IT1244754B - Composizione per il trattamento di sistemi acquosi - Google Patents
Composizione per il trattamento di sistemi acquosiInfo
- Publication number
- IT1244754B IT1244754B ITMI910615A ITMI910615A IT1244754B IT 1244754 B IT1244754 B IT 1244754B IT MI910615 A ITMI910615 A IT MI910615A IT MI910615 A ITMI910615 A IT MI910615A IT 1244754 B IT1244754 B IT 1244754B
- Authority
- IT
- Italy
- Prior art keywords
- acid
- acrylic
- treatment
- composition
- copolymer
- 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
- C02F5/14—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 phosphorus
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)
- Compositions Of Macromolecular Compounds (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Detergent Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Una composizione per il trattamento di un sistema acquoso per impedire la deposizione di scoria provocato da impurezze che formano scoria nel sistema, che comprende (A) un omopolimero idrolizzato di anidride maleica avente un peso molecolare medio ponderale di 400-800 oppure un suo sale solubile in acqua e (B) un polimero acrilico contenente gruppi carbossilici avente un peso molecolare medio ponderale di 800-9500 scelto da un acido poliacrilico, un acido polimetacrilico, un copolimero di almeno due monomeri acrilici, uno di detti monomeri essendo acido acrilico oppure acido metacrilico, un copolimero di acido acrilico o di acido metacrilico con un vinil-carbossilato oppure con uno stirene, un telomero dell'acido fosfinometacrilico, oppure un sale solubile in acqua del polimero acrilico contenente gruppi carbossilici.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909005440A GB9005440D0 (en) | 1990-03-10 | 1990-03-10 | Composition |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI910615A0 ITMI910615A0 (it) | 1991-03-08 |
ITMI910615A1 ITMI910615A1 (it) | 1992-09-08 |
IT1244754B true IT1244754B (it) | 1994-08-08 |
Family
ID=10672411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI910615A IT1244754B (it) | 1990-03-10 | 1991-03-08 | Composizione per il trattamento di sistemi acquosi |
Country Status (6)
Country | Link |
---|---|
US (1) | US5152403A (it) |
JP (1) | JP3196031B2 (it) |
DE (1) | DE4107322B4 (it) |
FR (1) | FR2659316A1 (it) |
GB (2) | GB9005440D0 (it) |
IT (1) | IT1244754B (it) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5263541A (en) * | 1989-11-01 | 1993-11-23 | Barthorpe Richard T | Inhibition of scale growth utilizing a dual polymer composition |
US5684109A (en) * | 1993-06-22 | 1997-11-04 | Betzdearborn Inc. | Composition comprising a tannin-containing copolymer |
US5916991A (en) * | 1993-06-22 | 1999-06-29 | Betzdearborn Inc. | Composition and method for water clarification |
US5643462A (en) * | 1993-06-22 | 1997-07-01 | Betzdearborn Inc. | Composition and method for water clarification |
US5846436A (en) * | 1993-06-22 | 1998-12-08 | Betzdearborn Inc. | Composition and method for water clarification |
GB9409483D0 (en) * | 1994-05-12 | 1994-06-29 | Fmc Corp Uk Ltd | Scale inhibition process |
EP0706813A3 (de) * | 1994-10-15 | 1996-10-02 | Basf Ag | Verfahren zur Absorption von sauren Gasen in Gegenwart von Carboxylgruppen tragenden Polymeren |
