KR960700360A - METHOD FOR DISSOLVING OXIDES DEPOSITED ON A METAL SUBSTRATE - Google Patents
METHOD FOR DISSOLVING OXIDES DEPOSITED ON A METAL SUBSTRATEInfo
- Publication number
- KR960700360A KR960700360A KR1019950702622A KR19950702622A KR960700360A KR 960700360 A KR960700360 A KR 960700360A KR 1019950702622 A KR1019950702622 A KR 1019950702622A KR 19950702622 A KR19950702622 A KR 19950702622A KR 960700360 A KR960700360 A KR 960700360A
- Authority
- KR
- South Korea
- Prior art keywords
- oxidation
- nitric acid
- solution
- solution comprises
- metal substrate
- Prior art date
Links
Landscapes
- Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
본 발명은 금속 기판상에 점착된 산화물을 용해하는 방법에 관한 것이다.The present invention relates to a method of dissolving an oxide deposited on a metal substrate.
본 발명의 목적은 방사능 물질의 점착에 의해 오염된 기판을, 심각한 에칭작용이 없이 그 오염을 제거하는 것이다.It is an object of the present invention to remove the contamination of a substrate contaminated by the adhesion of radioactive material without serious etching.
이러한 목적은 아래 사이클을 적어도 1회 포함하는 방법에 의해 달성된다.This object is achieved by a method comprising at least one of the following cycles.
a)80 내지 85℃ 사이의 온도에서, 적어도 과망간산염을 포함한 용액을 사용해 산화작용을 수행하는 단계;및 b)2 이하의 pH 및 80 내지 85℃ 사이의 온동서, 환원제 및 질산을 혼합한 용액으로써 환원작용을 수행하는 단계.a) performing oxidation using a solution containing at least permanganate at a temperature between 80 and 85 ° C .; and b) a mixture of a pH of less than or equal to 2 and a temperature of between 80 and 85 ° C., a reducing agent and nitric acid. Performing a reduction reaction.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
Claims (16)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR92/15722 | 1992-12-24 | ||
FR9215722 | 1992-12-24 | ||
FR9215722A FR2699936B1 (en) | 1992-12-24 | 1992-12-24 | Process for dissolving oxides deposited on a metal substrate. |
PCT/FR1993/001298 WO1994015001A2 (en) | 1992-12-24 | 1993-12-23 | Method for dissolving oxides deposited on a metal substrate |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960700360A true KR960700360A (en) | 1996-01-20 |
KR100313971B1 KR100313971B1 (en) | 2002-02-28 |
Family
ID=57941095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950702622A KR100313971B1 (en) | 1992-12-24 | 1993-12-23 | Method for dissolving oxide adhered on metal plate |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR100313971B1 (en) |
TW (1) | TW366369B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4481040A (en) * | 1981-06-17 | 1984-11-06 | Central Electricity Generating Board Of Sudbury House | Process for the chemical dissolution of oxide deposits |
-
1993
- 1993-12-23 KR KR1019950702622A patent/KR100313971B1/en not_active IP Right Cessation
-
1994
- 1994-03-28 TW TW083102704A patent/TW366369B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100313971B1 (en) | 2002-02-28 |
TW366369B (en) | 1999-08-11 |
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