EP1137600A4 - Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters - Google Patents

Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters

Info

Publication number
EP1137600A4
EP1137600A4 EP98960685A EP98960685A EP1137600A4 EP 1137600 A4 EP1137600 A4 EP 1137600A4 EP 98960685 A EP98960685 A EP 98960685A EP 98960685 A EP98960685 A EP 98960685A EP 1137600 A4 EP1137600 A4 EP 1137600A4
Authority
EP
European Patent Office
Prior art keywords
clarification
acrylamide
ammonium chloride
diallyldimethyl ammonium
process waters
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Withdrawn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
EP98960685A
Other languages
German (de)
French (fr)
Other versions
EP1137600A1 (en
Inventor
Jane Beryl Wong Shing
Karen Tubergen
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.)
ChampionX LLC
Original Assignee
Nalco Chemical 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
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Priority claimed from PCT/US1998/025643 external-priority patent/WO2000032519A1/en
Publication of EP1137600A1 publication Critical patent/EP1137600A1/en
Publication of EP1137600A4 publication Critical patent/EP1137600A4/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Withdrawn legal-status Critical Current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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/917—Color
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/928—Paper mill waste, e.g. white water, black liquor treated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Physical Water Treatments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Paper (AREA)
EP98960685A 1998-12-03 1998-12-03 Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters Withdrawn EP1137600A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/025643 WO2000032519A1 (en) 1996-11-01 1998-12-03 Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters

Publications (2)

Publication Number Publication Date
EP1137600A1 EP1137600A1 (en) 2001-10-04
EP1137600A4 true EP1137600A4 (en) 2003-03-05

Family

ID=22268416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98960685A Withdrawn EP1137600A4 (en) 1998-12-03 1998-12-03 Hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide for the clarification of deinking process waters

Country Status (6)

Country Link
EP (1) EP1137600A4 (en)
JP (1) JP2002531248A (en)
KR (1) KR100579764B1 (en)
AU (1) AU764315B2 (en)
CA (1) CA2351855A1 (en)
NO (1) NO20012713L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2941733T3 (en) * 2017-12-15 2023-05-25 Kemira Oyj Method for treatment of aqueous feed by dissolved gas flotation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178770A (en) * 1991-07-12 1993-01-12 Nalco Canada Inc. Method of treating bctmp/ctmp wastewater
US5454955A (en) * 1994-03-25 1995-10-03 Nalco Chemical Company Use of hectorite as a clarification aid for deink plant effluent
US5681480A (en) * 1991-08-02 1997-10-28 Allied Colloids Limited Dewatering of aqueous suspensions
EP0839767A2 (en) * 1996-11-01 1998-05-06 Nalco Chemical Company Hydrophilic dispersion polymers for the clarification of deinking process waters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178770A (en) * 1991-07-12 1993-01-12 Nalco Canada Inc. Method of treating bctmp/ctmp wastewater
EP0522334A1 (en) * 1991-07-12 1993-01-13 Nalco Chemical Company A method of treating BCTMP/CTMP wastewater
US5681480A (en) * 1991-08-02 1997-10-28 Allied Colloids Limited Dewatering of aqueous suspensions
US5454955A (en) * 1994-03-25 1995-10-03 Nalco Chemical Company Use of hectorite as a clarification aid for deink plant effluent
EP0839767A2 (en) * 1996-11-01 1998-05-06 Nalco Chemical Company Hydrophilic dispersion polymers for the clarification of deinking process waters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0032519A1 *

Also Published As

Publication number Publication date
AU764315B2 (en) 2003-08-14
CA2351855A1 (en) 2000-06-08
JP2002531248A (en) 2002-09-24
KR100579764B1 (en) 2006-05-15
NO20012713L (en) 2001-07-31
AU1622799A (en) 2000-06-19
EP1137600A1 (en) 2001-10-04
KR20010107999A (en) 2001-12-07
NO20012713D0 (en) 2001-06-01

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Legal Events

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Effective date: 20051224