US5830315A (en) * | 1995-07-06 | 1998-11-03 | Betzdearborn Inc. | Treatment of Aqueous systems using a chemically modified tannin |
GB9614581D0 (en) * | 1996-07-11 | 1996-09-04 | Fmc Corp Uk Ltd | Scale inhibition process |
JPH11310888A (ja) * | 1998-04-27 | 1999-11-09 | Katayama Chem Works Co Ltd | 金属防食剤 |
US6858180B2 (en) * | 2002-05-16 | 2005-02-22 | Ashland Inc. | Process for inhibiting scale |
JP2006233287A (ja) * | 2005-02-25 | 2006-09-07 | Aquas Corp | 腐食防止用組成物、及び、腐食防止方法 |
US7703530B2 (en) * | 2005-08-10 | 2010-04-27 | Schlumberger Technology Corporation | Scale inhibitors compatible with sandstone acidizing |
US8921298B2 (en) * | 2006-05-08 | 2014-12-30 | Ecolab Usa Inc. | Acidic cleaner for metal surfaces |
BRPI0817374A2 (pt) * | 2007-11-13 | 2019-09-24 | Akzo Nobel Nv | método de controle de incrustações em um sistema aquoso e método de neutralização de uma solução aquosa de ácido polimaleico |
US20100263689A1 (en) * | 2009-04-21 | 2010-10-21 | Ecolab Usa Inc. | Methods and apparatus for controlling water hardness |
CN101913713B (zh) * | 2010-03-16 | 2012-02-29 | 上海立昌环境工程有限公司 | 一种硫酸盐垢清洗剂 |
US9221700B2 (en) | 2010-12-22 | 2015-12-29 | Ecolab Usa Inc. | Method for inhibiting the formation and deposition of silica scale in aqueous systems |
AU2012293673B2 (en) | 2011-08-10 | 2017-02-23 | Basf Se | Polymer blends as coating inhibitors in water-carrying systems |
US9193610B2 (en) | 2011-08-10 | 2015-11-24 | Ecolab USA, Inc. | Synergistic interaction of weak cation exchange resin and magnesium oxide |
JP6146075B2 (ja) | 2013-03-22 | 2017-06-14 | 栗田工業株式会社 | スケール防止方法及びスケール防止剤 |
JP6900193B2 (ja) * | 2014-02-13 | 2021-07-07 | ビーエイエスエフ・ソシエタス・エウロパエアBasf Se | 粉末及び顆粒、この粉末及び顆粒の製造方法、並びに、その使用方法 |
US20160038948A1 (en) | 2014-08-11 | 2016-02-11 | Arr-Maz Products, L.P. | Process and chemistry for reducing dolomite concentrations in phosphate processing |
CN104609577A (zh) * | 2014-12-25 | 2015-05-13 | 宁波市川宁环保科技有限公司 | 一种高效复合杀菌抑垢剂及其制备方法 |
CN104773847B (zh) * | 2015-04-24 | 2016-07-20 | 中冶华天工程技术有限公司 | 膦酰基马来酸酐-丙烯酸共聚物及其制备方法、应用 |
WO2017063188A1 (en) * | 2015-10-16 | 2017-04-20 | Ecolab Usa Inc. | Maleic anhydride homopolymer and maleic acid homopolymer and the method for preparing the same, and non-phosphorus corrosion inhibitor and the use thereof |
CN110803784A (zh) * | 2018-08-06 | 2020-02-18 | 中国石油化工股份有限公司 | 含水溶性硅酸盐的复合缓蚀阻垢剂及其应用和抑制含硫循环冷却水腐蚀的方法 |
WO2021117542A1 (ja) * | 2019-12-12 | 2021-06-17 | パナソニックIpマネジメント株式会社 | 軟水化装置 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3463730A (en) * | 1965-08-05 | 1969-08-26 | American Cyanamid Co | Prevention of and removal of scale formation in water systems |
GB1369429A (en) * | 1970-11-30 | 1974-10-09 | Ciba Geigy Ag | Treatment of water or aqueous systems |
US3963636A (en) * | 1972-12-04 | 1976-06-15 | Ciba-Geigy Corporation | Treatment of water or aqueous systems |
GB1411063A (en) * | 1973-02-14 | 1975-10-22 | Ciba Geigy Uk Ltd | Polymerisation process |
US4126549A (en) * | 1973-02-14 | 1978-11-21 | Ciba-Geigy (Uk) Limited | Treatment of water |
GB1433221A (en) * | 1973-03-27 | 1976-04-22 | Ciba Geigy Ag | Water treatment |
US3965027A (en) * | 1974-03-11 | 1976-06-22 | Calgon Corporation | Scale inhibition and corrosion inhibition |
US4008164A (en) * | 1974-03-21 | 1977-02-15 | Nalco Chemical Company | Process for scale inhibition |
