DE68903989D1 - METHOD AND COMPOSITION FOR CONTROLLING CORROSION IN SOFT OR HARD WATER. - Google Patents

METHOD AND COMPOSITION FOR CONTROLLING CORROSION IN SOFT OR HARD WATER.

Info

Publication number
DE68903989D1
DE68903989D1 DE8989200969T DE68903989T DE68903989D1 DE 68903989 D1 DE68903989 D1 DE 68903989D1 DE 8989200969 T DE8989200969 T DE 8989200969T DE 68903989 T DE68903989 T DE 68903989T DE 68903989 D1 DE68903989 D1 DE 68903989D1
Authority
DE
Germany
Prior art keywords
composition
soft
hard water
controlling corrosion
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.)
Expired - Fee Related
Application number
DE8989200969T
Other languages
German (de)
Other versions
DE68903989T2 (en
Inventor
Bennett P Boffardi
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.)
Calgon Corp
Original Assignee
Calgon 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 Calgon Corp filed Critical Calgon Corp
Application granted granted Critical
Publication of DE68903989D1 publication Critical patent/DE68903989D1/en
Publication of DE68903989T2 publication Critical patent/DE68903989T2/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

Landscapes

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

Abstract

A method for inhibiting corrosion in aqueous systems comprising adding to the system being treated an effective amount of a composition comprising a molybdate ion source, a carboxylic acid/sulfonic acid polymer or salt thereof and polyphosphoric acid or an ester of polyphosphoric acid.
DE8989200969T 1988-04-21 1989-04-17 METHOD AND COMPOSITION FOR CONTROLLING CORROSION IN SOFT OR HARD WATER. Expired - Fee Related DE68903989T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18431988A 1988-04-21 1988-04-21

Publications (2)

Publication Number Publication Date
DE68903989D1 true DE68903989D1 (en) 1993-02-04
DE68903989T2 DE68903989T2 (en) 1993-06-03

Family

ID=22676422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989200969T Expired - Fee Related DE68903989T2 (en) 1988-04-21 1989-04-17 METHOD AND COMPOSITION FOR CONTROLLING CORROSION IN SOFT OR HARD WATER.

Country Status (8)

Country Link
EP (1) EP0339716B1 (en)
JP (1) JPH01316475A (en)
AT (1) ATE83804T1 (en)
AU (1) AU617791B2 (en)
DE (1) DE68903989T2 (en)
ES (1) ES2045384T3 (en)
GR (1) GR3007148T3 (en)
NZ (1) NZ228751A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798683A (en) * 1988-04-21 1989-01-17 Calgon Corporation Method for controlling corrosion using molybdate compositions
EP0660887A1 (en) * 1991-04-12 1995-07-05 Gulf Coast Performance Chemical, Inc. Method and composition for inhibiting general and pitting corrosion in cooling tower water
DE19706410C2 (en) * 1997-02-19 2001-04-05 Metakorin Wasser Chemie Gmbh Process and agent for the anti-corrosion treatment of water-bearing metal systems
JP5099884B2 (en) * 2007-03-29 2012-12-19 伯東株式会社 Corrosion inhibitor

Family Cites Families (8)

* 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
JPS5919480A (en) * 1982-07-26 1984-01-31 Olympus Optical Co Ltd Solid-state image pickup device
US4512552A (en) * 1982-11-16 1985-04-23 Katayama Chemical Works Co., Ltd. Corrosion inhibitor
EP0210590A3 (en) * 1983-03-07 1988-02-17 Calgon Corporation Polymeric additives for water
US4640793A (en) * 1984-02-14 1987-02-03 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
US4717495A (en) * 1984-11-30 1988-01-05 Fleetguard, Inc. Diesel engine cooling system compositions
US4798683A (en) * 1988-04-21 1989-01-17 Calgon Corporation Method for controlling corrosion using molybdate compositions

Also Published As

Publication number Publication date
JPH01316475A (en) 1989-12-21
GR3007148T3 (en) 1993-07-30
EP0339716B1 (en) 1992-12-23
ATE83804T1 (en) 1993-01-15
AU617791B2 (en) 1991-12-05
DE68903989T2 (en) 1993-06-03
NZ228751A (en) 1991-10-25
AU3319289A (en) 1989-10-26
EP0339716A1 (en) 1989-11-02
ES2045384T3 (en) 1994-01-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee