JPS57185989A - Protecting method for stainless steel - Google Patents

Protecting method for stainless steel

Info

Publication number
JPS57185989A
JPS57185989A JP56067629A JP6762981A JPS57185989A JP S57185989 A JPS57185989 A JP S57185989A JP 56067629 A JP56067629 A JP 56067629A JP 6762981 A JP6762981 A JP 6762981A JP S57185989 A JPS57185989 A JP S57185989A
Authority
JP
Japan
Prior art keywords
stainless steel
acid
contg
chlorosulfonic
chlorosulfonic acid
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.)
Pending
Application number
JP56067629A
Other languages
Japanese (ja)
Inventor
Hirohisa Kajiyama
Masahiro Yamagami
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP56067629A priority Critical patent/JPS57185989A/en
Publication of JPS57185989A publication Critical patent/JPS57185989A/en
Pending 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
    • C23F11/04Inhibiting 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
    • 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
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/50Treatment of iron or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

PURPOSE:To effectively prevent the corrosion of stainless steel contacting with chlorosulfonic acid contg. free HCl by allowing nitric acid or nitrous acid radicals to exist in the chlorosulfonic acid. CONSTITUTION:In a system where stainless steel contacts with a highly corrosive acid contg. practically no water such as chlorosulfonic acid contg. free HCl, a very small amount of nitric acid or nitrous acid radicals is allowed to exist in the chlorosulfonic acid. Thus, the corrosion of the stainless steel is prevented, and the stainless steel can be protected.
JP56067629A 1981-05-07 1981-05-07 Protecting method for stainless steel Pending JPS57185989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067629A JPS57185989A (en) 1981-05-07 1981-05-07 Protecting method for stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067629A JPS57185989A (en) 1981-05-07 1981-05-07 Protecting method for stainless steel

Publications (1)

Publication Number Publication Date
JPS57185989A true JPS57185989A (en) 1982-11-16

Family

ID=13350459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067629A Pending JPS57185989A (en) 1981-05-07 1981-05-07 Protecting method for stainless steel

Country Status (1)

Country Link
JP (1) JPS57185989A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0931854A1 (en) * 1998-01-26 1999-07-28 Elf Atochem S.A. Corrosion inhibiting of stainless steel in organic sulphonic acid
JP2014218729A (en) * 2013-05-10 2014-11-20 東京電力株式会社 Stainless steel local corrosion suppressing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0931854A1 (en) * 1998-01-26 1999-07-28 Elf Atochem S.A. Corrosion inhibiting of stainless steel in organic sulphonic acid
US6120619A (en) * 1998-01-26 2000-09-19 Elf Atochem, S.A. Passivation of stainless steels in organosulphonic acid medium
JP2014218729A (en) * 2013-05-10 2014-11-20 東京電力株式会社 Stainless steel local corrosion suppressing method

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