FR2369215A1 - PROCESS FOR CLARIFYING RAW WATER USED - Google Patents

PROCESS FOR CLARIFYING RAW WATER USED

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Withdrawn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
French (fr)
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/en
Withdrawn legal-status Critical Current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)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (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.The process according to the invention uses, as clarifying agent, a chemically modified polyacrylamide, which contains quaternized dimethylaminomethyl groups, of low molecular mass. Modification of the dimethylaminomethyl groups is carried out by quaternization with methyl chloride or with dimethyl sulfate.

FR7731980A 1976-10-26 1977-10-24 PROCESS FOR CLARIFYING RAW WATER USED Withdrawn FR2369215A1 (en)

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 (en) 1978-05-26

Family

ID=27112915

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731980A Withdrawn FR2369215A1 (en) 1976-10-26 1977-10-24 PROCESS FOR CLARIFYING RAW WATER USED

Country Status (10)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344692A2 (en) * 1988-05-31 1989-12-06 Mitsubishi Rayon Co., Ltd. Process for preparation of antistatic agent and methacrylic resin composition
WO1992000247A1 (en) * 1990-06-29 1992-01-09 Allied Colloids Limited Purification of aqueous liquor
EP0610955A2 (en) * 1993-02-12 1994-08-17 Cytec Technology Corp. Quaternized aminomethyl acrylamide polymermicroemulsions, methods of producing and use of same

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 (en) * 2022-11-28 2023-07-11 嘉兴沃特泰科环保科技股份有限公司 Floating auxiliary agent for water recovery system and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168036A (en) * 1955-12-05 1958-12-03 Dow Chemical Co Process for clarifying water
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 (en) * 1955-12-05 1958-12-03 Dow Chemical Co Process for clarifying water
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344692A2 (en) * 1988-05-31 1989-12-06 Mitsubishi Rayon Co., Ltd. Process for preparation of antistatic agent and methacrylic resin composition
EP0344692A3 (en) * 1988-05-31 1991-06-12 Mitsubishi Rayon Co., Ltd. Process for preparation of antistatic agent and methacrylic resin composition
US5164452A (en) * 1988-05-31 1992-11-17 Mitsubishi Rayon Company Ltd. Process for preparation of antistatic agent and methacrylic resin composition
WO1992000247A1 (en) * 1990-06-29 1992-01-09 Allied Colloids Limited Purification of aqueous liquor
EP0610955A2 (en) * 1993-02-12 1994-08-17 Cytec Technology Corp. Quaternized aminomethyl acrylamide polymermicroemulsions, methods of producing and use of same
EP0610955A3 (en) * 1993-02-12 1995-01-18 Cytec Tech Corp Quaternized aminomethyl acrylamide polymermicroemulsions, methods of producing and use of same.
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
DE2746102A1 (en) 1978-04-27
BR7707091A (en) 1978-08-01
AU515197B2 (en) 1981-03-19
CA1085522A (en) 1980-09-09
NL7711749A (en) 1978-04-28
ES463547A1 (en) 1979-10-16
GB1588342A (en) 1981-04-23
JPS5389255A (en) 1978-08-05
IT1090037B (en) 1985-06-18
AU2887177A (en) 1979-03-22

Similar Documents

Publication Publication Date Title
BE824042A (en) PROCESS FOR IMPROVING THE QUALITY OF DRAINAGE WATER FROM SPREADING AREAS.
ATE66229T1 (en) PROCESS FOR THE PRODUCTION OF (6R)-TETRAHYDRO-L-BIOPTERIN.
FR2387243A1 (en) PROCESS FOR PURIFYING MICROBIAL EXTRACTS CONTAINING ENZYMES
ATE15377T1 (en) POLYMERS OF ALPHA,BETA-UNSATURATED N-SUBSTITUTED CARBONIC ACID AMIDES AND THEIR USE AS SEDIMENTATION, FLOCKING, DRAINAGE AND RETENTION AGENTS.
FR2419261A1 (en) PROCESS FOR THE PRODUCTION OF CEMENT-BASED HARDENING BINDERS
FR2369215A1 (en) PROCESS FOR CLARIFYING RAW WATER USED
FR2372850A1 (en) CATALYSTS FOR THE PRODUCTION OF POLYURETHANNES
FR2434173A1 (en) ANTIMONY MERCAPTIDES FOR USE AS PROCESSING STABILIZERS FOR VINYL HALIDE RESINS
FR2436144A1 (en) NOVEL AURON DERIVATIVES, THEIR PREPARATION PROCESS AND THEIR USE AS PHARMACEUTICALS
FR2366359A1 (en) PROCESS FOR THE EXTRACTION OF MICRO-ORGANISMS AND PRODUCTS OBTAINED USABLE AS DIAGNOSTIC AGENTS
FR2374302A1 (en) NEW HALOGENETHYL-SULPHONES, THEIR PREPARATION PROCESS AND THEIR APPLICATION AS PLANT GROWTH SUBSTANCES
FR2435525A1 (en) METHOD FOR IMPROVING THE HARDNESS OF A BACTERIAL CELL AGGREGATE
FR2396015A1 (en) ACETYLENE DERIVATIVES, THEIR PROCESS FOR PREPARATION AND THEIR USE AS MONOAMINE OXIDASE INHIBITORS FOR TREATING IN PARTICULAR DEPRESSIVE STATE OR HYPERTENSION
BE814440A (en) DISPERSIONS OF ETHYLENE COPOLYMERS USEFUL AS WATER-REPELLENT COATINGS
BE812197A (en) PROCESS FOR THE PREPARATION OF ORGANOPOLYSILOXANES CONTAINING GROUPS OF SULPHONIC ACID
KR860000225A (en) Dehydration accelerator of granular slag and treatment method
JPS54151915A (en) Purification of acrylonitrile
ATE139753T1 (en) METHOD FOR PURIFYING PRODUCT WATER OR WASTEWATER CONTAINING WOOD RESIN
BE823549A (en) CONTINUOUS PASSIVATION PROCESS OF IRON SPONGES PARTICLES.
GB1341971A (en) Dewatering of sludges
JPS57126452A (en) Preparation of quaternary ammonium salt
BE808258A (en) INSTALLATION FOR THE TREATMENT OF SLUDGE, ESPECIALLY WASTEWATER SLUDGE
BE800149A (en) 2,4-DIALKYLAMMONIUM DICHLOROPHENOXYACETATES AS AGENTS FOR REGULATING THE GROWTH OF PLANTS AND A PROCESS FOR THE PREPATATION
BE857453A (en) PROCESS FOR THE REFINING OF STEELS HAVING A CARBON CONTENT OF 3.1 TO 3.8% BY WEIGHT
FR2418235A1 (en) PROCESS FOR PREPARING 7-IMIDAZOLIDINYL ACIDS SUBSTITUTES 3-CHLORO-3-CEPHEM-4-CARBOXYLIC AND NEW PRODUCTS THUS OBTAINED, USED IN PARTICULAR AS ANTIBACTERIAL AGENTS

Legal Events

Date Code Title Description
RE Withdrawal of published application