CA2189724A1 - Method of pulping - Google Patents

Method of pulping

Info

Publication number
CA2189724A1
CA2189724A1 CA002189724A CA2189724A CA2189724A1 CA 2189724 A1 CA2189724 A1 CA 2189724A1 CA 002189724 A CA002189724 A CA 002189724A CA 2189724 A CA2189724 A CA 2189724A CA 2189724 A1 CA2189724 A1 CA 2189724A1
Authority
CA
Canada
Prior art keywords
pulp
bleaching
peroxide
stage
ecf
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
CA002189724A
Other languages
English (en)
French (fr)
Inventor
Suezone Chow
Romuald S. Krzywanski
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.)
Canadian Forest Products Ltd
Original Assignee
Canadian Forest Products 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 Canadian Forest Products Ltd filed Critical Canadian Forest Products Ltd
Publication of CA2189724A1 publication Critical patent/CA2189724A1/en
Abandoned legal-status Critical Current

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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002189724A 1996-07-08 1996-11-06 Method of pulping Abandoned CA2189724A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67670496A 1996-07-08 1996-07-08
US08/676,704 1996-07-08

Publications (1)

Publication Number Publication Date
CA2189724A1 true CA2189724A1 (en) 1998-01-09

Family

ID=24715635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002189724A Abandoned CA2189724A1 (en) 1996-07-08 1996-11-06 Method of pulping

Country Status (5)

Country Link
JP (1) JPH10121393A (de)
CA (1) CA2189724A1 (de)
DE (1) DE19729155A1 (de)
FI (1) FI972881A (de)
SE (1) SE9702583L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016000056A1 (pt) * 2014-07-04 2016-01-07 Universidade Estadual Paulista "Júlio De Mesquita Filho" - Unesp Processo de branqueamento de celulose e de produção de derivados de celulose

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7351764B2 (en) * 2004-03-31 2008-04-01 Nalco Company Methods to enhance brightness of pulp and optimize use of bleaching chemicals
US20070131364A1 (en) * 2005-12-14 2007-06-14 University Of Maine Process for treating a cellulose-lignin pulp
JP4942415B2 (ja) * 2006-07-28 2012-05-30 ハイモ株式会社 抄紙方法
GB0721587D0 (en) * 2007-11-02 2007-12-12 Innospec Ltd Process for bleaching pulp
FR3062138B1 (fr) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016000056A1 (pt) * 2014-07-04 2016-01-07 Universidade Estadual Paulista "Júlio De Mesquita Filho" - Unesp Processo de branqueamento de celulose e de produção de derivados de celulose

Also Published As

Publication number Publication date
JPH10121393A (ja) 1998-05-12
DE19729155A1 (de) 1998-01-15
SE9702583L (sv) 1998-01-09
FI972881A (fi) 1998-01-09
FI972881A0 (fi) 1997-07-07
SE9702583D0 (sv) 1997-07-04

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead