CA2230315A1 - Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur - Google Patents

Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur Download PDF

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Publication number
CA2230315A1
CA2230315A1 CA 2230315 CA2230315A CA2230315A1 CA 2230315 A1 CA2230315 A1 CA 2230315A1 CA 2230315 CA2230315 CA 2230315 CA 2230315 A CA2230315 A CA 2230315A CA 2230315 A1 CA2230315 A1 CA 2230315A1
Authority
CA
Canada
Prior art keywords
pulp
bleaching
refiner
taed
perborate
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
CA 2230315
Other languages
English (en)
Inventor
Celine Leduc
Claude Daneault
Mohini M. Sain
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.)
Individual
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
Priority to CA 2230315 priority Critical patent/CA2230315A1/fr
Publication of CA2230315A1 publication Critical patent/CA2230315A1/fr
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
CA 2230315 1998-02-17 1998-02-17 Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur Abandoned CA2230315A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2230315 CA2230315A1 (fr) 1998-02-17 1998-02-17 Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2230315 CA2230315A1 (fr) 1998-02-17 1998-02-17 Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur

Publications (1)

Publication Number Publication Date
CA2230315A1 true CA2230315A1 (fr) 1999-08-17

Family

ID=29409325

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2230315 Abandoned CA2230315A1 (fr) 1998-02-17 1998-02-17 Methode pour augmenter le degre de blancheur de la pate mecanique dans un raffineur

Country Status (1)

Country Link
CA (1) CA2230315A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100400743C (zh) * 2006-01-13 2008-07-09 东营中盛环保纸业科技有限公司 禾本科植物类快速冷浸机械制浆工艺
CN101182693B (zh) * 2007-12-12 2010-06-02 中冶纸业银河有限公司 一种稳定纸浆白度的方法
US8268122B2 (en) * 2005-12-02 2012-09-18 Akzo Nobel N.V. Process of producing high-yield pulp

Cited By (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
CN100400743C (zh) * 2006-01-13 2008-07-09 东营中盛环保纸业科技有限公司 禾本科植物类快速冷浸机械制浆工艺
CN101182693B (zh) * 2007-12-12 2010-06-02 中冶纸业银河有限公司 一种稳定纸浆白度的方法

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FZDE Dead