CA2569467A1 - Activator for pulp bleaching - Google Patents

Activator for pulp bleaching Download PDF

Info

Publication number
CA2569467A1
CA2569467A1 CA002569467A CA2569467A CA2569467A1 CA 2569467 A1 CA2569467 A1 CA 2569467A1 CA 002569467 A CA002569467 A CA 002569467A CA 2569467 A CA2569467 A CA 2569467A CA 2569467 A1 CA2569467 A1 CA 2569467A1
Authority
CA
Canada
Prior art keywords
anhydride
carboxylic acid
process according
range
acid anhydride
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.)
Abandoned
Application number
CA002569467A
Other languages
English (en)
French (fr)
Inventor
Alan Michael Marland
Alison Jane Mathews
Gary Miller
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.)
Warwick International Group Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2569467A1 publication Critical patent/CA2569467A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/16Bleaching ; Apparatus therefor with per compounds
    • D21C9/166Bleaching ; 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)
CA002569467A 2004-06-14 2005-06-10 Activator for pulp bleaching Abandoned CA2569467A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04253546.8 2004-06-14
EP04253546A EP1607519B1 (en) 2004-06-14 2004-06-14 Activator for pulp bleaching
PCT/GB2005/002312 WO2005121443A1 (en) 2004-06-14 2005-06-10 Activator for pulp bleaching

Publications (1)

Publication Number Publication Date
CA2569467A1 true CA2569467A1 (en) 2005-12-22

Family

ID=34930404

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002569467A Abandoned CA2569467A1 (en) 2004-06-14 2005-06-10 Activator for pulp bleaching

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
WO2021255335A1 (en) * 2020-06-16 2021-12-23 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
JPH08503749A (ja) * 1992-11-27 1996-04-23 エカ ノーベル アクチェボラーグ リグノセルロース含有パルプの漂白方法
ATE146833T1 (de) 1992-11-27 1997-01-15 Eka Chemicals Ab Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff
GB2304126A (en) * 1995-08-10 1997-03-12 Warwick Int Group Pulp treatment process

Also Published As

Publication number Publication date
PL1607519T3 (pl) 2008-07-31
PT1607519E (pt) 2008-04-16
ES2300713T3 (es) 2008-06-16
DE602004011911T2 (de) 2008-08-28
ATE386837T1 (de) 2008-03-15
EP1607519B1 (en) 2008-02-20
WO2005121443A1 (en) 2005-12-22
DE602004011911T9 (de) 2009-01-02
DE602004011911D1 (de) 2008-04-03
EP1607519A1 (en) 2005-12-21
US20070246177A1 (en) 2007-10-25

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued

Effective date: 20130611