IL44110A - Process for treatment of water - Google Patents

Process for treatment of water

Info

Publication number
IL44110A
IL44110A IL44110A IL4411074A IL44110A IL 44110 A IL44110 A IL 44110A IL 44110 A IL44110 A IL 44110A IL 4411074 A IL4411074 A IL 4411074A IL 44110 A IL44110 A IL 44110A
Authority
IL
Israel
Prior art keywords
acid
copolymer
water
vhich
monomer
Prior art date
Application number
IL44110A
Other versions
IL44110A0 (en
Original Assignee
Ciba Geigy
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
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of IL44110A0 publication Critical patent/IL44110A0/en
Publication of IL44110A publication Critical patent/IL44110A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/173—Macromolecular compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
    • C08F22/04—Anhydrides, e.g. cyclic anhydrides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/04—Anhydrides, e.g. cyclic anhydrides
    • C08F222/06—Maleic anhydride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
    • C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages

Abstract

1414918 Sequestering agents CIBA-GEIGY (UK) Ltd 4 Feb 1974 [14 Feb 1973] 7181/73 Heading C1C [Also in Division C7] Water is treated to inhibit scale deposition by addition thereto of a hydrolysed copolymer of maleic anhydride with a mono-ethylenically unsaturated monomer or monomer mixture, the molar ratio maleic anhydride : other monomers being from 2�5 : 1 to 100 : 1 and the copolymer M.W. being up to 1000. Said monomer may be acrylic acid, methacrylic acid, crotonic acid, itaconic acid, aconitic acid (esters), itaconic anhydride ethyl acrylate, methyl methacrylate, acrylonitrile, acrylamide, vinyl acetate, styrene, α-methyl styrene, methyl vinyl ketone, acrolein, ethylene, and/or propylene. The polymer may be hydrolyzed by water, acid or alkali; 0�1- 100 p.p.m. is added to water in a boiler or seawater evaporator, e.g. of metal such as A1 or brass. A dispersing or threshold agent may be added, e.g. polyacrylic acid (salt), hydrolysed polyacrylonitrile, polymethacrylic acid, polyacrylamide or its acrylic or methacrylic copolymers, lignin sulphonic acid, tannin, naphthalene sulphonic acid/HCHO, starch, or carboxymethylcellulose, polymaleic acid, alkyl- or amino alkyl-phosphonic acid or alkali metal phosphate. There may also be added a precipitating agent, e.g. alkali metal orthophosphate, carbonate, hydroxide, oxygen-scavengers. such as a.m. sulphite or N 2 H 4 , sequestering agents such as NTA or EDTA, corrosion inhibitors such as cyclohexylamine, morpholine, distearylamine/ethylene oxide, stearylamine, Na 2 SO 4 , MgSO 4 , or antifoaming agents, e.g. distearyl sebacamide, or adipamide, fatty alcohols or their ethylene oxide condensates. [GB1414918A]

Claims (2)

