PT1607519E - Activador para branqueamento de pasta - Google Patents

Activador para branqueamento de pasta Download PDF

Info

Publication number
PT1607519E
PT1607519E PT04253546T PT04253546T PT1607519E PT 1607519 E PT1607519 E PT 1607519E PT 04253546 T PT04253546 T PT 04253546T PT 04253546 T PT04253546 T PT 04253546T PT 1607519 E PT1607519 E PT 1607519E
Authority
PT
Portugal
Prior art keywords
solution
hydrogen peroxide
mixing
water supply
activator
Prior art date
Application number
PT04253546T
Other languages
English (en)
Inventor
Alan Michael Marland
Alison Jane Mathews
Gary Miller
Original Assignee
Warwick Internat Group Ltd
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 Warwick Internat Group Ltd filed Critical Warwick Internat Group Ltd
Publication of PT1607519E publication Critical patent/PT1607519E/pt

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Polyurethanes Or Polyureas (AREA)
PT04253546T 2004-06-14 2004-06-14 Activador para branqueamento de pasta PT1607519E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04253546A EP1607519B1 (en) 2004-06-14 2004-06-14 Activator for pulp bleaching

Publications (1)

Publication Number Publication Date
PT1607519E true PT1607519E (pt) 2008-04-16

Family

ID=34930404

Family Applications (1)

Application Number Title Priority Date Filing Date
PT04253546T PT1607519E (pt) 2004-06-14 2004-06-14 Activador para branqueamento de pasta

Country Status (9)

Country Link
US (1) US20070246177A1 (pt)
EP (1) EP1607519B1 (pt)
AT (1) ATE386837T1 (pt)
CA (1) CA2569467A1 (pt)
DE (1) DE602004011911T9 (pt)
ES (1) ES2300713T3 (pt)
PL (1) PL1607519T3 (pt)
PT (1) PT1607519E (pt)
WO (1) WO2005121443A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8268122B2 (en) * 2005-12-02 2012-09-18 Akzo Nobel N.V. Process of producing high-yield pulp
DE102006028018A1 (de) * 2006-06-14 2007-12-20 Henkel Kgaa Aufhell-und/oder Färbemittel mit Estern und/oder Anhydriden
US20230212821A1 (en) * 2020-06-16 2023-07-06 Kemira Oyj Method for pitch control during bleaching

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377038A (en) * 1941-09-15 1945-05-29 Du Pont Manufacture of peracids
US3227655A (en) * 1957-11-25 1966-01-04 Fmc Corp Process for preparation of a bleaching agent
US4294575A (en) * 1979-01-02 1981-10-13 Monsanto Company Peroxide stabilization
FR2457339A1 (fr) * 1979-05-25 1980-12-19 Interox Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques
JPH04108192A (ja) * 1990-04-25 1992-04-09 Hoechst Japan Ltd パルプの漂白法
BR9307520A (pt) * 1992-11-27 1999-08-31 Eka Nobel Ab Processo para o alvejamento de polpa contendo lignocelulose
US5785812A (en) 1992-11-27 1998-07-28 Eka Nobel Ab Process for treating oxygen delignified pulp using an organic peracid or salt, complexing agent and peroxide bleach sequence
GB2304126A (en) * 1995-08-10 1997-03-12 Warwick Int Group Pulp treatment process

Also Published As

Publication number Publication date
US20070246177A1 (en) 2007-10-25
PL1607519T3 (pl) 2008-07-31
WO2005121443A1 (en) 2005-12-22
EP1607519B1 (en) 2008-02-20
ES2300713T3 (es) 2008-06-16
CA2569467A1 (en) 2005-12-22
DE602004011911T2 (de) 2008-08-28
ATE386837T1 (de) 2008-03-15
DE602004011911D1 (de) 2008-04-03
DE602004011911T9 (de) 2009-01-02
EP1607519A1 (en) 2005-12-21

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