Nothing Special   »   [go: up one dir, main page]

FR2507639A1 - Procede de blanchiment de matieres contenant de la cellulose - Google Patents

Procede de blanchiment de matieres contenant de la cellulose Download PDF

Info

Publication number
FR2507639A1
FR2507639A1 FR8210005A FR8210005A FR2507639A1 FR 2507639 A1 FR2507639 A1 FR 2507639A1 FR 8210005 A FR8210005 A FR 8210005A FR 8210005 A FR8210005 A FR 8210005A FR 2507639 A1 FR2507639 A1 FR 2507639A1
Authority
FR
France
Prior art keywords
treatment
alkali
oxygen
pulp
bleaching
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
FR8210005A
Other languages
English (en)
French (fr)
Other versions
FR2507639B1 (es
Inventor
Raimo Malinen
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.)
AGA AB
Original Assignee
AGA 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 AGA AB filed Critical AGA AB
Publication of FR2507639A1 publication Critical patent/FR2507639A1/fr
Application granted granted Critical
Publication of FR2507639B1 publication Critical patent/FR2507639B1/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
    • 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
    • D21C9/1026—Other features in bleaching processes
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR8210005A 1981-06-10 1982-06-09 Procede de blanchiment de matieres contenant de la cellulose Granted FR2507639A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI811800A FI67241B (fi) 1981-06-10 1981-06-10 Saett foer blekning av cellulosahaltiga material

Publications (2)

Publication Number Publication Date
FR2507639A1 true FR2507639A1 (fr) 1982-12-17
FR2507639B1 FR2507639B1 (es) 1985-04-12

Family

ID=8514486

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8210005A Granted FR2507639A1 (fr) 1981-06-10 1982-06-09 Procede de blanchiment de matieres contenant de la cellulose

Country Status (4)

Country Link
BR (1) BR8203307A (es)
FI (1) FI67241B (es)
FR (1) FR2507639A1 (es)
MX (1) MX156288A (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10538012B2 (en) 2015-12-07 2020-01-21 Timothee Boitouzet Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process
US11656756B2 (en) 2018-02-09 2023-05-23 Sas Woodoo Touch detection device with touch interface made of composite material
US11820041B2 (en) 2017-06-07 2023-11-21 Sas Woodoo Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071947A1 (es) * 1969-12-19 1971-09-24 Canadian Ind
FR2220620A1 (es) * 1973-03-07 1974-10-04 Int Paper Co
FR2456159A1 (fr) * 1979-05-11 1980-12-05 Sca Development Ab Procede pour le blanchiement au moyen d'oxygene de matieres contenant de la ligno-cellulose

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071947A1 (es) * 1969-12-19 1971-09-24 Canadian Ind
FR2220620A1 (es) * 1973-03-07 1974-10-04 Int Paper Co
FR2456159A1 (fr) * 1979-05-11 1980-12-05 Sca Development Ab Procede pour le blanchiement au moyen d'oxygene de matieres contenant de la ligno-cellulose

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAPPI, J. TECHN. ASS. PULP PAPER IND., vol. 58, no. 4, avril 1975, Atlanta, GA (US) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10538012B2 (en) 2015-12-07 2020-01-21 Timothee Boitouzet Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process
US11254026B2 (en) 2015-12-07 2022-02-22 Timothée BOITOUZET Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process
US11820041B2 (en) 2017-06-07 2023-11-21 Sas Woodoo Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material
US11656756B2 (en) 2018-02-09 2023-05-23 Sas Woodoo Touch detection device with touch interface made of composite material
US11662899B2 (en) 2018-02-09 2023-05-30 Sas Woodoo Touch detection device with touch interface made of composite material

Also Published As

Publication number Publication date
FI811800A0 (fi) 1981-06-10
FR2507639B1 (es) 1985-04-12
MX156288A (es) 1988-08-08
FI67241B (fi) 1984-10-31
BR8203307A (pt) 1983-05-24

Similar Documents

Publication Publication Date Title
EP0019963B1 (fr) Procédé pour la délignification et le blanchiment de pâtes cellulosiques chimiques et semi-chimiques
EP0018287B1 (fr) Procédé de délignification de pâte à papier chimique écrue
FR2467261A1 (fr) Blanchiment de matiere lignocellulosique au moyen d'agents de blanchiment contenant du peroxyde
EP1322814B1 (fr) Procede de blanchiment de pates a papier
FR2483972A1 (fr) Procede de blanchissement au gaz oxygene de pate de cellulose
EP2761081B1 (fr) Pretraitement enzymatique de bois dans un procede de fabrication de pate a papier mecanique
FR2520397A1 (fr) Procede pour le traitement de pates papetieres chimiques
EP0925401B1 (fr) Procede de blanchiment de pate a papier
FR2482146A1 (fr) Procede de blanchiment a l'oxygene de la pate cellulosique preparee par voie chimique
FR2507639A1 (fr) Procede de blanchiment de matieres contenant de la cellulose
EP0509905A1 (fr) Procédé de préparation de pâte à papier à haut rendement et blanchie
BE1004674A3 (fr) Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
FR2557605A1 (fr) Procede de blanchiment de pates papetieres par le peroxyde d'hydrogene
FR2910027A1 (fr) Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature
EP3008240B1 (fr) Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
FR2743579A1 (fr) Procede de fabrication de pate a papier a partir de plantes lignocellulosiques et pate a papier obtenue
FR2681883A1 (fr) Procede de traitement d'une cendre provenant de la fabrication de pate de cellulose.
FR2553444A1 (fr) Traitement a l'hypochlorite de pates papetieres chimiques
EP0213376B1 (fr) Procédé pour la délignification de matières cellulosiques
FR2465026A1 (fr) Procede pour reduire la teneur en resine pendant la preparation de pates de cellulose provenant de matieres lignocellulosiques et appareil pour sa mise en oeuvre
EP0180529B2 (fr) Procédé pour la préparation des pâtes papetières chimiques en vue du blanchiment
CA1128260A (fr) Procede de fabrication de pates papetieres chimiques
WO2003080925A2 (fr) Utilisation d'un complexe phenantroline-cuivre lors de la fabrication de pate a papier
EP0212329B1 (fr) Procédé pour la délignification de matières cellulosiques
BE656601A (es)

Legal Events

Date Code Title Description
ST Notification of lapse