DE3674407D1 - Verfahren zur verhuetung von durch phosphate verursachten metallionenniederschlaegen in wasser. - Google Patents

Verfahren zur verhuetung von durch phosphate verursachten metallionenniederschlaegen in wasser.

Info

Publication number
DE3674407D1
DE3674407D1 DE8686201341T DE3674407T DE3674407D1 DE 3674407 D1 DE3674407 D1 DE 3674407D1 DE 8686201341 T DE8686201341 T DE 8686201341T DE 3674407 T DE3674407 T DE 3674407T DE 3674407 D1 DE3674407 D1 DE 3674407D1
Authority
DE
Germany
Prior art keywords
metalion
phosphates
deposition
preventing
water caused
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 - Fee Related
Application number
DE8686201341T
Other languages
English (en)
Inventor
Peter Thevissen
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.)
DENAC NV
Original Assignee
DENAC NV
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 DENAC NV filed Critical DENAC NV
Application granted granted Critical
Publication of DE3674407D1 publication Critical patent/DE3674407D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C02F5/145—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 combined with inorganic substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
DE8686201341T 1986-07-30 1986-07-30 Verfahren zur verhuetung von durch phosphate verursachten metallionenniederschlaegen in wasser. Expired - Fee Related DE3674407D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86201341A EP0254774B1 (de) 1986-07-30 1986-07-30 Verfahren zur Verhütung von durch phosphate verursachten Metallionenniederschlägen in Wasser

Publications (1)

Publication Number Publication Date
DE3674407D1 true DE3674407D1 (de) 1990-10-25

Family

ID=8195773

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686201341T Expired - Fee Related DE3674407D1 (de) 1986-07-30 1986-07-30 Verfahren zur verhuetung von durch phosphate verursachten metallionenniederschlaegen in wasser.

Country Status (3)

Country Link
EP (1) EP0254774B1 (de)
AT (1) ATE56687T1 (de)
DE (1) DE3674407D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783267A (en) * 1987-06-29 1988-11-08 Calgon Corporation Method for stabilizing metal ions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506874A (nl) * 1974-06-10 1975-12-12 Grace W R & Co Werkwijze voor het verhinderen van de afzetting van ketelsteen op de warmteuitwisselingsopper- vlakken van een verdamper.
CA1234033A (en) * 1983-10-26 1988-03-15 Fu Chen Water treatment polymers and methods of use thereof
US4575425A (en) * 1984-12-24 1986-03-11 Calgon Corporation Process for controlling calcium oxalate scale over a wide pH range

Also Published As

Publication number Publication date
EP0254774A1 (de) 1988-02-03
ATE56687T1 (de) 1990-10-15
EP0254774B1 (de) 1990-09-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee