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GB803541A - Improvements in acid inhibitors - Google Patents

Improvements in acid inhibitors

Info

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
Application number
GB36290/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YECHESKIEL ISRAEL
Technion Research and Development Foundation Ltd
Original Assignee
YECHESKIEL ISRAEL
Technion Research and Development Foundation Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YECHESKIEL ISRAEL, Technion Research and Development Foundation Ltd filed Critical YECHESKIEL ISRAEL
Publication of GB803541A publication Critical patent/GB803541A/en
Expired legal-status Critical Current

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.
GB36290/56A 1956-05-06 1956-11-27 Improvements in acid inhibitors Expired GB803541A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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