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FR2369215A1 - Procede pour clarifier des eaux brutes util - Google Patents

Procede pour clarifier des eaux brutes util

Info

Publication number
FR2369215A1
FR2369215A1 FR7731980A FR7731980A FR2369215A1 FR 2369215 A1 FR2369215 A1 FR 2369215A1 FR 7731980 A FR7731980 A FR 7731980A FR 7731980 A FR7731980 A FR 7731980A FR 2369215 A1 FR2369215 A1 FR 2369215A1
Authority
FR
France
Prior art keywords
raw water
water used
clarifying raw
clarifying
dimethylaminomethyl groups
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.)
Withdrawn
Application number
FR7731980A
Other languages
English (en)
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 claimed from US05/792,746 external-priority patent/US4137165A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2369215A1 publication Critical patent/FR2369215A1/fr
Withdrawn legal-status Critical Current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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Le procédé selon l'invention utilise, comme agent clarifiant, un polyacrylamide chimiquement modifié, qui contient des groupes diméthylaminométhyle quaternisés, de faible masse moléculaire. La modification des groupes diméthylaminométhyle est effectuée par quaternisation avec le chlorure de méthyle ou avec le sulfate de diméthyle.
FR7731980A 1976-10-26 1977-10-24 Procede pour clarifier des eaux brutes util Withdrawn FR2369215A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73557776A 1976-10-26 1976-10-26
US05/792,746 US4137165A (en) 1976-10-26 1977-05-02 Process for clarifying raw water

Publications (1)

Publication Number Publication Date
FR2369215A1 true FR2369215A1 (fr) 1978-05-26

Family

ID=27112915

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731980A Withdrawn FR2369215A1 (fr) 1976-10-26 1977-10-24 Procede pour clarifier des eaux brutes util

Country Status (10)

Country Link
JP (1) JPS5389255A (fr)
AU (1) AU515197B2 (fr)
BR (1) BR7707091A (fr)
CA (1) CA1085522A (fr)
DE (1) DE2746102A1 (fr)
ES (1) ES463547A1 (fr)
FR (1) FR2369215A1 (fr)
GB (1) GB1588342A (fr)
IT (1) IT1090037B (fr)
NL (1) NL7711749A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344692A3 (fr) * 1988-05-31 1991-06-12 Mitsubishi Rayon Co., Ltd. Procédé de préparation d'un agent antistatique et composition de résine méthacrylique
WO1992000247A1 (fr) * 1990-06-29 1992-01-09 Allied Colloids Limited Purification d'une liqueur aqueuse
EP0610955A3 (fr) * 1993-02-12 1995-01-18 Cytec Tech Corp Micro-émulsions de polymères quaternisés d'acrylamide amino-méthylique, leur procédé de préparation et leur application.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8512937D0 (en) * 1985-05-22 1985-06-26 Allied Colloids Ltd Water treatment
CN115784358B (zh) * 2022-11-28 2023-07-11 嘉兴沃特泰科环保科技股份有限公司 一种水回收系统用上浮助剂及其制备方法和应用

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168036A (fr) * 1955-12-05 1958-12-03 Dow Chemical Co Procédé pour clarifier l'eau
GB1091087A (en) * 1964-08-04 1967-11-15 Dow Chemical Co Flocculant composition and method of flocculating
US3897333A (en) * 1971-02-24 1975-07-29 Allied Colloids Mfg Flocculating agents

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168036A (fr) * 1955-12-05 1958-12-03 Dow Chemical Co Procédé pour clarifier l'eau
GB1091087A (en) * 1964-08-04 1967-11-15 Dow Chemical Co Flocculant composition and method of flocculating
US3897333A (en) * 1971-02-24 1975-07-29 Allied Colloids Mfg Flocculating agents

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344692A3 (fr) * 1988-05-31 1991-06-12 Mitsubishi Rayon Co., Ltd. Procédé de préparation d'un agent antistatique et composition de résine méthacrylique
US5164452A (en) * 1988-05-31 1992-11-17 Mitsubishi Rayon Company Ltd. Process for preparation of antistatic agent and methacrylic resin composition
WO1992000247A1 (fr) * 1990-06-29 1992-01-09 Allied Colloids Limited Purification d'une liqueur aqueuse
EP0610955A3 (fr) * 1993-02-12 1995-01-18 Cytec Tech Corp Micro-émulsions de polymères quaternisés d'acrylamide amino-méthylique, leur procédé de préparation et leur application.
US5627260A (en) * 1993-02-12 1997-05-06 Cytec Technology Corp. Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance
US5670615A (en) * 1993-02-12 1997-09-23 Cytec Technology Corp. Quaternized tertiary aminomethyl acrylamide polymer microemulsions with improved performance

Also Published As

Publication number Publication date
GB1588342A (en) 1981-04-23
AU515197B2 (en) 1981-03-19
CA1085522A (fr) 1980-09-09
JPS5389255A (en) 1978-08-05
AU2887177A (en) 1979-03-22
DE2746102A1 (de) 1978-04-27
BR7707091A (pt) 1978-08-01
NL7711749A (nl) 1978-04-28
IT1090037B (it) 1985-06-18
ES463547A1 (es) 1979-10-16

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Legal Events

Date Code Title Description
RE Withdrawal of published application