JPS57108273A - Nitric acid pickling solution for metal - Google Patents
Nitric acid pickling solution for metalInfo
- Publication number
- JPS57108273A JPS57108273A JP18293980A JP18293980A JPS57108273A JP S57108273 A JPS57108273 A JP S57108273A JP 18293980 A JP18293980 A JP 18293980A JP 18293980 A JP18293980 A JP 18293980A JP S57108273 A JPS57108273 A JP S57108273A
- Authority
- JP
- Japan
- Prior art keywords
- nitric acid
- metal
- pickling soln
- sulfamic acid
- acid pickling
- 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.)
- Pending
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
- C23G1/08—Iron or steel
- C23G1/085—Iron or steel solutions containing HNO3
Landscapes
- Chemical & Material Sciences (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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
PURPOSE:To prevent the generation of gaseous NOx and the formation of smut and to discharge a used pickling soln. without causing trouble by adding specified amounts of sulfamic acid and H2O2. CONSTITUTION:To a nitric acid pickling soln. for metal contg. 3-30wt% nitric acid are added 0.6-10wt% sulfamic acid and 0.01-10wt% H2O2. The preferred molar ratio of H2O2 to sulfamic acid is (2-4):1. When steel products are pickled with the resulting pickling soln., gaseous NOx are not generated, and smut does not remain on the surfaces of the steel products. The used pickling soln. is discharged without requiring an additional treating process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18293980A JPS57108273A (en) | 1980-12-25 | 1980-12-25 | Nitric acid pickling solution for metal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18293980A JPS57108273A (en) | 1980-12-25 | 1980-12-25 | Nitric acid pickling solution for metal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57108273A true JPS57108273A (en) | 1982-07-06 |
Family
ID=16127008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18293980A Pending JPS57108273A (en) | 1980-12-25 | 1980-12-25 | Nitric acid pickling solution for metal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57108273A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449646A2 (en) * | 1990-03-30 | 1991-10-02 | Rem Chemicals, Inc. | Composition and method for surface refinement of titanium and nickel |
JP2008285710A (en) * | 2007-05-16 | 2008-11-27 | Daido Steel Co Ltd | Pickling method and pickling device |
JP2009002975A (en) * | 2007-06-19 | 2009-01-08 | Daiichi Engei Kk | Commercial product sample display plate |
-
1980
- 1980-12-25 JP JP18293980A patent/JPS57108273A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449646A2 (en) * | 1990-03-30 | 1991-10-02 | Rem Chemicals, Inc. | Composition and method for surface refinement of titanium and nickel |
JP2008285710A (en) * | 2007-05-16 | 2008-11-27 | Daido Steel Co Ltd | Pickling method and pickling device |
JP2009002975A (en) * | 2007-06-19 | 2009-01-08 | Daiichi Engei Kk | Commercial product sample display plate |
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