ES347796A1 - Inhibition of corrosion of metallic surfaces - Google Patents

Inhibition of corrosion of metallic surfaces

Info

Publication number
ES347796A1
ES347796A1 ES347796A ES347796A ES347796A1 ES 347796 A1 ES347796 A1 ES 347796A1 ES 347796 A ES347796 A ES 347796A ES 347796 A ES347796 A ES 347796A ES 347796 A1 ES347796 A1 ES 347796A1
Authority
ES
Spain
Prior art keywords
acid
iodine
metal
corrosion
steel
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
ES347796A
Other languages
Spanish (es)
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.)
DIVERGEN ESPANOLA S A
Original Assignee
DIVERGEN ESPANOLA S A
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 DIVERGEN ESPANOLA S A filed Critical DIVERGEN ESPANOLA S A
Publication of ES347796A1 publication Critical patent/ES347796A1/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
    • 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

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

Corrosion of metal, such as stainless steel, mild steel, aluminium, zinc or manganese, by acid such as phosphoric acid, sulphamic acid, H2 SO4 HCl or HNO3 is inhibited by treating it with iodine in the presence of the acid. The iodine may be aqueous or alcoholic solution, and may be accompanied by or combined with a surface-active agent, such as di-N substituted polyalkoxy condensates of tertiary amines or of amides, alkyl ether sulphates, nonyl phenol ethylene oxide condensates, ampholyticsurface-active agents, alkanolamines phosphate esters and alkylamines. The concentration of iodine in solution may be 0À0001 to 1À0% w/w and that of the surface-active agent 0À002 to 10% w/w. Iodine may be added to an acid bath, such as an H2 SO4 pickling bath used to remove oxide scale from steel, or to acid employed to descale the interior of ferrous metal vessels, and metal which is to be exposed to a corrosive atmosphere may be treated with iodine and acid.
ES347796A 1966-11-30 1967-11-29 Inhibition of corrosion of metallic surfaces Expired ES347796A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5367766A GB1213792A (en) 1966-11-30 1966-11-30 Inhibition of corrosion of metallic surfaces

Publications (1)

Publication Number Publication Date
ES347796A1 true ES347796A1 (en) 1969-03-16

Family

ID=10468622

Family Applications (1)

Application Number Title Priority Date Filing Date
ES347796A Expired ES347796A1 (en) 1966-11-30 1967-11-29 Inhibition of corrosion of metallic surfaces

Country Status (6)

Country Link
BE (1) BE707298A (en)
CH (1) CH506633A (en)
DE (1) DE1621447A1 (en)
ES (1) ES347796A1 (en)
FR (1) FR1557060A (en)
GB (1) GB1213792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118440555A (en) * 2024-05-29 2024-08-06 广州双隆文化发展有限公司 Ductile anti-color-change coating

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116579B (en) * 1982-01-07 1985-08-29 Albright & Wilson Composition and method for cleaning hydrocarbon oil from hard surfaces
US5543388A (en) * 1993-08-05 1996-08-06 Exxon Chemical Patents Inc. Intensified corrosion inhibitor and method of use
CN104630795A (en) * 2015-01-29 2015-05-20 无锡昊瑜节能环保设备有限公司 Metal cleaner
CN106435606B (en) * 2016-10-09 2019-03-29 广西大学 A kind of hydrochloric acid pickling corrosion inhibitor composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118440555A (en) * 2024-05-29 2024-08-06 广州双隆文化发展有限公司 Ductile anti-color-change coating

Also Published As

Publication number Publication date
DE1621447A1 (en) 1971-05-13
BE707298A (en) 1968-05-30
CH506633A (en) 1971-04-30
GB1213792A (en) 1970-11-25
FR1557060A (en) 1969-02-14

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