WO2001057309A3 - Procede de blanchiment de pates desencrees et/ou recyclees - Google Patents

Procede de blanchiment de pates desencrees et/ou recyclees Download PDF

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Publication number
WO2001057309A3
WO2001057309A3 PCT/FR2001/000214 FR0100214W WO0157309A3 WO 2001057309 A3 WO2001057309 A3 WO 2001057309A3 FR 0100214 W FR0100214 W FR 0100214W WO 0157309 A3 WO0157309 A3 WO 0157309A3
Authority
WO
WIPO (PCT)
Prior art keywords
inked
bleaching
pulps
recycled pulps
invention concerns
Prior art date
Application number
PCT/FR2001/000214
Other languages
English (en)
Other versions
WO2001057309A2 (fr
Inventor
Laurence Briois
Laurent Fraisse
Alain Rabion
Original Assignee
Atofina
Laurence Briois
Laurent Fraisse
Alain Rabion
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 Atofina, Laurence Briois, Laurent Fraisse, Alain Rabion filed Critical Atofina
Priority to AU35586/01A priority Critical patent/AU3558601A/en
Publication of WO2001057309A2 publication Critical patent/WO2001057309A2/fr
Publication of WO2001057309A3 publication Critical patent/WO2001057309A3/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un procédé d'oxydation de colorants fixés sur des pâtes dérivant de papiers récupérés et/ou désencrés. Elle a plus particulièrement pour objet un procédé de blanchiment de pâtes désencrées et/ou recyclées caractérisé en ce que la pâte est soumise à l'action d'un agent oxydant en présence d'au moins un complexe métallique.
PCT/FR2001/000214 2000-02-02 2001-01-23 Procede de blanchiment de pates desencrees et/ou recyclees WO2001057309A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35586/01A AU3558601A (en) 2000-02-02 2001-01-23 Method for bleaching de-inked and/or recycled pulps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR00/01280 2000-02-02
FR0001280A FR2804446B1 (fr) 2000-02-02 2000-02-02 Procede de blanchiment de pates desencrees et/ou recyclees

Publications (2)

Publication Number Publication Date
WO2001057309A2 WO2001057309A2 (fr) 2001-08-09
WO2001057309A3 true WO2001057309A3 (fr) 2001-12-20

Family

ID=8846561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2001/000214 WO2001057309A2 (fr) 2000-02-02 2001-01-23 Procede de blanchiment de pates desencrees et/ou recyclees

Country Status (3)

Country Link
AU (1) AU3558601A (fr)
FR (1) FR2804446B1 (fr)
WO (1) WO2001057309A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842200B1 (fr) * 2002-07-12 2005-12-16 Centre Nat Rech Scient Procede pour l'obtention de polysaccharides modifies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588767A1 (fr) * 1992-09-14 1994-03-23 Ciba-Geigy Ag Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois
GB2279657A (en) * 1993-07-09 1995-01-11 Zeneca Ltd Phthalocyanines
WO1999009244A1 (fr) * 1997-08-14 1999-02-25 Takashi Watanabe Procede chimique de depolymerisation de la lignine
US5877389A (en) * 1994-02-28 1999-03-02 Elf Aquitaine Process for the oxidative decomposition of organic compounds present in aqueous effluents

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588767A1 (fr) * 1992-09-14 1994-03-23 Ciba-Geigy Ag Procédé pur améliorer la blancheur, la clarté et la couleur de matières fibreuses en bois
GB2279657A (en) * 1993-07-09 1995-01-11 Zeneca Ltd Phthalocyanines
US5877389A (en) * 1994-02-28 1999-03-02 Elf Aquitaine Process for the oxidative decomposition of organic compounds present in aqueous effluents
WO1999009244A1 (fr) * 1997-08-14 1999-02-25 Takashi Watanabe Procede chimique de depolymerisation de la lignine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SELDER, H. ET AL: "Katalytische Bleiche und Farbortkorrektur von Zellstoff, Holzstoff und Altpapier", WOCHENBL. PAPIERFABR. 123, NO. 10: 417-420, 422-423 (MAY 31, 1995). [GER.;ENGL. SUM.], XP000912140 *
VON RAVEN, A.: "Katalytische Bleiche und farbkorrektur von Zellstoff, holzstoff und Altpapier. Teil II", WOCHENBL. PAPIERFABR. 123, NO. 10: 424-427 (MAY 31, 1995). [GER.;ENGL. SUM.] CF. ABIPST 66: ABSTR. 15482., XP000900966 *

Also Published As

Publication number Publication date
WO2001057309A2 (fr) 2001-08-09
FR2804446B1 (fr) 2003-01-17
FR2804446A1 (fr) 2001-08-03
AU3558601A (en) 2001-08-14

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