FR2423581A1 - Procede pour la fabrication de cellulose blanchie - Google Patents

Procede pour la fabrication de cellulose blanchie

Info

Publication number
FR2423581A1
FR2423581A1 FR7811822A FR7811822A FR2423581A1 FR 2423581 A1 FR2423581 A1 FR 2423581A1 FR 7811822 A FR7811822 A FR 7811822A FR 7811822 A FR7811822 A FR 7811822A FR 2423581 A1 FR2423581 A1 FR 2423581A1
Authority
FR
France
Prior art keywords
cellulose
bleaching
moving
single vessel
stage
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
FR7811822A
Other languages
English (en)
Other versions
FR2423581B3 (fr
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.)
BOURIT JEAN PIERRE
Original Assignee
BOURIT JEAN PIERRE
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 BOURIT JEAN PIERRE filed Critical BOURIT JEAN PIERRE
Priority to FR7811822A priority Critical patent/FR2423581A1/fr
Publication of FR2423581A1 publication Critical patent/FR2423581A1/fr
Application granted granted Critical
Publication of FR2423581B3 publication Critical patent/FR2423581B3/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Le procédé consiste à utiliser une seule enceinte pour effectuer les diverses réactions de lavage, de blanchiment et d'essorage des fibres cellulosiques. L'appareil utilisé comprend une surface filtrante pour séparer les fibres cellulosiques des liquides de réaction séparation se fait soit par différence de pression hydrostatique, soit par centrifugation. Le procédé peut être utilisé aux différentes phases de fabrication de la cellulose, depuis la cuisson jusqu'au séchage, non compris.
FR7811822A 1978-04-21 1978-04-21 Procede pour la fabrication de cellulose blanchie Granted FR2423581A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7811822A FR2423581A1 (fr) 1978-04-21 1978-04-21 Procede pour la fabrication de cellulose blanchie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7811822A FR2423581A1 (fr) 1978-04-21 1978-04-21 Procede pour la fabrication de cellulose blanchie

Publications (2)

Publication Number Publication Date
FR2423581A1 true FR2423581A1 (fr) 1979-11-16
FR2423581B3 FR2423581B3 (fr) 1980-10-31

Family

ID=9207430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811822A Granted FR2423581A1 (fr) 1978-04-21 1978-04-21 Procede pour la fabrication de cellulose blanchie

Country Status (1)

Country Link
FR (1) FR2423581A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541330A1 (fr) * 1983-02-17 1984-08-24 Larox Ag Procede pour le traitement de la cellulose issue d'un procede de lessivage de cellulose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541330A1 (fr) * 1983-02-17 1984-08-24 Larox Ag Procede pour le traitement de la cellulose issue d'un procede de lessivage de cellulose

Also Published As

Publication number Publication date
FR2423581B3 (fr) 1980-10-31

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Legal Events

Date Code Title Description
ST Notification of lapse