1. What we claim is: . · 1. ·· A process for treating vat r which comprises adding thereto a hydrolysed copolymer of nialeic anhydride with a mono-eth lenically nnsaturited monomer &? a mixture of monomers, the molar ratio of nialeic anhydride to other monomers being from 2.5:1 to 100:1, and the molecular weight of the copolymer being in the range of below^lOOO.
2. Λ process as claimed in Claim 1 in v.'hich the molar ratio of maleic anhydride to other monomers, is from . 2.5:1 to 30:1. 3· A process as claimed in Claim 1 or 2 in which the ■molar ratio of nialeic anhydride to other monomers is from 2.5:1 to 7:1. h. A process as claimed in any precedin claims in which the amount of copolymer added to the water to be treated is from 0.1 to 100 parts per million (ppm) by weight . 5· A process as claimed in Claim k in which the amount of copolymer added to the water to be treated is from 2 to 10 p. p.m. by weight. 6. A process as claimed in Claim in which the amount of copolymer added to the water to be treated is from to 10 p. p.m. by weight. 7· A process as claimed in any preceding claim in which the other monomer is selected from acrylic acid, inethacrylic acid itacohic acid, crotonic acid or simple esters of the said acids, itaconic anhydride, acrylonitrile , acrylaniide, vinyl acetate, ethylene, propylene, styrene, a-methyl styrene, methyl vinyl ketone, acrolein or mixtures thereof. A process cis claimed in any of Claims 1 to 6 in which the; other monomer is selected from vinyl acetate, ethyl acryl ite, acrylamide and methyl methacrylate . Λ process as claimed in any of Claims 1 to 6 in vhich. the copolymer is derived from maleic anhydride, vinyl acetate and ethyl acrylate. A process as claimed in any preceding claim in vhich a reactive solvent is vised in the preparation of the copolymer, and acta as a end-stopper for the copolymer molecule. A process as claimed in Claim 10 in vhich the reactiv solvent vised in the preparation of the copolymer i carbon te trabromide , carbon teti-achloride , toluene, xylene, methyl ethyl ketone, acetone, acetic acid, ethyl benzene or tertiary butyl benzene. A process as claimed in any preceding claim in which the copolymer is finally hydrolysed with water. A process as claimed in any of Claims 1 - 11 in vhich the copolymer is hydx"olysed with alkalx. A process as claimed in any of Claims 1 - 11 in vhich the copolymer is hydro^sed vith a mineral acid. A process as claimed in' Claim 1, substantially as hereinbefore described vith reference to any' of Examples 1 to 13 · A process as claimed in Claim 1 , substantially as hcreinbefore described vith reference to Example ΐΊ or 15.
IL44110A 1973-02-14 1974-01-29 Process for treatment of water IL44110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB718173A GB1414918A (en) 1973-02-14 1973-02-14 Treatment of water to prevent the deposition of scale

Publications (2)

Publication Number Publication Date
IL44110A0 IL44110A0 (en) 1974-05-16
IL44110A true IL44110A (en) 1976-09-30

Family

ID=9828171

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44110A IL44110A (en) 1973-02-14 1974-01-29 Process for treatment of water

Country Status (20)

Country Link
JP (1) JPS5429998B2 (en)
AR (1) AR201367A1 (en)
BE (1) BE810967A (en)
BR (1) BR7401045D0 (en)
CA (1) CA1019476A (en)
CY (1) CY1000A (en)
DE (1) DE2405192C2 (en)
DK (1) DK146185C (en)
EG (1) EG11050A (en)
FR (1) FR2217274B1 (en)
GB (1) GB1414918A (en)
HK (1) HK26679A (en)
IL (1) IL44110A (en)
IT (1) IT1009636B (en)
MT (1) MTP759B (en)
NL (1) NL181865C (en)
PL (1) PL88620B1 (en)
SE (1) SE397954B (en)
SU (1) SU730293A3 (en)
ZA (1) ZA74949B (en)

Families Citing this family (48)

