ATE442342T1 - Verfahren zur inhibierung der bildung von kesselstein und ablagerungen auf metalloberflächen, die einem wässrigen system ausgesetzt sind - Google Patents
Verfahren zur inhibierung der bildung von kesselstein und ablagerungen auf metalloberflächen, die einem wässrigen system ausgesetzt sindInfo
- Publication number
- ATE442342T1 ATE442342T1 AT03748962T AT03748962T ATE442342T1 AT E442342 T1 ATE442342 T1 AT E442342T1 AT 03748962 T AT03748962 T AT 03748962T AT 03748962 T AT03748962 T AT 03748962T AT E442342 T1 ATE442342 T1 AT E442342T1
- Authority
- AT
- Austria
- Prior art keywords
- aqueous system
- inhibiting
- scale
- metal surfaces
- formation
- Prior art date
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
- C02F5/125—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 combined with inorganic substances
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/683—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of complex-forming compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- 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
- C02F5/02—Softening water by precipitation of the hardness
- C02F5/025—Hot-water softening devices
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/198,781 US6797177B2 (en) | 2002-07-18 | 2002-07-18 | Process for inhibiting scale and fouling on the metal surfaces exposed to an aqeuous system |
PCT/US2003/022693 WO2004013055A1 (en) | 2002-07-18 | 2003-07-16 | Process for inhibiting scale and fouling on the metal surfaces exposed to an aqueous system |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE442342T1 true ATE442342T1 (de) | 2009-09-15 |
Family
ID=30443170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03748962T ATE442342T1 (de) | 2002-07-18 | 2003-07-16 | Verfahren zur inhibierung der bildung von kesselstein und ablagerungen auf metalloberflächen, die einem wässrigen system ausgesetzt sind |
Country Status (7)
Country | Link |
---|---|
US (1) | US6797177B2 (de) |
EP (1) | EP1542933B1 (de) |
AT (1) | ATE442342T1 (de) |
AU (1) | AU2003268011A1 (de) |
DE (1) | DE60329195D1 (de) |
DK (1) | DK1542933T3 (de) |
WO (1) | WO2004013055A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009086954A1 (en) | 2008-01-09 | 2009-07-16 | Akzo Nobel N.V. | Acidic aqueous solution containing a chelating agent and the use thereof |
US20110001083A1 (en) * | 2009-07-02 | 2011-01-06 | Clearwater International, Llc | Environmentally benign water scale inhibitor compositions and method for making and using same |
MX2013014400A (es) | 2011-06-13 | 2014-09-25 | Akzo Nobel Chemicals Int Bv | Resistencia ala corrosion mejorada cuando se usan agentes quelantes en el equipo que contiene cromo. |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4454046A (en) * | 1982-09-07 | 1984-06-12 | The Dow Chemical Company | Boiler scale prevention employing an organic chelant |
US4721532A (en) * | 1985-08-05 | 1988-01-26 | W. R. Grace & Co. | Removal of iron fouling in cooling water systems |
JP2608550B2 (ja) * | 1986-10-17 | 1997-05-07 | 株式会社 片山化学工業研究所 | 軟水ボイラの防食処理方法 |
US5242599A (en) * | 1992-02-07 | 1993-09-07 | Betz Laboratories, Inc. | Polymers for the treatment of boiler water |
US5527468A (en) * | 1994-12-20 | 1996-06-18 | Betz Laboratories, Inc. | Nonionic polymers for the treatment of boiler water |
ATE210176T1 (de) * | 1997-03-12 | 2001-12-15 | Showa Denko Kk | Wasch- und reinigungsmittel |
EP0892040B1 (de) * | 1997-07-16 | 2003-03-05 | Nippon Shokubai Co., Ltd. | Verwendung von Chelat bildenden Zusammensetzungen zum Reinigen |
US6013612A (en) * | 1997-10-22 | 2000-01-11 | Showa Denko K.K. | Cleaning agent composition |
US6034046A (en) * | 1999-03-26 | 2000-03-07 | Colgate Palmolive Company | All purpose liquid bathroom cleaning compositions |
US6096701A (en) * | 1999-06-29 | 2000-08-01 | Colgate Palmolive Company | Antimicrobial multi purpose containing a cationic surfactant |
WO2002027045A1 (en) * | 2000-09-29 | 2002-04-04 | Newmont Usa Limited | Method and apparatus for chemical processing |
US6362148B1 (en) * | 2001-09-06 | 2002-03-26 | Colgate-Palmolive Co. | Anti-lime scale cleaning composition comprising polyoxyethylene oxide polycarboxylic acid copolymer |
-
2002
- 2002-07-18 US US10/198,781 patent/US6797177B2/en not_active Expired - Lifetime
-
2003
- 2003-07-16 DE DE60329195T patent/DE60329195D1/de not_active Expired - Lifetime
- 2003-07-16 EP EP03748962A patent/EP1542933B1/de not_active Revoked
- 2003-07-16 AT AT03748962T patent/ATE442342T1/de active
- 2003-07-16 DK DK03748962T patent/DK1542933T3/da active
- 2003-07-16 AU AU2003268011A patent/AU2003268011A1/en not_active Abandoned
- 2003-07-16 WO PCT/US2003/022693 patent/WO2004013055A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1542933B1 (de) | 2009-09-09 |
DK1542933T3 (da) | 2009-11-02 |
WO2004013055A1 (en) | 2004-02-12 |
US6797177B2 (en) | 2004-09-28 |
EP1542933A1 (de) | 2005-06-22 |
EP1542933A4 (de) | 2005-10-05 |
AU2003268011A1 (en) | 2004-02-23 |
DE60329195D1 (de) | 2009-10-22 |
US20040011743A1 (en) | 2004-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification |
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