GB1480831A - Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment - Google Patents

Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment

Info

Publication number
GB1480831A
GB1480831A GB26817/74A GB2681774A GB1480831A GB 1480831 A GB1480831 A GB 1480831A GB 26817/74 A GB26817/74 A GB 26817/74A GB 2681774 A GB2681774 A GB 2681774A GB 1480831 A GB1480831 A GB 1480831A
Authority
GB
United Kingdom
Prior art keywords
water
polyacrylate
phosphonic acid
acid treatment
aqueous systems
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
GB26817/74A
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.)
Chemed Corp
Original Assignee
Chemed Corp
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
Priority to US350875A priority Critical patent/US3890228A/en
Priority claimed from US350875A external-priority patent/US3890228A/en
Application filed by Chemed Corp filed Critical Chemed Corp
Priority to GB26817/74A priority patent/GB1480831A/en
Priority to DE19742458704 priority patent/DE2458704A1/en
Publication of GB1480831A publication Critical patent/GB1480831A/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
    • 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
    • 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

Abstract

1480831 Treating water CHEMED CORP 17 June 1974 26817/74 Addition to 1,208,827 Heading ClC [Also in Division C7] Water is treated to inhibit the deposition of scale and sludge by adding thereto from 0À1 to less than 2 p.p.m. of a mixture of (a) an acrylic acid, or methacrylic acid polymer or copolymers thereof and water-soluble salts thereof, said polymers having an average M.wt. of 500- 1,000,000 and (b) a polyphosphonic acid of formula wherein m is an integer from 1-10, R 1 is H of C 1-6 alkyl, R 2 is OH, H or C 1-6 alkyl, R 3 is C 1-10 alkyl, benzyl or phenyl and R<SP>1</SP> is C 1-10 alkylene or a water-soluble salt thereof.
GB26817/74A 1973-04-13 1974-06-17 Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment Expired GB1480831A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US350875A US3890228A (en) 1973-04-13 1973-04-13 Polyacrylate-polyphosphonic acid treatment in aqueous systems
GB26817/74A GB1480831A (en) 1973-04-13 1974-06-17 Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment
DE19742458704 DE2458704A1 (en) 1973-04-13 1974-12-11 METHOD TO PREVENT THE PREPOSITION OF STONE, SLUDGE AND OTHER POLLUTANTS IN AQUATIC SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US350875A US3890228A (en) 1973-04-13 1973-04-13 Polyacrylate-polyphosphonic acid treatment in aqueous systems
GB26817/74A GB1480831A (en) 1973-04-13 1974-06-17 Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment

Publications (1)

Publication Number Publication Date
GB1480831A true GB1480831A (en) 1977-07-27

Family

ID=26258443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26817/74A Expired GB1480831A (en) 1973-04-13 1974-06-17 Inhibiting deposits in aqueous systems using polyacrylate-phosphonic acid treatment

Country Status (1)

Country Link
GB (1) GB1480831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173183A (en) * 1985-03-14 1986-10-08 British Petroleum Co Plc Scale inhibitors
CN114728863A (en) * 2019-10-29 2022-07-08 索理思科技开曼公司 CaSO reduction in pressure oxidation autoclaves and/or adjacent circuits4And Fe2O3Formation of deposits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173183A (en) * 1985-03-14 1986-10-08 British Petroleum Co Plc Scale inhibitors
CN114728863A (en) * 2019-10-29 2022-07-08 索理思科技开曼公司 CaSO reduction in pressure oxidation autoclaves and/or adjacent circuits4And Fe2O3Formation of deposits
CN114728863B (en) * 2019-10-29 2023-09-12 索理思科技开曼公司 Reduction of CaSO content in pressure oxidation autoclave and/or adjacent loop 4 And Fe (Fe) 2 O 3 Deposit formation

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee