NO984593L - Method of Bleaching Chemical Pulp - Google Patents

Method of Bleaching Chemical Pulp

Info

Publication number
NO984593L
NO984593L NO984593A NO984593A NO984593L NO 984593 L NO984593 L NO 984593L NO 984593 A NO984593 A NO 984593A NO 984593 A NO984593 A NO 984593A NO 984593 L NO984593 L NO 984593L
Authority
NO
Norway
Prior art keywords
chemical pulp
bleaching chemical
bleaching
pulp
boiling
Prior art date
Application number
NO984593A
Other languages
Norwegian (no)
Other versions
NO984593D0 (en
Inventor
Laurence Briois
Hervu Suty
Original Assignee
Atochem Elf Sa
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 Atochem Elf Sa filed Critical Atochem Elf Sa
Publication of NO984593D0 publication Critical patent/NO984593D0/en
Publication of NO984593L publication Critical patent/NO984593L/en

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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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)

Abstract

En fremgangsmåte for bleking av kjemiske papirmasser der massene efter koking og eventuelt forbleking underkastes minst en behandling med klordioksyd i nærvær av oksygen.A process for bleaching chemical pulp, where the pulp after boiling and possibly bleaching is subjected to at least one treatment with chlorine dioxide in the presence of oxygen.

NO984593A 1997-10-03 1998-10-01 Method of Bleaching Chemical Pulp NO984593L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9712367A FR2769327B1 (en) 1997-10-03 1997-10-03 PROCESS FOR BLEACHING CHEMICAL PAPER PULP

Publications (2)

Publication Number Publication Date
NO984593D0 NO984593D0 (en) 1998-10-01
NO984593L true NO984593L (en) 1999-04-06

Family

ID=9511814

Family Applications (1)

Application Number Title Priority Date Filing Date
NO984593A NO984593L (en) 1997-10-03 1998-10-01 Method of Bleaching Chemical Pulp

Country Status (12)

Country Link
EP (1) EP0906987A1 (en)
JP (1) JPH11152693A (en)
KR (1) KR19990036671A (en)
CN (1) CN1213722A (en)
AU (1) AU8787798A (en)
BR (1) BR9803865A (en)
CA (1) CA2246569A1 (en)
FR (1) FR2769327B1 (en)
ID (1) ID21153A (en)
MA (1) MA24659A1 (en)
NO (1) NO984593L (en)
ZA (1) ZA988300B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101105011B (en) * 2004-01-17 2010-05-12 梅秀泉 Oxygen delignification and bleaching integration paste preparing method and device for realizing the same method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706673A (en) * 1951-10-19 1955-04-19 Elmer R Burling Method of bleaching with chlorine dioxide
DK0651832T3 (en) * 1991-08-23 1998-05-11 Olin Corp Method for gas phase delignification of wood fiber pulp
WO1996015317A1 (en) * 1994-11-10 1996-05-23 Olin Corporation Process for gas phase chlorine dioxide delignification

Also Published As

Publication number Publication date
FR2769327B1 (en) 1999-11-05
EP0906987A1 (en) 1999-04-07
ZA988300B (en) 1999-03-11
CN1213722A (en) 1999-04-14
MA24659A1 (en) 1999-04-01
JPH11152693A (en) 1999-06-08
BR9803865A (en) 1999-12-07
FR2769327A1 (en) 1999-04-09
ID21153A (en) 1999-04-29
KR19990036671A (en) 1999-05-25
AU8787798A (en) 1999-04-22
CA2246569A1 (en) 1999-04-03
NO984593D0 (en) 1998-10-01

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application