US4168230A (en) * | 1976-11-10 | 1979-09-18 | Nalco Chemical Company | Synergistic composition comprising phosphorylated ethoxylated glycerine and polyacrylic acid for the prevention of CaCO3 scale in cooling water |
US4065607A (en) * | 1977-03-23 | 1977-12-27 | Pfizer Inc. | Terpolymers of maleic anhydride and their use as scale control agents |
US4223120A (en) * | 1977-03-23 | 1980-09-16 | Pfizer Inc. | Terpolymers of maleic anhydride and their use as scale control agents |
GB1595688A (en) * | 1978-05-26 | 1981-08-12 | Ciba Geigy Uk Ltd | Treatment of aqueous systems |
US4277359A (en) * | 1979-04-04 | 1981-07-07 | Mogul Corporation | Water treatment to inhibit corrosion and scale and process |
US4446045A (en) * | 1981-04-01 | 1984-05-01 | Betz Laboratories, Inc. | Composition for treating aqueous mediums |
US4374733A (en) * | 1981-04-01 | 1983-02-22 | Betz Laboratories, Inc. | Method for treating aqueous mediums |
US4361492A (en) * | 1981-04-09 | 1982-11-30 | Nalco Chemical Company | Particulate dispersant enhancement using acrylamide-acrylic acid copolymers |
US4545920A (en) * | 1982-05-28 | 1985-10-08 | Nalco Chemical Company | Boiler water treating compositions |
US4435556A (en) * | 1983-03-28 | 1984-03-06 | Masler Iii William F | Method of making and using novel scale inhibiting terpolymer |
US4530766A (en) * | 1983-04-15 | 1985-07-23 | Rohm And Haas Company | Method of inhibiting scaling in aqueous systems with low molecular weight copolymers |
US4631131A (en) * | 1983-12-08 | 1986-12-23 | R. W. Grace & Co. | Method for inhibiting scale |
GB8400848D0 (en) * | 1984-01-13 | 1984-02-15 | Ciba Geigy Ag | Cotelomer compounds |
US4640793A (en) * | 1984-02-14 | 1987-02-03 | Calgon Corporation | Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers |
JPS61118199A (ja) * | 1984-11-14 | 1986-06-05 | Kurita Water Ind Ltd | 水処理剤 |
EP0321066B1 (en) * | 1987-12-16 | 1992-07-15 | Diversey Corporation | All-in-one boiler water treatment composition |
US4978456A (en) * | 1988-06-10 | 1990-12-18 | The Mogul Corporation | Method for inhibiting scale and corrosion in water systems |
GB8829830D0 (en) * | 1988-12-21 | 1989-02-15 | Ciba Geigy Ag | Method for treating water |
-
1990
- 1990-03-10 GB GB909005440A patent/GB9005440D0/en active Pending
-
1991
- 1991-03-01 US US07/663,493 patent/US5152403A/en not_active Expired - Lifetime
- 1991-03-05 GB GB9104648A patent/GB2241945B/en not_active Expired - Lifetime
- 1991-03-07 DE DE4107322A patent/DE4107322B4/de not_active Expired - Fee Related
- 1991-03-07 FR FR9102726A patent/FR2659316A1/fr active Granted
- 1991-03-08 JP JP06912591A patent/JP3196031B2/ja not_active Expired - Fee Related
- 1991-03-08 IT ITMI910615A patent/IT1244754B/it active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
GB9104648D0 (en) | 1991-04-17 |
FR2659316B1 (it) | 1993-10-29 |
JP3196031B2 (ja) | 2001-08-06 |
JPH04222697A (ja) | 1992-08-12 |
GB2241945B (en) | 1994-07-06 |
FR2659316A1 (en) | 1991-09-13 |
US5152403A (en) | 1992-10-06 |
DE4107322B4 (de) | 2005-10-20 |
ITMI910615A0 (it) | 1991-03-08 |
ITMI910615A1 (it) | 1992-09-08 |
GB2241945A (en) | 1991-09-18 |
DE4107322A1 (de) | 1991-09-12 |
GB9005440D0 (en) | 1990-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19990331 |