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Publication number Priority date Publication date Assignee Title
US4126549A (en) * 1973-02-14 1978-11-21 Ciba-Geigy (Uk) Limited Treatment of water
US4086146A (en) * 1975-11-12 1978-04-25 W. R. Grace & Co. Water treating process
JPS5277804A (en) * 1975-12-24 1977-06-30 Kurita Water Ind Ltd Process for collecting dust from waste gases of blast furnace or conve rter
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
JPS5363201A (en) * 1976-11-19 1978-06-06 Kouriyuu Kougiyou Kk Dust collecting method of exhaust gas of rotary furnace
JPS6057918B2 (en) * 1977-01-31 1985-12-17 甲竜工業株式会社 Seawater desalination method
US4223120A (en) 1977-03-23 1980-09-16 Pfizer Inc. Terpolymers of maleic anhydride and their use as scale control agents
US4065607A (en) * 1977-03-23 1977-12-27 Pfizer Inc. Terpolymers of maleic anhydride and their use as scale control agents
FR2420412A1 (en) * 1978-03-21 1979-10-19 Demler Sa Ets Moulding machine for mfg. prefabricated building elements - has vibrators mounted on dampers to reduce noise and sound insulating casing
CA1114978A (en) * 1978-06-15 1981-12-22 Chih M. Hwa Sludge conditioning composition for scale inhibition in water
US4253968A (en) * 1979-08-17 1981-03-03 Hercules Incorporated Process of inhibiting precipitation of calcium salts utilizing a copolymer of allyl monomers and maleic anhydride
DE2938429A1 (en) * 1979-09-22 1981-04-09 Hoechst Ag, 6000 Frankfurt AQUEOUS SOLUTION OR DISPERSION OF A STYRENE / MALEIC ACID ANHYDRIDE COPOLYMER, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE
US4279768A (en) * 1980-02-04 1981-07-21 Fremont Industries, Inc. Service descaler for aqueous systems
US4390670A (en) 1981-02-09 1983-06-28 Pfizer Inc. Acrylate/maleate copolymers, their preparation and use as antiscalants
US4547559A (en) * 1981-02-09 1985-10-15 Pfizer Inc. Acrylate/maleate copolymers, their preparation and use as antiscalants
US4710537A (en) * 1981-02-09 1987-12-01 Pfizer Inc. Substantially homogeneous copolymers of acrylic or methacrylic acid and maleic acid
DE3230291A1 (en) * 1981-08-18 1983-03-03 Dearborn Chemicals Ltd., Widnes, Cheshire COMPOSITION FOR PREVENTING KETTLE IN AQUEOUS SYSTEMS
FR2514746B1 (en) * 1981-10-20 1985-05-31 Coatex Sa INHIBITOR OF INCRUSTATION AND PRECIPITATION FOR THE TREATMENT OF INDUSTRIAL AND / OR DOMESTIC WATER
AU555892B2 (en) * 1981-11-05 1986-10-16 Nalco Chemical Company Carboxylate polymers for internal scale control agents in boiler systems
EP0089189B1 (en) * 1982-03-11 1986-06-11 Calgon Corporation A calcium carbonate, magnesium hydroxide and calcium sulfate hemihydrate scale inhibitor
DK65983A (en) * 1982-03-25 1983-09-26 Pfizer PROCEDURE FOR PREVENTING STONEY DETAILS IN WATER
JPS5926609U (en) * 1982-08-12 1984-02-18 長田電機工業株式会社 dental treatment instruments
FR2536383A1 (en) * 1982-11-24 1984-05-25 Elf Aquitaine PROCESS AND PRODUCT FOR PREVENTING CALCULATION BY WATER
CA1224999A (en) * 1983-02-16 1987-08-04 Dionisio G. Cuisia Composition and method for inhibiting scale
US4556493A (en) * 1983-02-16 1985-12-03 Dearborn Chemical Company Composition and method for inhibiting scale
JPS60134092A (en) * 1983-12-20 1985-07-17 タイホ−工業株式会社 Scale inhibitor in kraft pulp producing process
US4871823A (en) 1987-09-11 1989-10-03 S. C. Johnson & Son, Inc. 1-Alkene/excess maleic anhydride polymers
US4859752A (en) * 1987-09-11 1989-08-22 S. C. Johnson & Son, Inc. Alkene/excess maleic anhydride polymer manufacture
US4952324A (en) * 1988-03-15 1990-08-28 Betz Laboratories, Inc. Boiler water treatment
US4931206A (en) * 1988-03-15 1990-06-05 Betz Laboratories, Inc. Boiler water treatment composition
US4828713A (en) * 1988-03-15 1989-05-09 Betz Laboratories, Inc. Boiler water treatment
GB8822149D0 (en) * 1988-09-21 1988-10-26 Ciba Geigy Ag Treatment of aqueous systems
GB8829830D0 (en) * 1988-12-21 1989-02-15 Ciba Geigy Ag Method for treating water
US5135661A (en) * 1989-03-21 1992-08-04 Suresh Patel Process for treating water or aqueous systems
GB8911569D0 (en) * 1989-05-19 1989-07-05 Ciba Geigy Ag Antifreeze compositions
US4937002A (en) * 1989-06-12 1990-06-26 National Starch And Chemical Investment Holding Corporation Interpolymers for barium sulphate inhibition
US5290469A (en) * 1991-07-23 1994-03-01 Basf Corporation Glycol-based polycarboxylate-containing antifreeze/coolant formulations for resisting cavitation erosion-corrosion on aluminum
US5290468A (en) * 1991-07-23 1994-03-01 Basf Corporation Polycarboxylate-containing antifreeze/coolant additive for use in hard water applications
US5288419A (en) * 1991-07-23 1994-02-22 Basf Corporation Glycol-based polycarboxylate-containing antifreeze/coolant formulations for resisting cavitation erosion-corrosion on aluminum
US5320771A (en) * 1991-07-23 1994-06-14 Basf Corp. Polycarboxylate-containing antifreeze/coolant additive for reducing corrosion in heat rejecting aluminum
US5290467A (en) * 1991-07-23 1994-03-01 Basf Corporation Polycarboxylate-containing antifreeze/coolant additive for resisting cavitation erosion-corrosion on aluminum
GB9204409D0 (en) * 1992-02-29 1992-04-15 Ciba Geigy Ag Determination method
DE4300772C2 (en) * 1993-01-14 1997-03-27 Stockhausen Chem Fab Gmbh Water-soluble, biodegradable copolymers based on unsaturated mono- and dicarboxylic acids, process for their preparation and their use
US5389502A (en) * 1994-02-08 1995-02-14 Eastman Kodak Company Hardening developer for silver halide photography and development method
ES2436026B1 (en) * 2012-06-21 2014-04-28 Ramón BLANCO GÓMEZ Composition for boiler water
CN109095627A (en) * 2018-07-26 2018-12-28 锐达工业科技（南京）有限公司 A kind of recirculated water research of non-phosphorus scale inhibitor and preparation method thereof
CN113651436B (en) * 2021-08-25 2023-01-31 河北省科学院能源研究所 Non-phosphorus non-nitrogen scale inhibition and dispersion agent and preparation method and application thereof
CN113621424A (en) * 2021-09-10 2021-11-09 湖南金裕环保科技有限公司 Tube lubricant or pump lubricant for top pump and bottom pump and preparation method thereof

