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FR1602549A - Inhibiting aluminium in alkaline solutions using - Google Patents

Inhibiting aluminium in alkaline solutions using

Info

Publication number
FR1602549A
FR1602549A FR1602549DA FR1602549A FR 1602549 A FR1602549 A FR 1602549A FR 1602549D A FR1602549D A FR 1602549DA FR 1602549 A FR1602549 A FR 1602549A
Authority
FR
France
Prior art keywords
alkaline
alkali
aluminium
polyacrylic acids
solns
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1602549A publication Critical patent/FR1602549A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-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
    • C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/06Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly alkaline liquids
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/16Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions using inhibitors
    • C23G1/18Organic inhibitors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Lubricants (AREA)

Abstract

In a process for inhibiting aluminium in alkaline solns., one adds to the soln. polyacrylic acids with a specific viscosity of 0.07-0.90, or a water-soluble salt of such an acid. The attack of the alkaline solns on the aluminium is retarded. Formation of deposits and crusts, as occurs with the known alkali silicate inhibitors is avoided. The polyacrylic acids pref. have a viscosity of 0.09-0.20. The amt. used in 0.05-0.5 wt.% of the alkaline soln. Suitable salts are the sodium, potassium and ammonium salts of the polyacrylic acids. The alkaline solns. partic. contain NaOH or KOH, or alkali carbonates and alkali phosphates, alone or mixed with alkali hydroxide.
FR1602549D 1967-11-09 1968-11-08 Inhibiting aluminium in alkaline solutions using Expired FR1602549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1621470 1967-11-09

Publications (1)

Publication Number Publication Date
FR1602549A true FR1602549A (en) 1970-12-21

Family

ID=5682536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1602549D Expired FR1602549A (en) 1967-11-09 1968-11-08 Inhibiting aluminium in alkaline solutions using

Country Status (11)

Country Link
AT (1) AT281540B (en)
BE (1) BE723496A (en)
BR (1) BR6803796D0 (en)
CH (1) CH522748A (en)
DE (1) DE1621470C3 (en)
DK (1) DK121341B (en)
ES (1) ES359995A1 (en)
FI (1) FI46988C (en)
FR (1) FR1602549A (en)
NL (1) NL157664B (en)
SE (1) SE334084B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829114A (en) * 1955-05-04 1958-04-01 Universal Oil Prod Co Corrosion inhibitor
FR1246106A (en) * 1957-04-12 1960-11-18 Pechiney Prod Chimiques Sa Protection of metal surfaces
CA666119A (en) * 1960-02-02 1963-07-02 A. Wright William Liquid detergent composition

Also Published As

Publication number Publication date
FI46988C (en) 1973-08-10
SE334084B (en) 1971-04-05
FI46988B (en) 1973-05-02
BR6803796D0 (en) 1973-02-13
BE723496A (en) 1969-05-07
DE1621470A1 (en) 1971-05-13
DK121341B (en) 1971-10-04
AT281540B (en) 1970-05-25
CH522748A (en) 1972-06-30
DE1621470C3 (en) 1982-09-09
NL157664B (en) 1978-08-15
NL6814587A (en) 1969-05-13
ES359995A1 (en) 1970-06-16
DE1621470B2 (en) 1978-05-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse