FR2276420A1 - Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin - Google Patents

Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin

Info

Publication number
FR2276420A1
FR2276420A1 FR7421933A FR7421933A FR2276420A1 FR 2276420 A1 FR2276420 A1 FR 2276420A1 FR 7421933 A FR7421933 A FR 7421933A FR 7421933 A FR7421933 A FR 7421933A FR 2276420 A1 FR2276420 A1 FR 2276420A1
Authority
FR
France
Prior art keywords
caustic soda
mechanical treatment
papermaking
impregnation
wood chips
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.)
Granted
Application number
FR7421933A
Other languages
English (en)
French (fr)
Other versions
FR2276420B1 (enrdf_load_stackoverflow
Inventor
Pierre Monzie
Christian De Choudens
Robert Angelier
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.)
CENTRE TECH IND PAPIER
Original Assignee
CENTRE TECH IND PAPIER
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 CENTRE TECH IND PAPIER filed Critical CENTRE TECH IND PAPIER
Priority to FR7421933A priority Critical patent/FR2276420A1/fr
Publication of FR2276420A1 publication Critical patent/FR2276420A1/fr
Application granted granted Critical
Publication of FR2276420B1 publication Critical patent/FR2276420B1/fr
Granted 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen

Landscapes

  • Dry Formation Of Fiberboard And The Like (AREA)
FR7421933A 1974-06-24 1974-06-24 Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin Granted FR2276420A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7421933A FR2276420A1 (fr) 1974-06-24 1974-06-24 Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421933A FR2276420A1 (fr) 1974-06-24 1974-06-24 Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin

Publications (2)

Publication Number Publication Date
FR2276420A1 true FR2276420A1 (fr) 1976-01-23
FR2276420B1 FR2276420B1 (enrdf_load_stackoverflow) 1976-12-24

Family

ID=9140443

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421933A Granted FR2276420A1 (fr) 1974-06-24 1974-06-24 Procede pour la fabrication de pates chimiques, par delignification de copeaux de matieres ligno-cellulosiques par l'oxygene en milieu alcalin

Country Status (1)

Country Link
FR (1) FR2276420A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353673A1 (fr) * 1976-06-01 1977-12-30 Toyo Pulp Co Ltd Cuisson alcaline et delignification des matieres cellulosiques
WO1997028305A1 (en) * 1996-01-31 1997-08-07 Sunds Defibrator Woodhandling Oy Process and apparatus for treatment of fibrous raw material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353673A1 (fr) * 1976-06-01 1977-12-30 Toyo Pulp Co Ltd Cuisson alcaline et delignification des matieres cellulosiques
WO1997028305A1 (en) * 1996-01-31 1997-08-07 Sunds Defibrator Woodhandling Oy Process and apparatus for treatment of fibrous raw material

Also Published As

Publication number Publication date
FR2276420B1 (enrdf_load_stackoverflow) 1976-12-24

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