GB1449826A - Inhibition of corrosion - Google Patents
Inhibition of corrosionInfo
- Publication number
- GB1449826A GB1449826A GB1582973A GB1582973A GB1449826A GB 1449826 A GB1449826 A GB 1449826A GB 1582973 A GB1582973 A GB 1582973A GB 1582973 A GB1582973 A GB 1582973A GB 1449826 A GB1449826 A GB 1449826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inhibitor
- steel
- corrosion
- nitriles
- nitrile
- 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
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
Abstract
1449826 Corrosion inhibition; pre-treating steel IMPERIAL CHEMICAL INDUSTRIES Ltd 5 March 1974 [3 April 1973] 15829/73 Headings C7E and C7U Corrosion of mild or stainless steel by acidic compounds is inhibited by adding to the acidic compound an inhibitor selected from α-hydroxy- and α-carboxy-nitriles and the alkylene oxide adducts thereof, or by pre-treatment of the steel with said inhibitor, or by both methods. The nitriles are preferably conjugated; preferred alkylene oxides are ethylene and propylene oxides, of which 2 to 25 units may be added to the nitrile. The steel may be pre-treated with the inhibitor neat, as vapour, or as a solution in e.g. water, alcohols, acids, bases such as pyridine and quinoline or a nitrile; alternatively the inhibitor may be incorporated in paints, primers, wax, polish, or interlining and packing materials, or 0À005-10 wt. per cent of inhibitor may be added to acid in a pickling bath. Preferred inhibitors are listed, as are organic and inorganic acids whose corrosive effect is inhibited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1582973A GB1449826A (en) | 1973-04-03 | 1973-04-03 | Inhibition of corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1582973A GB1449826A (en) | 1973-04-03 | 1973-04-03 | Inhibition of corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1449826A true GB1449826A (en) | 1976-09-15 |
Family
ID=10066286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1582973A Expired GB1449826A (en) | 1973-04-03 | 1973-04-03 | Inhibition of corrosion |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1449826A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264141A (en) * | 1992-06-08 | 1993-11-23 | Halliburton Company | Methods of reducing precipitation from acid solutions |
| US6315045B1 (en) | 2000-03-07 | 2001-11-13 | Halliburton Energy Services, Inc. | Methods and acidizing compositions for reducing metal surface corrosion and sulfide precipitation |
-
1973
- 1973-04-03 GB GB1582973A patent/GB1449826A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264141A (en) * | 1992-06-08 | 1993-11-23 | Halliburton Company | Methods of reducing precipitation from acid solutions |
| US6315045B1 (en) | 2000-03-07 | 2001-11-13 | Halliburton Energy Services, Inc. | Methods and acidizing compositions for reducing metal surface corrosion and sulfide precipitation |
| US6525011B2 (en) | 2000-03-07 | 2003-02-25 | Halliburton Energy Services, Inc. | Methods and acidizing compositions for reducing metal surface corrosion and sulfide precipitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |