ATE76856T1 - Verfahren zur bekaempfung von kesselstein in waesserigen systemen mittels polymeren vom typ quaternaeres ammoniummaleinsaeureanhydrid. - Google Patents

Verfahren zur bekaempfung von kesselstein in waesserigen systemen mittels polymeren vom typ quaternaeres ammoniummaleinsaeureanhydrid.

Info

Publication number
ATE76856T1
ATE76856T1 AT89201697T AT89201697T ATE76856T1 AT E76856 T1 ATE76856 T1 AT E76856T1 AT 89201697 T AT89201697 T AT 89201697T AT 89201697 T AT89201697 T AT 89201697T AT E76856 T1 ATE76856 T1 AT E76856T1
Authority
AT
Austria
Prior art keywords
quaternary ammonium
polymers
maleic acid
acid anhydride
water systems
Prior art date
Application number
AT89201697T
Other languages
English (en)
Inventor
Shih-Ruey Thomas Chen
Craig W Vaughan
Original Assignee
Calgon 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
Application filed by Calgon Corp filed Critical Calgon Corp
Application granted granted Critical
Publication of ATE76856T1 publication Critical patent/ATE76856T1/de

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Sludge (AREA)
  • Colloid Chemistry (AREA)
  • Paper (AREA)
AT89201697T 1988-07-05 1989-06-28 Verfahren zur bekaempfung von kesselstein in waesserigen systemen mittels polymeren vom typ quaternaeres ammoniummaleinsaeureanhydrid. ATE76856T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21497988A 1988-07-05 1988-07-05
EP89201697A EP0350985B1 (de) 1988-07-05 1989-06-28 Verfahren zur Bekämpfung von Kesselstein in wässerigen Systemen mittels Polymeren vom Typ quaternäres Ammoniummaleinsäureanhydrid

Publications (1)

Publication Number Publication Date
ATE76856T1 true ATE76856T1 (de) 1992-06-15

Family

ID=22801151

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89201697T ATE76856T1 (de) 1988-07-05 1989-06-28 Verfahren zur bekaempfung von kesselstein in waesserigen systemen mittels polymeren vom typ quaternaeres ammoniummaleinsaeureanhydrid.

Country Status (9)

Country Link
EP (1) EP0350985B1 (de)
JP (1) JPH0259099A (de)
AT (1) ATE76856T1 (de)
AU (1) AU617195B2 (de)
CA (1) CA1333985C (de)
DE (1) DE68901690T2 (de)
ES (1) ES2031684T3 (de)
GR (1) GR3004893T3 (de)
NZ (1) NZ229715A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725096C2 (de) * 1997-06-13 2001-05-10 Saechsisches Textilforsch Inst Verfahren zur Eliminierung von Reaktivfarbstoffen und deren Hydrolysaten aus Abwässern
CN103130343A (zh) * 2011-11-30 2013-06-05 安徽省蓝天化工有限公司 一种海水淡化用阻垢缓蚀分散剂的制备方法
CN114426339A (zh) * 2021-12-30 2022-05-03 中国石油化工股份有限公司 一种油田硫酸钡分散阻垢剂及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772775A (en) * 1954-06-04 1957-04-17 Monsanto Chemicals A process for treating hard water
GB1287489A (en) * 1969-06-19 1972-08-31 Calgon Corp Water purification
US3715307A (en) * 1971-06-24 1973-02-06 Economics Lab Treatment of water used in heat transfer equipment
DE3700535A1 (de) * 1987-01-10 1988-07-21 Basf Ag Verfahren zur herstellung von wasserloeslichen copoylmerisaten der maleinsaeure und deren verwendung als wasserbehandlungsmittel

Also Published As

Publication number Publication date
DE68901690T2 (de) 1992-12-17
EP0350985A3 (en) 1990-04-25
AU617195B2 (en) 1991-11-21
EP0350985A2 (de) 1990-01-17
EP0350985B1 (de) 1992-06-03
CA1333985C (en) 1995-01-17
JPH0259099A (ja) 1990-02-28
NZ229715A (en) 1991-11-26
ES2031684T3 (es) 1992-12-16
AU3783689A (en) 1990-01-11
DE68901690D1 (de) 1992-07-09
GR3004893T3 (de) 1993-04-28

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee