CA2235976A1 - Method of treating a metal - Google Patents

Method of treating a metal

Info

Publication number
CA2235976A1
CA2235976A1 CA002235976A CA2235976A CA2235976A1 CA 2235976 A1 CA2235976 A1 CA 2235976A1 CA 002235976 A CA002235976 A CA 002235976A CA 2235976 A CA2235976 A CA 2235976A CA 2235976 A1 CA2235976 A1 CA 2235976A1
Authority
CA
Canada
Prior art keywords
metal
supplied
aqueous solution
treating
hydrogen peroxide
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.)
Granted
Application number
CA002235976A
Other languages
French (fr)
Other versions
CA2235976C (en
Inventor
Troy Berglind
Arne Frestad
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.)
Akzo Nobel NV
Original Assignee
Akzo Nobel NV
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 Akzo Nobel NV filed Critical Akzo Nobel NV
Publication of CA2235976A1 publication Critical patent/CA2235976A1/en
Application granted granted Critical
Publication of CA2235976C publication Critical patent/CA2235976C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C23G1/08—Iron or steel
    • C23G1/085—Iron or steel solutions containing HNO3
    • 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
    • C23G1/10—Other heavy metals
    • C23G1/103—Other heavy metals copper or alloys of copper

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)
  • Chemical Treatment Of Metals (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

The invention relates to a method of pickling or surface treating a metal in an aqueous solution containing nitric acid wherein hydrogen peroxide is supplied to decrease the formation of nitrous fumes. At least a portion of the hydrogen peroxide is supplied by spraying or flushing an aqueous solution thereof directly on the metal through one or several separate nozzles (18a, 18b, 19a, 19b).
CA002235976A 1997-05-05 1998-04-28 Method of treating a metal Expired - Fee Related CA2235976C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97850075 1997-05-05
EP97850075.9 1997-05-05

Publications (2)

Publication Number Publication Date
CA2235976A1 true CA2235976A1 (en) 1998-11-05
CA2235976C CA2235976C (en) 2001-06-05

Family

ID=8230959

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235976A Expired - Fee Related CA2235976C (en) 1997-05-05 1998-04-28 Method of treating a metal

Country Status (6)

Country Link
JP (1) JPH10317181A (en)
KR (1) KR100292792B1 (en)
BR (1) BR9801536A (en)
CA (1) CA2235976C (en)
RU (1) RU2131484C1 (en)
TW (1) TW373035B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112831785A (en) * 2020-12-28 2021-05-25 江苏兴达钢帘线股份有限公司 Iron-based micro monofilament sharpening liquid and using method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190089705A (en) * 2018-01-23 2019-07-31 피에스테크놀러지(주) Process of cleaning metal for reducing nox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112831785A (en) * 2020-12-28 2021-05-25 江苏兴达钢帘线股份有限公司 Iron-based micro monofilament sharpening liquid and using method thereof

Also Published As

Publication number Publication date
BR9801536A (en) 1999-03-02
KR100292792B1 (en) 2001-11-26
KR19980086733A (en) 1998-12-05
CA2235976C (en) 2001-06-05
TW373035B (en) 1999-11-01
RU2131484C1 (en) 1999-06-10
JPH10317181A (en) 1998-12-02

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed