GB802894A - Improvements in or relating to a method of and compositions for treating concentrated acids to prevent corrosion of metals in contact therewith - Google Patents
Improvements in or relating to a method of and compositions for treating concentrated acids to prevent corrosion of metals in contact therewithInfo
- Publication number
- GB802894A GB802894A GB20270/56A GB2027056A GB802894A GB 802894 A GB802894 A GB 802894A GB 20270/56 A GB20270/56 A GB 20270/56A GB 2027056 A GB2027056 A GB 2027056A GB 802894 A GB802894 A GB 802894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- per cent
- metals
- relating
- compositions
- 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
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
802,894. Preventing corrosion. BERNARD, M. L. J. June 29, 1956 [Feb. 1, 1956], No 20270/56. Class 123(1) Corrosion of containers, pipes, &c., made of ferrous metal, light alloys or zinc by concentrated acids such as nitric, sulphuric of hydrochloric acids is prevented by admixing a small proportion of a substance containing phosphate ions with the acid, e.g. orthophosphoric acid, the phosphates of iron, manganese, zinc or sodium or an organic phosphate. From 0.25 to 2 per cent of a tensio-active agent may be mixed with the phosphate substance, particularly when the metal has not been subjected to a preliminary phosphating treatment. In an example, concentrated nitric acid is inhibited by the addition of 0.5 per cent by weight of orthophosphoric acid and 1 per cent by weight of nitrated chaulmoogric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1098783X | 1956-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802894A true GB802894A (en) | 1958-10-15 |
Family
ID=9619390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20270/56A Expired GB802894A (en) | 1956-02-01 | 1956-06-29 | Improvements in or relating to a method of and compositions for treating concentrated acids to prevent corrosion of metals in contact therewith |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1098783B (en) |
| FR (1) | FR1148779A (en) |
| GB (1) | GB802894A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0029418A1 (en) * | 1979-11-06 | 1981-05-27 | Boliden Aktiebolag | A method of acid pickling iron and iron alloys and a composition for carrying out the method |
| EP0424340A2 (en) * | 1989-10-19 | 1991-04-24 | Lars Ake Hilmer Hakansson | A method for pickling iron and steel surfaces |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE824285C (en) * | 1948-10-02 | 1951-12-10 | Blendax Fabrik R Schneider & C | Process for preventing the corrosion of aluminum metal by ointments and pasty masses |
-
1956
- 1956-02-01 FR FR1148779D patent/FR1148779A/en not_active Expired
- 1956-06-29 GB GB20270/56A patent/GB802894A/en not_active Expired
- 1956-07-07 DE DEB40962A patent/DE1098783B/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0029418A1 (en) * | 1979-11-06 | 1981-05-27 | Boliden Aktiebolag | A method of acid pickling iron and iron alloys and a composition for carrying out the method |
| EP0424340A2 (en) * | 1989-10-19 | 1991-04-24 | Lars Ake Hilmer Hakansson | A method for pickling iron and steel surfaces |
| EP0424340A3 (en) * | 1989-10-19 | 1991-09-18 | Lars Ake Hilmer Hakansson | A method for pickling iron and steel surfaces |
| US5108544A (en) * | 1989-10-19 | 1992-04-28 | Hakansson Lars A H | Method for pickling iron and steel surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1148779A (en) | 1957-12-13 |
| DE1098783B (en) | 1961-02-02 |
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