IT1170534B - Procedimento per migliorare l'efficacia di composizioni inibitrici di corrosione in acque dure - Google Patents

Procedimento per migliorare l'efficacia di composizioni inibitrici di corrosione in acque dure

Info

Publication number
IT1170534B
IT1170534B IT49208/83A IT4920883A IT1170534B IT 1170534 B IT1170534 B IT 1170534B IT 49208/83 A IT49208/83 A IT 49208/83A IT 4920883 A IT4920883 A IT 4920883A IT 1170534 B IT1170534 B IT 1170534B
Authority
IT
Italy
Prior art keywords
hardwater
effectiveness
corrosion
improving
procedure
Prior art date
Application number
IT49208/83A
Other languages
English (en)
Other versions
IT8349208A0 (it
Inventor
John A Romberger
Daniel A Meier
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of IT8349208A0 publication Critical patent/IT8349208A0/it
Application granted granted Critical
Publication of IT1170534B publication Critical patent/IT1170534B/it

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)
IT49208/83A 1982-11-08 1983-10-24 Procedimento per migliorare l'efficacia di composizioni inibitrici di corrosione in acque dure IT1170534B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/439,705 US4502978A (en) 1982-11-08 1982-11-08 Method of improving inhibitor efficiency in hard waters

Publications (2)

Publication Number Publication Date
IT8349208A0 IT8349208A0 (it) 1983-10-24
IT1170534B true IT1170534B (it) 1987-06-03

Family

ID=23745807

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49208/83A IT1170534B (it) 1982-11-08 1983-10-24 Procedimento per migliorare l'efficacia di composizioni inibitrici di corrosione in acque dure

Country Status (6)

Country Link
US (1) US4502978A (it)
JP (1) JPS5996281A (it)
BR (1) BR8306079A (it)
CA (1) CA1195487A (it)
DE (1) DE3334486A1 (it)
IT (1) IT1170534B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936987A (en) * 1983-03-07 1990-06-26 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
US4640793A (en) * 1984-02-14 1987-02-03 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
JPS61281884A (ja) * 1985-06-07 1986-12-12 Touzai Kogyo Kk 徐溶性固形水処理薬剤
US4820423A (en) * 1986-04-03 1989-04-11 Nalco Chemical Company Branched alkyl acrylamide types of polymer-zinc corrosion inhibitor
US4797224A (en) * 1986-04-03 1989-01-10 Nalco Chemical Company Branched alkyl acrylamide types of polymer-zinc corrosion inhibitor
US4925568A (en) * 1986-08-15 1990-05-15 Calgon Corporation Polyacrylate blends as boiler scale inhibitors
US4680124A (en) * 1987-01-08 1987-07-14 Nalco Chemical Company Polyacrylate scale inhibition
US5002697A (en) * 1988-03-15 1991-03-26 Nalco Chemical Company Molybdate-containing corrosion inhibitors
US5578246A (en) * 1994-10-03 1996-11-26 Ashland Inc. Corrosion inhibiting compositions for aqueous systems
DE19518514A1 (de) * 1995-05-19 1996-11-21 Setral Chemie Technology Gmbh Korrosionsschutzmittel
US5863876A (en) * 1997-02-11 1999-01-26 S. C. Johnson & Son, Inc. In-tank toilet cleansing block having polyacrylic acid/acrylate

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463730A (en) * 1965-08-05 1969-08-26 American Cyanamid Co Prevention of and removal of scale formation in water systems
JPS45247Y1 (it) * 1967-03-27 1970-01-08
US3793194A (en) * 1972-02-28 1974-02-19 Hercules Inc Scale and corrosion control in flowing waters
US3891568A (en) * 1972-08-25 1975-06-24 Wright Chem Corp Method and composition for control of corrosion and scale formation in water systems
US4126549A (en) * 1973-02-14 1978-11-21 Ciba-Geigy (Uk) Limited Treatment of water
US3885914A (en) * 1973-06-04 1975-05-27 Calgon Corp Polymer-zinc corrosion inhibiting method
US3941562A (en) * 1973-06-04 1976-03-02 Calgon Corporation Corrosion inhibition
US3992318A (en) * 1973-10-09 1976-11-16 Drew Chemical Corporation Corrosion inhibitor
US3965027A (en) * 1974-03-11 1976-06-22 Calgon Corporation Scale inhibition and corrosion inhibition
JPS51145441A (en) * 1975-02-17 1976-12-14 Katayama Chemical Works Co Anticorrosive for condensed water in circulation system
US4143222A (en) * 1977-08-18 1979-03-06 Nalco Chemical Company Method of controlling the molecular weight of vinyl carboxylic acid-acrylamide copolymers
US4196272A (en) * 1978-11-27 1980-04-01 Nalco Chemical Company Continuous process for the preparation of an acrylic acid-methyl acrylate copolymer in a tubular reactor
US4361492A (en) * 1981-04-09 1982-11-30 Nalco Chemical Company Particulate dispersant enhancement using acrylamide-acrylic acid copolymers
US4387027A (en) * 1981-10-09 1983-06-07 Betz Laboratories, Inc. Control of iron induced fouling in water systems

Also Published As

Publication number Publication date
IT8349208A0 (it) 1983-10-24
JPS6324074B2 (it) 1988-05-19
JPS5996281A (ja) 1984-06-02
US4502978A (en) 1985-03-05
CA1195487A (en) 1985-10-22
DE3334486A1 (de) 1984-05-10
BR8306079A (pt) 1984-06-12

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Effective date: 19971029