AU550433B2 - Bleaching cellulose pulp - Google Patents

Bleaching cellulose pulp

Info

Publication number
AU550433B2
AU550433B2 AU81151/82A AU8115182A AU550433B2 AU 550433 B2 AU550433 B2 AU 550433B2 AU 81151/82 A AU81151/82 A AU 81151/82A AU 8115182 A AU8115182 A AU 8115182A AU 550433 B2 AU550433 B2 AU 550433B2
Authority
AU
Australia
Prior art keywords
cellulose pulp
bleaching cellulose
bleaching
pulp
cellulose
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.)
Ceased
Application number
AU81151/82A
Other versions
AU8115182A (en
Inventor
Hans Olof Samuelson
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Publication of AU8115182A publication Critical patent/AU8115182A/en
Application granted granted Critical
Publication of AU550433B2 publication Critical patent/AU550433B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU81151/82A 1981-03-23 1982-03-05 Bleaching cellulose pulp Ceased AU550433B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8101815A SE425674B (en) 1981-03-23 1981-03-23 PROCEDURE FOR DELIGNIFICATION OF CELLULOSAMASSA WITH NITROGEN Dioxide AND Oxygen
SE81018152 1981-03-23

Publications (2)

Publication Number Publication Date
AU8115182A AU8115182A (en) 1982-09-30
AU550433B2 true AU550433B2 (en) 1986-03-20

Family

ID=20343394

Family Applications (1)

Application Number Title Priority Date Filing Date
AU81151/82A Ceased AU550433B2 (en) 1981-03-23 1982-03-05 Bleaching cellulose pulp

Country Status (6)

Country Link
JP (1) JPS57161185A (en)
AU (1) AU550433B2 (en)
CA (1) CA1180510A (en)
FR (1) FR2502203A1 (en)
NZ (1) NZ199697A (en)
SE (1) SE425674B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification

Also Published As

Publication number Publication date
CA1180510A (en) 1985-01-08
SE425674B (en) 1982-10-25
SE8101815L (en) 1982-09-24
AU8115182A (en) 1982-09-30
FR2502203B1 (en) 1984-11-23
JPS6360158B2 (en) 1988-11-22
JPS57161185A (en) 1982-10-04
NZ199697A (en) 1986-01-24
FR2502203A1 (en) 1982-09-24

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