GB1093135A - Removal of plated copper from ferrous surfaces and passivation of ferrous surfaces - Google Patents
Removal of plated copper from ferrous surfaces and passivation of ferrous surfacesInfo
- Publication number
- GB1093135A GB1093135A GB3231865A GB3231865A GB1093135A GB 1093135 A GB1093135 A GB 1093135A GB 3231865 A GB3231865 A GB 3231865A GB 3231865 A GB3231865 A GB 3231865A GB 1093135 A GB1093135 A GB 1093135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferrous surfaces
- solution
- ferrous
- ammonia
- passivation
- 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
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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/44—Compositions for etching metallic material from a metallic material substrate of different composition
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
An aqueous alkaline solution for removing copper from and passivating ferrous metal surfaces, e.g. boiler tubes comprises a ferric or ferrous chelate of an amino - or polyamine polyacetic or polypropionic acid salt of one of the group consisting of ammonia, an aliphatic amine or a hydroxy aliphatic amine. The action takes place in the presence of an oxidizing agent which may be hydrogen peroxide or nitrites, permanganates, persulphates or perchlorates of ammonia or alkali metals or a gas, e.g. nitrogen tetraoxide, oxygen or air, which is bubbled through the solution. The solution may also contain an inhibitor, e.g. thioethylamine
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38748164A | 1964-08-04 | 1964-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1093135A true GB1093135A (en) | 1967-11-29 |
Family
ID=23530057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3231865A Expired GB1093135A (en) | 1964-08-04 | 1965-07-28 | Removal of plated copper from ferrous surfaces and passivation of ferrous surfaces |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE667840A (en) |
DE (1) | DE1546116C3 (en) |
GB (1) | GB1093135A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3135153A1 (en) * | 1981-09-04 | 1983-03-24 | Bodo Dr.med. 8011 Vaterstetten Plötze | "CLEANER FOR FIREARMS RIFLE" |
US5587025A (en) * | 1995-03-22 | 1996-12-24 | Framatome Technologies, Inc. | Nuclear steam generator chemical cleaning passivation solution |
-
1965
- 1965-07-28 GB GB3231865A patent/GB1093135A/en not_active Expired
- 1965-08-03 DE DE19651546116 patent/DE1546116C3/en not_active Expired
- 1965-08-03 BE BE667840D patent/BE667840A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE667840A (en) | 1966-02-03 |
DE1546116B2 (en) | 1974-09-05 |
DE1546116A1 (en) | 1970-03-26 |
DE1546116C3 (en) | 1975-05-15 |
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