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US2723956A (en) * 1950-09-26 1955-11-15 Nat Aluminate Corp Boiler scale reduction using a copolymer of maleic anhydride and another monoethylenic compound
GB772775A (en) * 1954-06-04 1957-04-17 Monsanto Chemicals A process for treating hard water
DE1286023C2 (en) * 1964-05-30 1973-11-15 Hoechst Ag Process for the production of styrene-maleic anhydride telomerizates
GB1292120A (en) * 1968-12-10 1972-10-11 Economics Lab Detergent compositions
US3617577A (en) * 1969-08-27 1971-11-02 Monsanto Co Method of inhibiting scale formation
GB1369429A (en) * 1970-11-30 1974-10-09 Ciba Geigy Ag Treatment of water or aqueous systems
US3715307A (en) * 1971-06-24 1973-02-06 Economics Lab Treatment of water used in heat transfer equipment

Also Published As

Publication number Publication date
BR7401045D0 (en) 1974-11-05
PL88620B1 (en) 1976-09-30
NL181865B (en) 1987-06-16
SE397954B (en) 1977-11-28
DK146185C (en) 1983-12-12
AR201367A1 (en) 1975-03-07
EG11050A (en) 1976-12-31
AU6504974A (en) 1975-07-31
IT1009636B (en) 1976-12-20
HK26679A (en) 1979-05-04
FR2217274B1 (en) 1977-06-10
DE2405192A1 (en) 1974-08-29
DK146185B (en) 1983-07-18
DE2405192C2 (en) 1986-04-24
ZA74949B (en) 1975-01-29
NL7401903A (en) 1974-08-16
GB1414918A (en) 1975-11-19
JPS5035065A (en) 1975-04-03
IL44110A0 (en) 1974-05-16
NL181865C (en) 1987-11-16
MTP759B (en) 1975-05-27
CY1000A (en) 1979-08-02
SU730293A3 (en) 1980-04-25
FR2217274A1 (en) 1974-09-06
JPS5429998B2 (en) 1979-09-27
CA1019476A (en) 1977-10-18
BE810967A (en) 1974-08-13

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