CA2107791A1 - Method and composition for inhibiting general and pitting corrosion in cooling tower water - Google Patents

Method and composition for inhibiting general and pitting corrosion in cooling tower water

Info

Publication number
CA2107791A1
CA2107791A1 CA002107791A CA2107791A CA2107791A1 CA 2107791 A1 CA2107791 A1 CA 2107791A1 CA 002107791 A CA002107791 A CA 002107791A CA 2107791 A CA2107791 A CA 2107791A CA 2107791 A1 CA2107791 A1 CA 2107791A1
Authority
CA
Canada
Prior art keywords
cooling tower
composition
pitting corrosion
tower water
water
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
CA002107791A
Other languages
French (fr)
Other versions
CA2107791C (en
Inventor
Bradley A. Bucher
Jesse H. Jefferies
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.)
Gulf Coast Performance Chemical Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2107791A1 publication Critical patent/CA2107791A1/en
Application granted granted Critical
Publication of CA2107791C publication Critical patent/CA2107791C/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
    • 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
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/187—Mixtures of inorganic inhibitors
    • C23F11/188—Mixtures of inorganic inhibitors containing phosphates
    • 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
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids

Landscapes

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

Abstract

A method of inhibiting the pitting corrosion rate of carbon steel in a cooling tower system comprising adding to a cooling tower water an effective amount of a corrosion inhibiting composition containing from about 1 to about 10 ppm of a water solu-ble molybdate, calculated as molybdate and from about 5 to about 25 ppm of a stabilized phosphate, calculated as phosphate, the corrosion inhibiting composition being substantially free of active zinc. and circulating the water in the system.
CA002107791A 1991-04-12 1992-04-09 Method and composition for inhibiting general and pitting corrosion in cooling tower water Expired - Fee Related CA2107791C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68508791A 1991-04-11 1991-04-11
US685,087 1991-04-12
PCT/US1992/002862 WO1992018665A1 (en) 1991-04-12 1992-04-09 Method and composition for inhibiting general and pitting corrosion in cooling tower water

Publications (2)

Publication Number Publication Date
CA2107791A1 true CA2107791A1 (en) 1992-10-13
CA2107791C CA2107791C (en) 2002-03-12

Family

ID=24750727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002107791A Expired - Fee Related CA2107791C (en) 1991-04-12 1992-04-09 Method and composition for inhibiting general and pitting corrosion in cooling tower water

Country Status (7)

Country Link
EP (1) EP0660887A1 (en)
KR (1) KR970001009B1 (en)
AU (1) AU660027B2 (en)
CA (1) CA2107791C (en)
GB (1) GB2271107B (en)
RO (1) RO109562B1 (en)
WO (1) WO1992018665A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303848B (en) * 1992-08-17 1997-04-16 Grace W R & Co Inhibition of oxygen corrosion in aqueous systems
US5600692A (en) * 1993-10-29 1997-02-04 General Electric Company Method for improving tenacity and loading of palladium on palladium-doped metal surfaces
US5818893A (en) * 1993-10-29 1998-10-06 General Electric Company In-situ palladium doping or coating of stainless steel surfaces
US5600691A (en) * 1993-10-29 1997-02-04 General Electric Company Noble metal doping or coating of crack interior for stress corrosion cracking protection of metals
US5608766A (en) * 1993-10-29 1997-03-04 General Electric Company Co-deposition of palladium during oxide film growth in high-temperature water to mitigate stress corrosion cracking
US5602888A (en) * 1993-10-29 1997-02-11 General Electric Company Radiation-induced palladium doping of metals to protect against stress corrosion cracking
US5773096A (en) * 1993-10-29 1998-06-30 General Electric Company Method of catalyst preparation by high-temperature hydrothermal incorporation of noble metals onto surfaces and matrices
US5625656A (en) * 1993-10-29 1997-04-29 General Electric Company Method for monitoring noble metal distribution in reactor circuit during plant application
TW253058B (en) * 1994-03-10 1995-08-01 Gen Electric Method of doping or coating metal surfaces with metallic elements to improve oxide film insulating characteristics
KR102093142B1 (en) 2017-12-08 2020-05-27 (주) 시온텍 Apparatus for purifying cooling-water

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176059A (en) * 1978-06-08 1979-11-27 Quatic Chemicals Limited Anti-corrosion composition for use in aqueous systems
US4409121A (en) * 1980-07-21 1983-10-11 Uop Inc. Corrosion inhibitors
US4440721A (en) * 1981-10-26 1984-04-03 Basf Wyandotte Corporation Aqueous liquids containing metal cavitation-erosion corrosion inhibitors
US4711725A (en) * 1985-06-26 1987-12-08 Rohm And Haas Co. Method of stabilizing aqueous systems
US4867944A (en) * 1988-01-13 1989-09-19 Gulf Coast Performance Chemical, Inc. Method of preventing corrosion by contaminated cooling tower waters
FR2627511B1 (en) * 1988-02-18 1993-07-09 Gaz De France STEEL CORROSION INHIBITORS AND AQUEOUS ALKALI METAL HALIDE COMPOSITIONS CONTAINING THE SAME
US5002697A (en) * 1988-03-15 1991-03-26 Nalco Chemical Company Molybdate-containing corrosion inhibitors
US4798683A (en) * 1988-04-21 1989-01-17 Calgon Corporation Method for controlling corrosion using molybdate compositions
NZ228751A (en) * 1988-04-21 1991-10-25 Calgon Corp Composition and method for inhibiting corrosion in an aqueous system comprising a molybdate, a carboxylic acid/sulphonic acid polymer and a polyphosphoric acid or ester

Also Published As

Publication number Publication date
WO1992018665A1 (en) 1992-10-29
KR970001009B1 (en) 1997-01-25
GB2271107B (en) 1995-02-22
GB9320754D0 (en) 1994-01-26
AU1879492A (en) 1992-11-17
RO109562B1 (en) 1995-03-30
EP0660887A4 (en) 1994-08-19
EP0660887A1 (en) 1995-07-05
CA2107791C (en) 2002-03-12
GB2271107A (en) 1994-04-06
AU660027B2 (en) 1995-06-08

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