SE8206274D0 - PROCEDURE FOR TREATING THE HEART WATER IN COOKER SYSTEM - Google Patents
PROCEDURE FOR TREATING THE HEART WATER IN COOKER SYSTEMInfo
- Publication number
- SE8206274D0 SE8206274D0 SE8206274A SE8206274A SE8206274D0 SE 8206274 D0 SE8206274 D0 SE 8206274D0 SE 8206274 A SE8206274 A SE 8206274A SE 8206274 A SE8206274 A SE 8206274A SE 8206274 D0 SE8206274 D0 SE 8206274D0
- Authority
- SE
- Sweden
- Prior art keywords
- waters
- treating
- polymer
- anionic vinyl
- hardness
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 239000003643 water by type Substances 0.000 abstract 4
- 125000000129 anionic group Chemical group 0.000 abstract 3
- 229920002554 vinyl polymer Polymers 0.000 abstract 3
- 150000007942 carboxylates Chemical group 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Removal Of Specific Substances (AREA)
- Paper (AREA)
Abstract
A method of treating hardness present in boiler waters which are in contact with heat transfer surfaces to prevent and remove scale caused by such hardness which comprises treating such waters with a water soluble anionic vinyl polymer containing at least 30% by weight of carboxylate functionality with said polymer having a molecular weight within the range of 500 50,000 and with the amount of such polymer being within the range of 1 - 30 ppm per ppm hardness present in such waters. In a preferred embodiment, the boiler waters are simultaneously treated with the water-soluble anionic vinyl polymers containing carboxylate functionality and another watersoluble anionic vinyl polymer which has dispersing properties.
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 (3)
Publication Number | Publication Date |
---|---|
SE8206274D0 true SE8206274D0 (en) | 1982-11-04 |
SE8206274L SE8206274L (en) | 1983-05-06 |
SE450954B SE450954B (en) | 1987-08-17 |
Family
ID=26981609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8206274A SE450954B (en) | 1981-11-05 | 1982-11-04 | PROCEDURE FOR TREATMENT OF HEART COAT 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)
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. |
AU5667394A (en) * | 1993-11-11 | 1995-05-29 | Marathon Oil Company | Inhibition of scale growth utilizing a dual polymer composition |
CN109650567B (en) * | 2019-01-31 | 2021-09-14 | 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)
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 |
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 |
-
1982
- 1982-10-20 AU AU89636/82A patent/AU555892B2/en not_active Ceased
- 1982-10-28 FR FR828218095A patent/FR2515631B1/en not_active Expired
- 1982-10-29 GB GB08231071A patent/GB2110659B/en not_active Expired
- 1982-11-04 ES ES517116A patent/ES8500192A1/en not_active Expired
- 1982-11-04 MX MX195054A patent/MX160592A/en unknown
- 1982-11-04 DE DE19823240780 patent/DE3240780A1/en active Granted
- 1982-11-04 CA CA000414941A patent/CA1198027A/en not_active Expired
- 1982-11-04 SE SE8206274A patent/SE450954B/en not_active IP Right Cessation
- 1982-11-04 IT IT49421/82A patent/IT1149113B/en active
- 1982-11-05 AT AT0405082A patent/AT386594B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1198027A (en) | 1985-12-17 |
MX160592A (en) | 1990-03-27 |
ES517116A0 (en) | 1984-10-01 |
ATA405082A (en) | 1988-02-15 |
AU555892B2 (en) | 1986-10-16 |
DE3240780A1 (en) | 1983-05-11 |
GB2110659A (en) | 1983-06-22 |
IT1149113B (en) | 1986-12-03 |
SE8206274L (en) | 1983-05-06 |
DE3240780C2 (en) | 1989-08-31 |
FR2515631A1 (en) | 1983-05-06 |
ES8500192A1 (en) | 1984-10-01 |
FR2515631B1 (en) | 1989-12-08 |
AT386594B (en) | 1988-09-12 |
IT8249421A0 (en) | 1982-11-04 |
SE450954B (en) | 1987-08-17 |
GB2110659B (en) | 1985-09-04 |
AU8963682A (en) | 1983-05-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8206274L (en) | PROCEDURE FOR TREATING THE HEART WATER IN COOKER SYSTEM | |
ES2118325T3 (en) | PROCEDURE FOR THE EFFICIENT USE OF A CHAIN TRANSFER AGENT. | |
BR9501438A (en) | Polymerization processes for cleaning hard surfaces and inhibiting the formation of scale and corrosion in a water circulation system. Cleaning and water and polymer treatment compositions | |
IL120324A0 (en) | Process for preparing phosphonate-terminated polymers | |
ATE262544T1 (en) | LOW MOLECULAR WEIGHT STRUCTURED POLYMERS | |
ES2124846T3 (en) | COMPOSITION AND METHOD FOR WATER CLARIFICATION AND WASTEWATER TREATMENT. | |
ES8107255A1 (en) | Treating dispersions of acrylonitrile polymers. | |
DE3785721D1 (en) | WATER-SOLUBLE QUARTERS OF POLYAMMONIUM SALTS, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE. | |
FR2489336B1 (en) | PROCESS FOR THE PREPARATION OF WATER-SOLUBLE POLYMERS OR COPOLYMERS WITH HIGH MOLECULAR WEIGHT AND WITH LOW RESIDUAL MONOMER (S) CONTENT FROM OLEFINICALLY UNSATURATED MONOMERS | |
FR2663207B1 (en) | PROCESS FOR COATING A ACTIVE SENSITIVE PH POLYMER OF ACTIVE INGREDIENTS. | |
SE8205455L (en) | Means for inhibiting the formation of headstone and the emergence of provisions for the treatment of industrial and / or domestic water | |
ES8500307A1 (en) | Method of treating a polymerizing reactor | |
DK274983D0 (en) | POLYMERS OF UNSAMATED ACIDS AND PROCEDURES FOR PREPARING THEREOF | |
DE3276805D1 (en) | Method of preventing scale deposits in water systems | |
NL187578C (en) | PROCESS FOR THE RADICAL POLYMERIZATION OF ALFA, BETA-SATURATED, WATER-SOLUBLE MONOMERS. | |
ES415009A1 (en) | Procedure for the preparation of poly (halogenuros de vinilo). (Machine-translation by Google Translate, not legally binding) | |
JPS56115694A (en) | Water treating chemical | |
JPS56102997A (en) | Preventing method from formation of calcium phosphate scale | |
JPS57131210A (en) | Production of water-soluble high-molecular weight polymer | |
DE3265230D1 (en) | Process for cross-linking polymers or copolymers by means of radical initiators in the presence of oxygen | |
Caskey | The Effect of Polyacrylamide Molecular Structure on Flocculation Activity of Domestic Sewage | |
JPS53124593A (en) | Preparation of vinyl chloride polymer | |
Korshak et al. | Synthesis of Cationic Polyelectrolytes for Treatment of Natural and Waste Waters | |
Malakhov | The Corrosion of Industrial Steam Boilers When Fed by Domestic Waste Waters | |
Sechenova | The hygienic evaluation of the quality of water in the creation of closed systems for industrial water needs |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8206274-6 Format of ref document f/p: F |
|
NUG | Patent has lapsed |
Ref document number: 8206274-6 Format of ref document f/p: F |