FR2474550B1 - - Google Patents

Info

Publication number
FR2474550B1
FR2474550B1 FR8101263A FR8101263A FR2474550B1 FR 2474550 B1 FR2474550 B1 FR 2474550B1 FR 8101263 A FR8101263 A FR 8101263A FR 8101263 A FR8101263 A FR 8101263A FR 2474550 B1 FR2474550 B1 FR 2474550B1
Authority
FR
France
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.)
Expired
Application number
FR8101263A
Other languages
French (fr)
Other versions
FR2474550A1 (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.)
Kimberly Clark Tissue Co
Original Assignee
Scott Paper Co
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
Priority claimed from US06/115,065 external-priority patent/US4283251A/en
Application filed by Scott Paper Co filed Critical Scott Paper Co
Publication of FR2474550A1 publication Critical patent/FR2474550A1/fr
Application granted granted Critical
Publication of FR2474550B1 publication Critical patent/FR2474550B1/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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR8101263A 1980-01-24 1981-01-23 Procede de blanchiment de pate cellulosique Granted FR2474550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/115,065 US4283251A (en) 1980-01-24 1980-01-24 Ozone effluent bleaching
AU70975/81A AU539165B2 (en) 1980-01-24 1981-05-25 Ozone effluent bleaching of pulp

Publications (2)

Publication Number Publication Date
FR2474550A1 FR2474550A1 (fr) 1981-07-31
FR2474550B1 true FR2474550B1 (enrdf_load_stackoverflow) 1983-05-27

Family

ID=32962952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8101263A Granted FR2474550A1 (fr) 1980-01-24 1981-01-23 Procede de blanchiment de pate cellulosique

Country Status (2)

Country Link
AU (1) AU539165B2 (enrdf_load_stackoverflow)
FR (1) FR2474550A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
EP0515303B2 (en) * 1991-05-24 2001-07-04 Union Camp Patent Holding, Inc. Method for ozone bleaching

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber

Also Published As

Publication number Publication date
AU7097581A (en) 1982-12-02
AU539165B2 (en) 1984-09-13
FR2474550A1 (fr) 1981-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse