FR2621934A1 - Procede de blanchissement de pate de cellulose - Google Patents

Procede de blanchissement de pate de cellulose Download PDF

Info

Publication number
FR2621934A1
FR2621934A1 FR8813166A FR8813166A FR2621934A1 FR 2621934 A1 FR2621934 A1 FR 2621934A1 FR 8813166 A FR8813166 A FR 8813166A FR 8813166 A FR8813166 A FR 8813166A FR 2621934 A1 FR2621934 A1 FR 2621934A1
Authority
FR
France
Prior art keywords
chlorine
pulp
special
dough
bleaching
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.)
Withdrawn
Application number
FR8813166A
Other languages
English (en)
French (fr)
Inventor
Per-Olov Lindblad
Gunhild Maria Lundin
Bo Harald Andreasson
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.)
SCA Development AB
Original Assignee
SCA Development 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 SCA Development AB filed Critical SCA Development AB
Publication of FR2621934A1 publication Critical patent/FR2621934A1/fr
Withdrawn legal-status Critical Current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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
FR8813166A 1987-10-16 1988-10-07 Procede de blanchissement de pate de cellulose Withdrawn FR2621934A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704041A SE8704041L (sv) 1987-10-16 1987-10-16 Saett vid blekning av cellulosamassa

Publications (1)

Publication Number Publication Date
FR2621934A1 true FR2621934A1 (fr) 1989-04-21

Family

ID=20369912

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8813166A Withdrawn FR2621934A1 (fr) 1987-10-16 1988-10-07 Procede de blanchissement de pate de cellulose

Country Status (4)

Country Link
AU (1) AU2480488A (sv)
FR (1) FR2621934A1 (sv)
SE (1) SE8704041L (sv)
WO (1) WO1989003451A1 (sv)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798119A (en) * 1972-04-24 1974-03-19 Scott Paper Co Process for bleaching kraft pulp with oxygen in the presence of white liquor from a kraft recovery system
US4675076A (en) * 1986-10-01 1987-06-23 Ppg Industries, Inc. Method for brightening pulp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074111A (en) * 1964-04-02 1967-06-28 Electric Reduction Co Processes useful in the manufacture of bleached pulp
FI43947C (fi) * 1965-01-25 1971-07-12 Electric Reduction Co Valkaistun selluloosan valmistusmenetelmä
US3716448A (en) * 1970-05-25 1973-02-13 Int Paper Co Single stage delignification and bleaching of chemical pulp with oxygen in the presence of a protector
SE452483B (sv) * 1985-02-01 1987-11-30 Aga Ab Forfarande for delignifiering av sulfatmassa

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798119A (en) * 1972-04-24 1974-03-19 Scott Paper Co Process for bleaching kraft pulp with oxygen in the presence of white liquor from a kraft recovery system
US4675076A (en) * 1986-10-01 1987-06-23 Ppg Industries, Inc. Method for brightening pulp

Also Published As

Publication number Publication date
WO1989003451A1 (en) 1989-04-20
SE8704041L (sv) 1989-04-17
SE8704041D0 (sv) 1987-10-16
AU2480488A (en) 1989-05-02

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Legal Events

Date Code Title Description
ST Notification of lapse