CA2167612A1 - Method of controlling fluoride scale formation in aqueous systems - Google Patents

Method of controlling fluoride scale formation in aqueous systems

Info

Publication number
CA2167612A1
CA2167612A1 CA002167612A CA2167612A CA2167612A1 CA 2167612 A1 CA2167612 A1 CA 2167612A1 CA 002167612 A CA002167612 A CA 002167612A CA 2167612 A CA2167612 A CA 2167612A CA 2167612 A1 CA2167612 A1 CA 2167612A1
Authority
CA
Canada
Prior art keywords
aqueous systems
scale formation
formation
alkyl
hydrogen
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002167612A
Other languages
French (fr)
Other versions
CA2167612C (en
Inventor
Jennifer J. Robertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suez WTS USA Inc
Original Assignee
Betz Laboratories Inc
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 Betz Laboratories Inc filed Critical Betz Laboratories Inc
Priority to CA002167612A priority Critical patent/CA2167612C/en
Publication of CA2167612A1 publication Critical patent/CA2167612A1/en
Application granted granted Critical
Publication of CA2167612C publication Critical patent/CA2167612C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates

Abstract

A method of treating water to inhibit the formation of fluoride salt scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of fluoride containing salts in spray water cooling systems such as steel casting systems. The method comprises introducing into the aqueous system an alkyl epoxy carboxylate of the general formula: (see formula I) where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na+, NH4+ or K+ and R is hydrogen, C1-4 alkyl or C1-4 substituted alkyl.
CA002167612A 1996-01-19 1996-01-19 Method of controlling fluoride scale formation in aqueous systems Expired - Lifetime CA2167612C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002167612A CA2167612C (en) 1996-01-19 1996-01-19 Method of controlling fluoride scale formation in aqueous systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002167612A CA2167612C (en) 1996-01-19 1996-01-19 Method of controlling fluoride scale formation in aqueous systems

Publications (2)

Publication Number Publication Date
CA2167612A1 true CA2167612A1 (en) 1997-07-20
CA2167612C CA2167612C (en) 2007-05-29

Family

ID=4157387

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002167612A Expired - Lifetime CA2167612C (en) 1996-01-19 1996-01-19 Method of controlling fluoride scale formation in aqueous systems

Country Status (1)

Country Link
CA (1) CA2167612C (en)

Also Published As

Publication number Publication date
CA2167612C (en) 2007-05-29

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Effective date: 20160119