patent owner | ||
EELA | Cancelled due to lapse of time |