FR2360712A1 - Procede de fabrication de pulpe a partir d'un materiau contenant de la ligno-cellulose - Google Patents

Procede de fabrication de pulpe a partir d'un materiau contenant de la ligno-cellulose

Info

Publication number
FR2360712A1
FR2360712A1 FR7709896A FR7709896A FR2360712A1 FR 2360712 A1 FR2360712 A1 FR 2360712A1 FR 7709896 A FR7709896 A FR 7709896A FR 7709896 A FR7709896 A FR 7709896A FR 2360712 A1 FR2360712 A1 FR 2360712A1
Authority
FR
France
Prior art keywords
softening
preheating
pulp
wood
degrees
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Withdrawn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
FR7709896A
Other languages
English (en)
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 FR2360712A1 publication Critical patent/FR2360712A1/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Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

Procédé de fabrication, partir d'un matériau à base de bois, d'une pulpe de raffinage thermo-mécanique modifiée chimiquement, avec un rendement supérieur à 90 % et une teneur élevée en fibres longues, dans laquelle les fibres possèdent une forte aptitude à la liaison et une grande flexibilité, ce procécé consistant en premier lieu à ramollir le matériau à base de bois par traitement à l'aide d'agents chimiques ramollissant la lignine, en combinaison avec un préchauffage à haute température, ce procédé étant caractérisé en ce que matériau est ensuite raffiné, ce raffinage étant exécuté avec une dépense d'énergie qui, en relation avec la capacité de déshydratation de la pulpe fabriquée, se situe entre 500 et 2 500 kWh par tonne de pulpe absolument sèche.
FR7709896A 1976-04-02 1977-04-01 Procede de fabrication de pulpe a partir d'un materiau contenant de la ligno-cellulose Withdrawn FR2360712A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7603949A SE397851B (sv) 1976-04-02 1976-04-02 Sett att fran vedmaterial framstella en kemiskt modifierad termomekanisk raffinormassa

Publications (1)

Publication Number Publication Date
FR2360712A1 true FR2360712A1 (fr) 1978-03-03

Family

ID=20327485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7709896A Withdrawn FR2360712A1 (fr) 1976-04-02 1977-04-01 Procede de fabrication de pulpe a partir d'un materiau contenant de la ligno-cellulose

Country Status (8)

Country Link
JP (1) JPS52124902A (fr)
AU (1) AU2362677A (fr)
BR (1) BR7702080A (fr)
DE (1) DE2714730C3 (fr)
FI (1) FI770974A (fr)
FR (1) FR2360712A1 (fr)
NO (1) NO771171L (fr)
SE (1) SE397851B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE466060C (sv) * 1990-02-13 1995-09-11 Moelnlycke Ab Absorberande kemitermomekanisk massa och framställning därav
US5607546A (en) * 1990-02-13 1997-03-04 Molnlycke Ab CTMP-process
SE9402101L (sv) * 1994-06-15 1995-12-16 Moelnlycke Ab Lättavvattnad, bulkig, kemimekanisk massa med låg spet- och finmaterialhalt
FI113552B (fi) * 1999-12-09 2004-05-14 Upm Kymmene Corp Menetelmä painopaperin valmistamiseksi
FI113670B (fi) 1999-12-09 2004-05-31 Upm Kymmene Corp Menetelmä painopaperin valmistamiseksi

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT330562B (de) * 1972-10-23 1976-07-12 Sca Project Ab Verfahren zur herstellung von mechanisch verfeinertem faserstoff hoher dichte

Also Published As

Publication number Publication date
NO771171L (no) 1977-10-04
BR7702080A (pt) 1978-01-24
FI770974A (fr) 1977-10-03
AU2362677A (en) 1978-09-28
JPS52124902A (en) 1977-10-20
SE7603949L (sv) 1977-10-03
SE397851B (sv) 1977-11-21
DE2714730C3 (de) 1979-02-08
DE2714730B2 (de) 1978-06-08
DE2714730A1 (de) 1977-10-06

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Legal Events

Date Code Title Description
ST Notification of lapse