GB375599A - Improvements in or relating to processes for pickling or cleaning iron or steel - Google Patents
Improvements in or relating to processes for pickling or cleaning iron or steelInfo
- Publication number
- GB375599A GB375599A GB2307731A GB2307731A GB375599A GB 375599 A GB375599 A GB 375599A GB 2307731 A GB2307731 A GB 2307731A GB 2307731 A GB2307731 A GB 2307731A GB 375599 A GB375599 A GB 375599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitric
- steels
- steel
- acid
- iron
- 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
- 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
-
- 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
Abstract
A solution for cleaning iron or steel or articles with an iron or steel surface comprises hydrogen peroxide and either nitric acid, hydrochloric acid, or a mixture of nitric acid and another pickling acid, e.g. a mixture of nitric and sulphuric acids or nitric and phosphoric acids. The temperature of the solution is kept at or below about 60 DEG F. The cleaning of high-carbon steels, chromium - containing rustless steels, and highly polished steels is referred to. The hydrogen peroxide acts as an inhibiting agent. Specifications 8667*/06, [Class 82, Metals and alloys], 28131/09, and 247,071, [both in Class 82 (ii), Washing granular &c.], are referred to.ALSO:Iron or steel or articles with an iron or steel surface are pickled in an aqueous solution of hydrogen peroxide and either nitric acid, hydrochloric acid, or a mixture of nitric acid and another pickling acid, e.g. a mixture of nitric and sulphuric acids or of nitric and phosphoric acids. The temperature of the solution is kept at or below about 60 DEG F. and the hydrogen peroxide acts as an inhibiting agent. The solutions are particularly applicable to the pickling of high-carbon steels, chromium-containing rustless steels, and highly polished steels to give a surface suitable for painting, enamelling, sherardizing, or a phosphating rust-proofing treatment. Specifications 8667/06, [Class 82, Metals and alloys], 28131/09, and 247,071, [both in Class 82 (ii), Washing granular &c.], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2307731A GB375599A (en) | 1931-08-15 | 1931-08-15 | Improvements in or relating to processes for pickling or cleaning iron or steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2307731A GB375599A (en) | 1931-08-15 | 1931-08-15 | Improvements in or relating to processes for pickling or cleaning iron or steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375599A true GB375599A (en) | 1932-06-30 |
Family
ID=10189745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2307731A Expired GB375599A (en) | 1931-08-15 | 1931-08-15 | Improvements in or relating to processes for pickling or cleaning iron or steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB375599A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740432C (en) * | 1938-10-14 | 1943-10-20 | Schering Ag | Process for pickling iron and iron alloys |
| US2965521A (en) * | 1954-06-10 | 1960-12-20 | Crucible Steel Co America | Metal pickling solutions and methods |
| DE3222532A1 (en) * | 1982-06-16 | 1983-12-22 | Arno 5042 Erftstadt Kuhlmann | Process and means for the acidic etching of austenitic stainless steels |
| GB2200136A (en) * | 1987-01-12 | 1988-07-27 | Nihon Parkerizing | Cleaning of aluminium surfaces |
| EP0885985A1 (en) * | 1997-05-05 | 1998-12-23 | Akzo Nobel N.V. | Method of treating a metal |
| US5958147A (en) * | 1997-05-05 | 1999-09-28 | Akzo Nobel N.V. | Method of treating a metal |
-
1931
- 1931-08-15 GB GB2307731A patent/GB375599A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE740432C (en) * | 1938-10-14 | 1943-10-20 | Schering Ag | Process for pickling iron and iron alloys |
| US2965521A (en) * | 1954-06-10 | 1960-12-20 | Crucible Steel Co America | Metal pickling solutions and methods |
| DE3222532A1 (en) * | 1982-06-16 | 1983-12-22 | Arno 5042 Erftstadt Kuhlmann | Process and means for the acidic etching of austenitic stainless steels |
| GB2200136A (en) * | 1987-01-12 | 1988-07-27 | Nihon Parkerizing | Cleaning of aluminium surfaces |
| GB2200136B (en) * | 1987-01-12 | 1991-05-22 | Nihon Parkerizing | Cleaning of aluminium surfaces |
| EP0885985A1 (en) * | 1997-05-05 | 1998-12-23 | Akzo Nobel N.V. | Method of treating a metal |
| US5958147A (en) * | 1997-05-05 | 1999-09-28 | Akzo Nobel N.V. | Method of treating a metal |
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