ES8500192A1 - Boiler scale control - Google Patents

Boiler scale control

Info

Publication number
ES8500192A1
ES8500192A1 ES517116A ES517116A ES8500192A1 ES 8500192 A1 ES8500192 A1 ES 8500192A1 ES 517116 A ES517116 A ES 517116A ES 517116 A ES517116 A ES 517116A ES 8500192 A1 ES8500192 A1 ES 8500192A1
Authority
ES
Spain
Prior art keywords
water
hardness
boilers
addition
scale control
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
ES517116A
Other languages
Spanish (es)
Other versions
ES517116A0 (en
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
Priority claimed from US06382567 external-priority patent/US4457847B2/en
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of ES517116A0 publication Critical patent/ES517116A0/en
Publication of ES8500192A1 publication Critical patent/ES8500192A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C02F5/12—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 containing nitrogen
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Cookers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paper (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Method of water treatment of boilers in contact with surfaces of heat transfer, which has applications to treat his hardness, prevent the formation of incrustations on the boilers and remove the plates already formed. Considered in the elimination of oxygen by means of addition to water of an appropriate chemical agent; determination of the total hardness of the food water; addition of an anionic polymer anionic complexing soluble in water, with at least 30 of functionality of carboxylate, adequately controlling the proportion of polymer to hardness, and maintaining a ph between 6 and 11. (Machine-translation by Google Translate, not legally binding)
ES517116A 1981-11-05 1982-11-04 Boiler scale control Expired ES8500192A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31866581A 1981-11-05 1981-11-05
US06382567 US4457847B2 (en) 1981-11-05 1982-05-28 Carboxylate polymers for internal scale control agents in boiler systems

Publications (2)

Publication Number Publication Date
ES517116A0 ES517116A0 (en) 1984-10-01
ES8500192A1 true ES8500192A1 (en) 1984-10-01

Family

ID=26981609

Family Applications (1)

Application Number Title Priority Date Filing Date
ES517116A Expired ES8500192A1 (en) 1981-11-05 1982-11-04 Boiler scale control

Country Status (10)

Country Link
AT (1) AT386594B (en)
AU (1) AU555892B2 (en)
CA (1) CA1198027A (en)
DE (1) DE3240780A1 (en)
ES (1) ES8500192A1 (en)
FR (1) FR2515631B1 (en)
GB (1) GB2110659B (en)
IT (1) IT1149113B (en)
MX (1) MX160592A (en)
SE (1) SE450954B (en)

Families Citing this family (12)

* 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
CA1258963A (en) * 1983-03-07 1989-09-05 Bennett P. Boffardi 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
GB8506615D0 (en) * 1985-03-14 1985-04-17 British Petroleum Co Plc Scale inhibitors
US4717543A (en) * 1986-08-04 1988-01-05 Calgon Corporation Method of inhibiting the corrosion of copper and copper alloys
US4719082A (en) * 1986-08-15 1988-01-12 Nalco Chemical Company Vinyl sulfonic acid - methacrylic acid copolymer passivators for high pressure boilers
US4898677A (en) * 1986-11-10 1990-02-06 National Starch And Chemical Corporation Process for inhibiting scale formation and modifying the crystal structure of barium sulfate and other inorganic salts
US5135661A (en) * 1989-03-21 1992-08-04 Suresh Patel Process for treating water or aqueous systems
US4937002A (en) * 1989-06-12 1990-06-26 National Starch And Chemical Investment Holding Corporation Interpolymers for barium sulphate inhibition
GB2236314A (en) * 1989-09-06 1991-04-03 Grace W R & Co Inhibition of deposition in aqueous systems.
AU5667394A (en) * 1993-11-11 1995-05-29 Marathon Oil Company Inhibition of scale growth utilizing a dual polymer composition
CN114262072A (en) * 2019-01-31 2022-04-01 陈建华 Self-adaptive hardness-reducing type ash water scale inhibition and dispersion agent for coal gasification black ash water and application

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2327302A (en) * 1940-07-13 1943-08-17 Du Pont Soap composition
GB724683A (en) * 1952-05-16 1955-02-23 Goodrich Co B F Improvements in or relating to a boiler water treating composition
GB772775A (en) * 1954-06-04 1957-04-17 Monsanto Chemicals A process for treating hard water
US2980610A (en) * 1956-07-13 1961-04-18 Monsanto Chemicals Process for treating water
US3117577A (en) * 1960-02-04 1964-01-14 Jeanette Elaine J Mosier Sanitary napkin and holder
US3285886A (en) * 1961-07-17 1966-11-15 Grace W R & Co Threshold treatment of water with water dispersible complexing polymers
US3879288A (en) * 1970-07-01 1975-04-22 Frederick Herman Siegele Process of inhibiting scale formation on walls of structures containing an aqueous system
NL7400160A (en) * 1973-01-08 1974-07-10
GB1414918A (en) * 1973-02-14 1975-11-19 Ciba Geigy Uk Ltd Treatment of water to prevent the deposition of scale
US3904685A (en) * 1973-07-20 1975-09-09 Celanese Corp Polyacrylic acid having high chelation value and its production
DE2643422A1 (en) * 1976-09-21 1978-03-30 Kurita Water Ind Ltd WATER TREATMENT PRODUCTS AND METHODS FOR TREATMENT OF WATER
US4072607A (en) * 1976-10-26 1978-02-07 American Cyanamid Company Preparation of anionic polymers for use as scale inhibitors and anti-precipitants
US4048066A (en) * 1976-11-17 1977-09-13 Chemed Corporation Method of inhibiting scale
DE2802709A1 (en) * 1978-01-23 1979-07-26 American Cyanamid Co Scale inhibition using anionic polymer(s) - in which mol. wt. distribution is skewed
GB2054548B (en) * 1979-06-19 1982-12-22 Sanyo Chemical Ind Ltd Scale removal
DE3230291A1 (en) * 1981-08-18 1983-03-03 Dearborn Chemicals Ltd., Widnes, Cheshire COMPOSITION FOR PREVENTING KETTLE IN AQUEOUS SYSTEMS

Also Published As

Publication number Publication date
FR2515631A1 (en) 1983-05-06
ATA405082A (en) 1988-02-15
ES517116A0 (en) 1984-10-01
SE8206274D0 (en) 1982-11-04
DE3240780A1 (en) 1983-05-11
AU8963682A (en) 1983-05-12
SE450954B (en) 1987-08-17
CA1198027A (en) 1985-12-17
DE3240780C2 (en) 1989-08-31
GB2110659A (en) 1983-06-22
AT386594B (en) 1988-09-12
SE8206274L (en) 1983-05-06
FR2515631B1 (en) 1989-12-08
IT8249421A0 (en) 1982-11-04
IT1149113B (en) 1986-12-03
AU555892B2 (en) 1986-10-16
GB2110659B (en) 1985-09-04
MX160592A (en) 1990-03-27

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980601