ATE324954T1 - METHOD FOR REDUCING THE CORROSIVITY OF COOLING OR PROCESS WATER - Google Patents

METHOD FOR REDUCING THE CORROSIVITY OF COOLING OR PROCESS WATER

Info

Publication number
ATE324954T1
ATE324954T1 AT03735588T AT03735588T ATE324954T1 AT E324954 T1 ATE324954 T1 AT E324954T1 AT 03735588 T AT03735588 T AT 03735588T AT 03735588 T AT03735588 T AT 03735588T AT E324954 T1 ATE324954 T1 AT E324954T1
Authority
AT
Austria
Prior art keywords
cooling
process water
corrosivity
reducing
water
Prior art date
Application number
AT03735588T
Other languages
German (de)
Inventor
Wolfgang Hater
Ulrich Kiedrowicz
Gerd Grelewitz
Original Assignee
Henkel Kgaa
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 Henkel Kgaa filed Critical Henkel Kgaa
Application granted granted Critical
Publication of ATE324954T1 publication Critical patent/ATE324954T1/en

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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/34—Chemical 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 containing fluorides or complex fluorides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1245—Accessories for subsequent treating or working cast stock in situ for cooling using specific cooling agents
    • 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/48—Chemical 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
    • C23C22/56—Treatment of aluminium or alloys based thereon
    • 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/68—Chemical 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 solutions with pH between 6 and 8

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

The invention relates to a method for reducing the corrosivity of cooling or process water, during which the pH value is lowered by introducing acids. The inventive method is characterized in that at least one water-soluble salt having a buffering effect is metered to the cooling water or process water. This preferably ensues either proportionally with regard to quantity or according to the measured value of a characteristic control value. The method can be applied to continuous flow systems or to circulation systems and, in particular, can be used in continuous casting installations utilized in the steel industry.
AT03735588T 2002-06-17 2003-06-10 METHOD FOR REDUCING THE CORROSIVITY OF COOLING OR PROCESS WATER ATE324954T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10227040A DE10227040A1 (en) 2002-06-17 2002-06-17 Process for reducing the corrosiveness of cooling or process water

Publications (1)

Publication Number Publication Date
ATE324954T1 true ATE324954T1 (en) 2006-06-15

Family

ID=29594595

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03735588T ATE324954T1 (en) 2002-06-17 2003-06-10 METHOD FOR REDUCING THE CORROSIVITY OF COOLING OR PROCESS WATER

Country Status (6)

Country Link
EP (1) EP1513634B1 (en)
AT (1) ATE324954T1 (en)
AU (1) AU2003236726A1 (en)
DE (2) DE10227040A1 (en)
ES (1) ES2263003T3 (en)
WO (1) WO2003106074A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3215287T3 (en) * 2014-11-05 2020-09-21 Ecolab Usa Inc. Method to control corrosion in continuous casters
US10722824B2 (en) 2016-10-18 2020-07-28 Ecolab Usa Inc. Device to separate water and solids of spray water in a continuous caster, and method to monitor and control corrosion background

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA805265B (en) * 1979-08-29 1982-10-27 Lysaght Australia Ltd Temper rolling fluids
JPS61190084A (en) * 1985-02-16 1986-08-23 Yanmar Diesel Engine Co Ltd Method for preventing corrosion of cooling water system
JPH0843586A (en) * 1994-04-08 1996-02-16 General Electric Co <Ge> Method for decreasing occurrence or growth of crack in surface of metal part
US6024892A (en) * 1997-10-06 2000-02-15 Fmc Corporation Anticorrosion and pH stable alkali metal halide solutions for air dehumidification
DE10064412A1 (en) * 2000-12-21 2002-06-27 Henkel Kgaa Prevention of the deposition of calcium fluoride

Also Published As

Publication number Publication date
DE50303211D1 (en) 2006-06-08
DE10227040A1 (en) 2003-12-24
AU2003236726A1 (en) 2003-12-31
EP1513634B1 (en) 2006-05-03
EP1513634A2 (en) 2005-03-16
WO2003106074A2 (en) 2003-12-24
WO2003106074A3 (en) 2004-09-10
ES2263003T3 (en) 2006-12-01

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Legal Events

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