GB803541A - Improvements in acid inhibitors - Google Patents
Improvements in acid inhibitorsInfo
- Publication number
- GB803541A GB803541A GB36290/56A GB3629056A GB803541A GB 803541 A GB803541 A GB 803541A GB 36290/56 A GB36290/56 A GB 36290/56A GB 3629056 A GB3629056 A GB 3629056A GB 803541 A GB803541 A GB 803541A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inhibitors
- acids
- zinc
- aluminium
- sulphate
- 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
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic 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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Pickling baths contain as inhibitors at least one aromatic or araliphatic aldehyde and at least one basic aromatic N-compound or salt thereof. Pickling acids referred to are hydrochloric and sulphuric acid. Aldehydes specified are benzaldehyde, furfuraldehyde, phenylcetaldehyde and a - naphthaldehyde. N-compounds specified are nicotine sulphate, cinchonine sulphate, aniline and quinoline. Metals which may be cleaned include iron and steel, aluminium and zinc. The inhibitors may be added direct to the acids or may be made up as concentrates in a solvent. It is stated that the inhibitors may also be used to protect aluminium or zinc acid-containers from being attacked by the acids contained therein.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL803541X | 1956-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB803541A true GB803541A (en) | 1958-10-29 |
Family
ID=11057220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36290/56A Expired GB803541A (en) | 1956-05-06 | 1956-11-27 | Improvements in acid inhibitors |
Country Status (2)
Country | Link |
---|---|
US (1) | US2965577A (en) |
GB (1) | GB803541A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2204864A (en) * | 1987-04-29 | 1988-11-23 | Ciba Geigy Ag | Corrosion inhibition |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3098700A (en) * | 1961-10-12 | 1963-07-23 | Pure Oil Co | Method of controlling corrosion of ferrous metal due to pitting by addition of mineral acid |
US3325410A (en) * | 1962-10-03 | 1967-06-13 | Grace W R & Co | Means of inhibiting the corrosive action of sulfamic acid on zinc galvanize |
US3239466A (en) * | 1963-06-10 | 1966-03-08 | Dow Chemical Co | Powderless etching |
DE1209400B (en) * | 1963-09-14 | 1966-01-20 | Boehringer & Soehne Gmbh | Process for protecting galvanized iron against attack by strong acids |
US3274032A (en) * | 1963-12-20 | 1966-09-20 | Continental Oil Co | Protective coating |
US3453203A (en) * | 1966-04-08 | 1969-07-01 | Exxon Research Engineering Co | Corrosion inhibition of metal surfaces by aromatic aldehydes |
US3530059A (en) * | 1968-05-17 | 1970-09-22 | Exxon Research Engineering Co | Aryl-substituted aliphatic aldehydes as corrosion inhibitors |
US3537974A (en) * | 1968-07-02 | 1970-11-03 | Exxon Research Engineering Co | Alkoxy-substituted aromatic aldehydes as corrosion inhibitors |
US4212842A (en) * | 1975-03-24 | 1980-07-15 | Petrolite Corporation | Corrosion inhibition |
US4220550A (en) * | 1978-12-06 | 1980-09-02 | The Dow Chemical Company | Composition and method for removing sulfide-containing scale from metal surfaces |
US4637899A (en) * | 1984-01-30 | 1987-01-20 | Dowell Schlumberger Incorporated | Corrosion inhibitors for cleaning solutions |
US5169598A (en) * | 1991-05-29 | 1992-12-08 | Petrolite Corporation | Corrosion inhibition in highly acidic environments |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1771985A (en) * | 1928-10-05 | 1930-08-05 | Du Pont | Noncorrosive alcoholic solution |
US1923055A (en) * | 1931-12-19 | 1933-08-15 | Grasselli Chemical Co | Aldehydeamine cinchona bark alkaloid inhibitors |
US2049517A (en) * | 1934-06-06 | 1936-08-04 | American Chem Paint Co | Method of and material for inhibiting or retarding acid corrosion of ferrous metals |
US2450861A (en) * | 1945-04-16 | 1948-10-05 | Dow Chemical Co | Composition for descaling ferrous metal |
US2474179A (en) * | 1947-05-02 | 1949-06-21 | Dow Chemical Co | Acid cleaning composition |
-
1956
- 1956-11-27 GB GB36290/56A patent/GB803541A/en not_active Expired
-
1957
- 1957-02-01 US US637612A patent/US2965577A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2204864A (en) * | 1987-04-29 | 1988-11-23 | Ciba Geigy Ag | Corrosion inhibition |
Also Published As
Publication number | Publication date |
---|---|
US2965577A (en) | 1960-12-20 |
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