AT386594B - METHOD FOR TREATING HARD BOILER WATER - Google Patents

METHOD FOR TREATING HARD BOILER WATER

Info

Publication number
AT386594B
AT386594B AT0405082A AT405082A AT386594B AT 386594 B AT386594 B AT 386594B AT 0405082 A AT0405082 A AT 0405082A AT 405082 A AT405082 A AT 405082A AT 386594 B AT386594 B AT 386594B
Authority
AT
Austria
Prior art keywords
boiler water
treating hard
treating
hard
boiler
Prior art date
Application number
AT0405082A
Other languages
German (de)
Other versions
ATA405082A (en
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 ATA405082A publication Critical patent/ATA405082A/en
Application granted granted Critical
Publication of AT386594B publication Critical patent/AT386594B/en

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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Cookers (AREA)
  • Removal Of Specific Substances (AREA)
  • Paper (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
AT0405082A 1981-11-05 1982-11-05 METHOD FOR TREATING HARD BOILER WATER AT386594B (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
ATA405082A ATA405082A (en) 1988-02-15
AT386594B true AT386594B (en) 1988-09-12

Family

ID=26981609

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0405082A AT386594B (en) 1981-11-05 1982-11-05 METHOD FOR TREATING HARD BOILER WATER

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
EP0122013B1 (en) * 1983-03-07 1988-12-21 Calgon Corporation Polymeric additives for water
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
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.
WO1995013247A1 (en) * 1993-11-11 1995-05-18 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405192A1 (en) * 1973-02-14 1974-08-29 Ciba Geigy Ag METHOD FOR TREATMENT OF WATER
DE2643422A1 (en) * 1976-09-21 1978-03-30 Kurita Water Ind Ltd WATER TREATMENT PRODUCTS AND METHODS FOR TREATMENT OF WATER
DE3022924A1 (en) * 1979-06-19 1981-01-22 Kurita Water Ind Ltd METHOD FOR REMOVING BOILER

Family Cites Families (13)

* 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
GB1440403A (en) * 1973-01-08 1976-06-23 Grace W R & Co Process of inhibiting formation of scale in distrillation of saline water
US3904685A (en) * 1973-07-20 1975-09-09 Celanese Corp Polyacrylic acid having high chelation value and its production
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
DE3230291A1 (en) * 1981-08-18 1983-03-03 Dearborn Chemicals Ltd., Widnes, Cheshire COMPOSITION FOR PREVENTING KETTLE IN AQUEOUS SYSTEMS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405192A1 (en) * 1973-02-14 1974-08-29 Ciba Geigy Ag METHOD FOR TREATMENT OF WATER
DE2643422A1 (en) * 1976-09-21 1978-03-30 Kurita Water Ind Ltd WATER TREATMENT PRODUCTS AND METHODS FOR TREATMENT OF WATER
DE3022924A1 (en) * 1979-06-19 1981-01-22 Kurita Water Ind Ltd METHOD FOR REMOVING BOILER

Also Published As

Publication number Publication date
AU8963682A (en) 1983-05-12
SE450954B (en) 1987-08-17
FR2515631A1 (en) 1983-05-06
AU555892B2 (en) 1986-10-16
ES517116A0 (en) 1984-10-01
IT8249421A0 (en) 1982-11-04
MX160592A (en) 1990-03-27
SE8206274D0 (en) 1982-11-04
DE3240780A1 (en) 1983-05-11
CA1198027A (en) 1985-12-17
GB2110659A (en) 1983-06-22
GB2110659B (en) 1985-09-04
SE8206274L (en) 1983-05-06
DE3240780C2 (en) 1989-08-31
IT1149113B (en) 1986-12-03
FR2515631B1 (en) 1989-12-08
ES8500192A1 (en) 1984-10-01
ATA405082A (en) 1988-02-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee