FR2323807A1 - Procede pour le traitement de matiere lignocellulosique - Google Patents

Procede pour le traitement de matiere lignocellulosique

Info

Publication number
FR2323807A1
FR2323807A1 FR7626105A FR7626105A FR2323807A1 FR 2323807 A1 FR2323807 A1 FR 2323807A1 FR 7626105 A FR7626105 A FR 7626105A FR 7626105 A FR7626105 A FR 7626105A FR 2323807 A1 FR2323807 A1 FR 2323807A1
Authority
FR
France
Prior art keywords
cacl2
esp
pulp
pulp suspension
refiner
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Withdrawn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
FR7626105A
Other languages
English (en)
French (fr)
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 FR2323807A1 publication Critical patent/FR2323807A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
FR7626105A 1975-09-09 1976-08-30 Procede pour le traitement de matiere lignocellulosique Withdrawn FR2323807A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7510015A SE7510015L (sv) 1975-09-09 1975-09-09 Sett att behandla lignocellulosahaltigt material

Publications (1)

Publication Number Publication Date
FR2323807A1 true FR2323807A1 (fr) 1977-04-08

Family

ID=20325488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626105A Withdrawn FR2323807A1 (fr) 1975-09-09 1976-08-30 Procede pour le traitement de matiere lignocellulosique

Country Status (7)

Country Link
JP (1) JPS5234003A (enrdf_load_stackoverflow)
BR (1) BR7605516A (enrdf_load_stackoverflow)
DE (1) DE2640664B2 (enrdf_load_stackoverflow)
FI (1) FI762174A7 (enrdf_load_stackoverflow)
FR (1) FR2323807A1 (enrdf_load_stackoverflow)
NO (1) NO763074L (enrdf_load_stackoverflow)
SE (1) SE7510015L (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557605A1 (fr) * 1983-12-29 1985-07-05 Atochem Procede de blanchiment de pates papetieres par le peroxyde d'hydrogene

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507744A (en) * 1966-04-01 1970-04-21 Kimberly Clark Co Wood pulp bleaching process utilizing peroxide pyrophosphate high concentration compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557605A1 (fr) * 1983-12-29 1985-07-05 Atochem Procede de blanchiment de pates papetieres par le peroxyde d'hydrogene
EP0148712A1 (fr) * 1983-12-29 1985-07-17 Elf Atochem S.A. Procédé de blanchiment de pâtes papetières par le peroxyde d'hydrogène

Also Published As

Publication number Publication date
DE2640664B2 (de) 1978-01-26
SE7510015L (sv) 1977-03-10
NO763074L (enrdf_load_stackoverflow) 1977-03-10
DE2640664A1 (de) 1977-03-10
AU1584076A (en) 1978-09-14
JPS5234003A (en) 1977-03-15
FI762174A7 (enrdf_load_stackoverflow) 1977-03-10
BR7605516A (pt) 1977-08-16

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Legal Events

Date Code Title Description
ST Notification of lapse