CA1178756A - Blanchiment de pate kraft a l'ozone, precede d'une extraction alcaline - Google Patents

Blanchiment de pate kraft a l'ozone, precede d'une extraction alcaline

Info

Publication number
CA1178756A
CA1178756A CA000398483A CA398483A CA1178756A CA 1178756 A CA1178756 A CA 1178756A CA 000398483 A CA000398483 A CA 000398483A CA 398483 A CA398483 A CA 398483A CA 1178756 A CA1178756 A CA 1178756A
Authority
CA
Canada
Prior art keywords
pulp
slurry
ozone
stage
pulp slurry
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.)
Expired
Application number
CA000398483A
Other languages
English (en)
Inventor
Shyam S. Bhattacharjee
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.)
International Paper Co
Original Assignee
International Paper Co
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 International Paper Co filed Critical International Paper Co
Application granted granted Critical
Publication of CA1178756A publication Critical patent/CA1178756A/fr
Expired 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
CA000398483A 1981-06-29 1982-03-16 Blanchiment de pate kraft a l'ozone, precede d'une extraction alcaline Expired CA1178756A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27881381A 1981-06-29 1981-06-29
US278,813 1981-06-29

Publications (1)

Publication Number Publication Date
CA1178756A true CA1178756A (fr) 1984-12-04

Family

ID=23066478

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000398483A Expired CA1178756A (fr) 1981-06-29 1982-03-16 Blanchiment de pate kraft a l'ozone, precede d'une extraction alcaline

Country Status (1)

Country Link
CA (1) CA1178756A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475930A1 (fr) * 1990-08-28 1992-03-18 Kamyr, Inc. Séparation et/ou mélange par centrifugation avec une aspersion gazeuse
EP0520140A1 (fr) * 1991-06-28 1992-12-30 Kamyr, Inc. Blanchiment par ozone-extraction alcaline sans lavage intermédiaire
FR2684697A1 (fr) * 1991-12-09 1993-06-11 Toulouse Inst Nat Polytech Procede de fabrication de pate a papier blanchie.
FR2695947A1 (fr) * 1992-09-18 1994-03-25 Saint Gobain Papier Bois Gie C Procédé de blanchiment de pâtes cellulosiques chimiques.
US6174409B1 (en) 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
CN115417931A (zh) * 2022-09-22 2022-12-02 上海同化益生纤生物科技有限公司 一种耐温型纤维素的制备方法与应用

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475930A1 (fr) * 1990-08-28 1992-03-18 Kamyr, Inc. Séparation et/ou mélange par centrifugation avec une aspersion gazeuse
US5405497A (en) * 1990-08-28 1995-04-11 Kamyr, Inc. Method of chemically reacting a liquid with a gas in a vortex
EP0520140A1 (fr) * 1991-06-28 1992-12-30 Kamyr, Inc. Blanchiment par ozone-extraction alcaline sans lavage intermédiaire
FR2684697A1 (fr) * 1991-12-09 1993-06-11 Toulouse Inst Nat Polytech Procede de fabrication de pate a papier blanchie.
FR2695947A1 (fr) * 1992-09-18 1994-03-25 Saint Gobain Papier Bois Gie C Procédé de blanchiment de pâtes cellulosiques chimiques.
US6174409B1 (en) 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
CN115417931A (zh) * 2022-09-22 2022-12-02 上海同化益生纤生物科技有限公司 一种耐温型纤维素的制备方法与应用
CN115417931B (zh) * 2022-09-22 2024-03-22 上海同化益生纤生物科技有限公司 一种耐温型纤维素的制备方法与应用

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry