NO763074L - - Google Patents

Info

Publication number
NO763074L
NO763074L NO763074A NO763074A NO763074L NO 763074 L NO763074 L NO 763074L NO 763074 A NO763074 A NO 763074A NO 763074 A NO763074 A NO 763074A NO 763074 L NO763074 L NO 763074L
Authority
NO
Norway
Prior art keywords
calcium chloride
pulp
refiner
treatment
stated
Prior art date
Application number
NO763074A
Other languages
English (en)
Norwegian (no)
Inventor
G E Annergren
P-O Lindblad
T-A Haegglund
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 NO763074L publication Critical patent/NO763074L/no

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)
NO763074A 1975-09-09 1976-09-08 NO763074L (ref)

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
NO763074L true NO763074L (ref) 1977-03-10

Family

ID=20325488

Family Applications (1)

Application Number Title Priority Date Filing Date
NO763074A NO763074L (ref) 1975-09-09 1976-09-08

Country Status (7)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557605B1 (fr) * 1983-12-29 1987-12-11 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

Also Published As

Publication number Publication date
DE2640664A1 (de) 1977-03-10
BR7605516A (pt) 1977-08-16
FI762174A7 (ref) 1977-03-10
FR2323807A1 (fr) 1977-04-08
JPS5234003A (en) 1977-03-15
SE7510015L (sv) 1977-03-10
AU1584076A (en) 1978-09-14
DE2640664B2 (de) 1978-01-26

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