FI762174A7 - - Google Patents

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Publication number
FI762174A7
FI762174A7 FI762174A FI762174A FI762174A7 FI 762174 A7 FI762174 A7 FI 762174A7 FI 762174 A FI762174 A FI 762174A FI 762174 A FI762174 A FI 762174A FI 762174 A7 FI762174 A7 FI 762174A7
Authority
FI
Finland
Application number
FI762174A
Other languages
Finnish (fi)
Inventor
Goeran Erik Annergren
Per-Olov Lindblad
Tjell-Aoke 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 FI762174A7 publication Critical patent/FI762174A7/fi

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)
FI762174A 1975-09-09 1976-07-29 FI762174A7 (enrdf_load_stackoverflow)

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
FI762174A7 true FI762174A7 (enrdf_load_stackoverflow) 1977-03-10

Family

ID=20325488

Family Applications (1)

Application Number Title Priority Date Filing Date
FI762174A FI762174A7 (enrdf_load_stackoverflow) 1975-09-09 1976-07-29

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)

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
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
BR7605516A (pt) 1977-08-16
FR2323807A1 (fr) 1977-04-08

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: SCA DEVELOPMENT AKTIEBOLAG