GB1534596A - Control of scaling in an aqueous medium - Google Patents

Control of scaling in an aqueous medium

Info

Publication number
GB1534596A
GB1534596A GB3712576A GB3712576A GB1534596A GB 1534596 A GB1534596 A GB 1534596A GB 3712576 A GB3712576 A GB 3712576A GB 3712576 A GB3712576 A GB 3712576A GB 1534596 A GB1534596 A GB 1534596A
Authority
GB
United Kingdom
Prior art keywords
scaling
control
aqueous medium
sept
styrene
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.)
Expired
Application number
GB3712576A
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 International USA Inc
Original Assignee
Betz International 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 International Inc filed Critical Betz International Inc
Publication of GB1534596A publication Critical patent/GB1534596A/en
Expired 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

Abstract

1534596 Inhibiting scale formation BETZ INTERNATIONAL Inc 8 Sept 1976 [8 Sept 1975 25 May 1976] 37125 Heading C1C The deposition of scale and sludges in aqueous media is controlled by adding a copolymer of a styrene sulphonic acid and maleic anydride, the styrene moieties exceeding the maleic anhydride moieties.
GB3712576A 1975-09-08 1976-09-08 Control of scaling in an aqueous medium Expired GB1534596A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61095275A 1975-09-08 1975-09-08
US68975576A 1976-05-25 1976-05-25

Publications (1)

Publication Number Publication Date
GB1534596A true GB1534596A (en) 1978-12-06

Family

ID=27086397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3712576A Expired GB1534596A (en) 1975-09-08 1976-09-08 Control of scaling in an aqueous medium

Country Status (4)

Country Link
CA (1) CA1062983A (en)
FR (1) FR2322831A1 (en)
GB (1) GB1534596A (en)
NL (1) NL164538C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001505A1 (en) * 1979-01-30 1980-08-14 Metallgesellschaft Ag Corrosion inhibitor contg. molybdate, amine and opt. auxiliary - e.g. sodium polymethacrylate, used in closed water system opt. contg. ethylene glycol
US4255259A (en) 1979-09-18 1981-03-10 Chemed Corporation Scale inhibition
DE3039356A1 (en) * 1979-10-23 1981-05-14 Dearborn Chemicals Ltd., Widnes, Cheshire TREATMENT OF WATER OR AQUEOUS SYSTEMS
US4306991A (en) 1979-09-18 1981-12-22 Chemed Corporation Scale inhibition
US4836933A (en) * 1987-01-16 1989-06-06 National Starch And Chemical Corporation Water treatment polymer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048066A (en) * 1976-11-17 1977-09-13 Chemed Corporation Method of inhibiting scale
CA1114978A (en) * 1978-06-15 1981-12-22 Chih M. Hwa Sludge conditioning composition for scale inhibition in water

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001505A1 (en) * 1979-01-30 1980-08-14 Metallgesellschaft Ag Corrosion inhibitor contg. molybdate, amine and opt. auxiliary - e.g. sodium polymethacrylate, used in closed water system opt. contg. ethylene glycol
US4255259A (en) 1979-09-18 1981-03-10 Chemed Corporation Scale inhibition
US4306991A (en) 1979-09-18 1981-12-22 Chemed Corporation Scale inhibition
DE3039356A1 (en) * 1979-10-23 1981-05-14 Dearborn Chemicals Ltd., Widnes, Cheshire TREATMENT OF WATER OR AQUEOUS SYSTEMS
US4432879A (en) * 1979-10-23 1984-02-21 Dearborn Chemicals, Ltd. Treatment of aqueous systems
US4836933A (en) * 1987-01-16 1989-06-06 National Starch And Chemical Corporation Water treatment polymer

Also Published As

Publication number Publication date
NL164538C (en) 1981-01-15
FR2322831B1 (en) 1980-04-30
NL7609910A (en) 1977-03-10
CA1062983A (en) 1979-09-25
NL164538B (en) 1980-08-15
FR2322831A1 (en) 1977-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930908