ES2004955A6 - Un metodo para pasivar superficies de metales ferreos en contacto con aguas de calderas - Google Patents

Un metodo para pasivar superficies de metales ferreos en contacto con aguas de calderas

Info

Publication number
ES2004955A6
ES2004955A6 ES8702208A ES8702208A ES2004955A6 ES 2004955 A6 ES2004955 A6 ES 2004955A6 ES 8702208 A ES8702208 A ES 8702208A ES 8702208 A ES8702208 A ES 8702208A ES 2004955 A6 ES2004955 A6 ES 2004955A6
Authority
ES
Spain
Prior art keywords
passivators
high pressure
methacrylic acid
vinyl sulfonic
sulfonic 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
Application number
ES8702208A
Other languages
English (en)
Inventor
Robert S Robinson
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.)
ChampionX LLC
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 ES2004955A6 publication Critical patent/ES2004955A6/es
Expired 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
    • C23F11/10—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 organic inhibitors
    • C23F11/173—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

CIERTOS POLIMEROS DE ACIDO VINILSULFONICO Y METACRILICO PROMUEVEN LA FORMACION DE PELICULAS PROTECTORAS PASIVAS DE OXIDO SOBRE SUPERFICIES DE ACERO BAJO CONDICIONES ALCALINAS DE CALDERAS Y A ALTAS PRESIONES, POR EJEMPLO A PH 11, Y 70 A 105 KG/CMY, PROPORCIONANDO MIENTRAS BUEN CONTROL DE LA DEPOSICION MINERAL EN LA CALDERA.
ES8702208A 1986-08-15 1987-07-28 Un metodo para pasivar superficies de metales ferreos en contacto con aguas de calderas Expired ES2004955A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/896,790 US4719082A (en) 1986-08-15 1986-08-15 Vinyl sulfonic acid - methacrylic acid copolymer passivators for high pressure boilers

Publications (1)

Publication Number Publication Date
ES2004955A6 true ES2004955A6 (es) 1989-02-16

Family

ID=25406844

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8702208A Expired ES2004955A6 (es) 1986-08-15 1987-07-28 Un metodo para pasivar superficies de metales ferreos en contacto con aguas de calderas

Country Status (9)

Country Link
US (1) US4719082A (es)
JP (1) JPS6350485A (es)
AU (1) AU588205B2 (es)
ES (1) ES2004955A6 (es)
FR (1) FR2602799A1 (es)
IT (1) IT1211708B (es)
NZ (1) NZ221192A (es)
PT (1) PT85495B (es)
SE (1) SE8703142L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236314A (en) * 1989-09-06 1991-04-03 Grace W R & Co Inhibition of deposition in aqueous systems.
FR2723750B1 (fr) * 1994-08-04 1996-10-25 Concorde Chimie France Composition inhibitrice d'entartrage et de corrosion pour proteger les surfaces en contact avec de l'eau et procede de preparation de ladite composition.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879288A (en) * 1970-07-01 1975-04-22 Frederick Herman Siegele Process of inhibiting scale formation on walls of structures containing an aqueous system
US3682224A (en) * 1970-12-17 1972-08-08 Merrill Bleyle Scale prevention agents of methacrylic acid-vinyl sulfonate copolymers for saline water evaporation
GB2054548B (en) * 1979-06-19 1982-12-22 Sanyo Chemical Ind Ltd Scale removal
US4387027A (en) * 1981-10-09 1983-06-07 Betz Laboratories, Inc. Control of iron induced fouling in water systems
AU555892B2 (en) * 1981-11-05 1986-10-16 Nalco Chemical Company Carboxylate polymers for internal scale control agents in boiler systems
US4457847B2 (en) * 1981-11-05 1996-12-31 Nalco Chemical Co Carboxylate polymers for internal scale control agents in boiler systems
EP0122013B1 (en) * 1983-03-07 1988-12-21 Calgon Corporation Polymeric additives for water
CA1234033A (en) * 1983-10-26 1988-03-15 Fu Chen Water treatment polymers and methods of use thereof
US4604211A (en) * 1985-01-29 1986-08-05 Nalco Chemical Company Acrylic acid-sodium vinylsulfonate-vinyl acetate terpolymer and use thereof as a dispersant

Also Published As

Publication number Publication date
PT85495A (pt) 1988-08-17
SE8703142L (sv) 1988-02-16
AU7601187A (en) 1988-02-18
IT8748290A0 (it) 1987-08-10
US4719082A (en) 1988-01-12
PT85495B (pt) 1993-07-30
SE8703142D0 (sv) 1987-08-13
JPS6350485A (ja) 1988-03-03
IT1211708B (it) 1989-11-03
NZ221192A (en) 1989-01-27
FR2602799A1 (fr) 1988-02-19
AU588205B2 (en) 1989-09-07

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010201