FR2599398B1 - Procede de preblanchiment de pates chimiques de cellulose - Google Patents

Procede de preblanchiment de pates chimiques de cellulose

Info

Publication number
FR2599398B1
FR2599398B1 FR8707401A FR8707401A FR2599398B1 FR 2599398 B1 FR2599398 B1 FR 2599398B1 FR 8707401 A FR8707401 A FR 8707401A FR 8707401 A FR8707401 A FR 8707401A FR 2599398 B1 FR2599398 B1 FR 2599398B1
Authority
FR
France
Prior art keywords
preblanching
cellulose pulp
chemical cellulose
chemical
pulp
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
FR8707401A
Other languages
English (en)
French (fr)
Other versions
FR2599398A1 (fr
Inventor
Kurt Ekman
Raimo Junnila
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.)
Neste Oyj
Original Assignee
Neste Oyj
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 Neste Oyj filed Critical Neste Oyj
Publication of FR2599398A1 publication Critical patent/FR2599398A1/fr
Application granted granted Critical
Publication of FR2599398B1 publication Critical patent/FR2599398B1/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
    • 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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR8707401A 1986-05-28 1987-05-26 Procede de preblanchiment de pates chimiques de cellulose Expired FR2599398B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI862262A FI75196C (fi) 1986-05-28 1986-05-28 Foerfarande foer foerblekning av kemiska cellulosamassor.

Publications (2)

Publication Number Publication Date
FR2599398A1 FR2599398A1 (fr) 1987-12-04
FR2599398B1 true FR2599398B1 (fr) 1989-01-13

Family

ID=8522706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8707401A Expired FR2599398B1 (fr) 1986-05-28 1987-05-26 Procede de preblanchiment de pates chimiques de cellulose

Country Status (6)

Country Link
AT (1) AT395027B (enExample)
DE (1) DE3790278T1 (enExample)
FI (1) FI75196C (enExample)
FR (1) FR2599398B1 (enExample)
SE (1) SE8800152D0 (enExample)
WO (1) WO1987007314A1 (enExample)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE412235C (de) * 1924-02-27 1925-04-17 Armin Hillmer Verfahren zum Herausloesen des Lignins aus ligninhaltigen Zellulosefasern, Holz usw.mit Phenolen
US1705424A (en) * 1924-09-30 1929-03-12 Strecker Otto Carl Process for the production of cellulose by decomposition of vegetable fibers
DE2229673A1 (de) * 1972-06-19 1974-01-17 Schweers Verfahren zur herstellung von phenolzellstoff
DE3161585D1 (en) * 1980-06-20 1984-01-12 Battelle Memorial Institute A method for the delignification of wood and other ligno-cellulosic products
US4295928A (en) * 1980-08-07 1981-10-20 Nalco Chemical Company Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching

Also Published As

Publication number Publication date
FI75196B (fi) 1988-01-29
ATA901387A (de) 1992-01-15
DE3790278T1 (enExample) 1988-06-01
FI75196C (fi) 1988-05-09
FI862262A0 (fi) 1986-05-28
AT395027B (de) 1992-08-25
SE8800152L (sv) 1988-01-19
SE8800152D0 (sv) 1988-01-19
FR2599398A1 (fr) 1987-12-04
WO1987007314A1 (en) 1987-12-03
FI862262L (fi) 1987-11-29

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Legal Events

Date Code Title Description
ST Notification of lapse