GB1348595A - Method and composition for conditioning water - Google Patents

Method and composition for conditioning water

Info

Publication number
GB1348595A
GB1348595A GB1300972A GB1300972A GB1348595A GB 1348595 A GB1348595 A GB 1348595A GB 1300972 A GB1300972 A GB 1300972A GB 1300972 A GB1300972 A GB 1300972A GB 1348595 A GB1348595 A GB 1348595A
Authority
GB
United Kingdom
Prior art keywords
reacting
corrosion
scale
inhibiting
epichlorohydrin
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
GB1300972A
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of GB1348595A publication Critical patent/GB1348595A/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
    • C02F5/12—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 nitrogen
    • C02F5/125—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 nitrogen combined with inorganic substances
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

1348595 Inhibiting scale and corrosion HERCULES Inc 20 March 1972 [24 March 1971 28 Feb 1972] 13009/72 Heading C7E A corrosion- and scale-inhibiting composition for addition to water in contact with metals comprises (A) (1) an inorganic polyphosphate having a molar ratio of alkali metal oxide, alkaline earth metal oxide and/or Zn 0 to P 2 O 5 of 0À4:1 to 2:1 or a corresponding acid (H 2 O: P 2 O 5 = 0À4:1 to 2:1) or (2) an ester R-(OPO 3 H 2 ) x where R is the hydrocarbyl group of a polyhydric alcohol and x = 2-6 and (B) (1) a polyamide containing quaternary NH 4 groups obtained by reacting a polyalkylene polyamine having two primary -NH 2 groups and at least one secondary =NH group with a C 3 -C 8 saturated dicarboxylic acid and reacting the resulting polyamide with an alkylating agent and/or epichlorohydrin or (2) a polyureylene containing quaternary NH 4 groups obtained by reacting a polyalkylene polyamine (as above) with urea and reacting the resulting polymer with an alkylating agent or epichlorohydrin;'the weight ratio (A) to (B) is 2:1 to 50:1. Typical polyphosphates are K 4 P 2 O 7 , H 4 P 2 O 7 , and (NaPO 3 ) 6 ; 5-500 ppm may be maintained in water together with 0À2 - 20 ppm polymer, injected together or separately, each as aqueous solutions, to give a synergetic corrosion- and scale-inhibiting effect, with metals such as steel, Zn, Cu, Al, and their alloys.
GB1300972A 1971-03-24 1972-03-20 Method and composition for conditioning water Expired GB1348595A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12775671A 1971-03-24 1971-03-24
US23006072A 1972-02-28 1972-02-28

Publications (1)

Publication Number Publication Date
GB1348595A true GB1348595A (en) 1974-03-20

Family

ID=26825941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1300972A Expired GB1348595A (en) 1971-03-24 1972-03-20 Method and composition for conditioning water

Country Status (8)

Country Link
BE (1) BE781252A (en)
CA (1) CA979317A (en)
DE (1) DE2214494A1 (en)
FR (1) FR2130717B1 (en)
GB (1) GB1348595A (en)
IT (1) IT953549B (en)
NL (1) NL7204031A (en)
SE (1) SE377930B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168359A (en) * 1984-11-08 1986-06-18 Dearborn Chemicals Co A method of inhibiting corrosion in aqueous systems
US4692316A (en) * 1984-03-20 1987-09-08 Dearborn Chemicals Limited Method of inhibiting corrosion in aqueous systems
US4692315A (en) * 1984-04-25 1987-09-08 Dearborn Chemicals Limited Method of inhibiting corrosion in aqueous systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501357B1 (en) * 1981-03-04 1988-01-15 Permo PROCESS FOR CLEARING CIRCUITS IN THERMAL EXCHANGE PLANTS USING WATER
DE19706410C2 (en) * 1997-02-19 2001-04-05 Metakorin Wasser Chemie Gmbh Process and agent for the anti-corrosion treatment of water-bearing metal systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036305A (en) * 1959-06-23 1962-05-22 Wright Chem Corp Treatment of water
GR35176B (en) * 1966-08-31 1968-08-22 Rohm And Haas Company RESTRICTION OF CORROSION AND METAL DEPOSITS, DETERMINATION OF IRON DISSOLVED IN WATER AND REMOVAL OF SUSPENDED SOLID MATERIALS.
FR1544503A (en) * 1966-11-16 1968-10-31 Benckiser Gmbh Joh A Descaler products

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692316A (en) * 1984-03-20 1987-09-08 Dearborn Chemicals Limited Method of inhibiting corrosion in aqueous systems
US4692315A (en) * 1984-04-25 1987-09-08 Dearborn Chemicals Limited Method of inhibiting corrosion in aqueous systems
GB2168359A (en) * 1984-11-08 1986-06-18 Dearborn Chemicals Co A method of inhibiting corrosion in aqueous systems
US4692317A (en) * 1984-11-08 1987-09-08 W. R. Grace & Co. Corrosion control in aqueous systems using cationic polymers in combination with phosphonohydroxyacetic acid

Also Published As

Publication number Publication date
BE781252A (en) 1972-07-17
NL7204031A (en) 1972-09-26
SE377930B (en) 1975-08-04
DE2214494A1 (en) 1972-10-05
FR2130717B1 (en) 1977-07-22
CA979317A (en) 1975-12-09
IT953549B (en) 1973-08-10
FR2130717A1 (en) 1972-11-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee