FR2507639B1 - - Google Patents

Info

Publication number
FR2507639B1
FR2507639B1 FR8210005A FR8210005A FR2507639B1 FR 2507639 B1 FR2507639 B1 FR 2507639B1 FR 8210005 A FR8210005 A FR 8210005A FR 8210005 A FR8210005 A FR 8210005A FR 2507639 B1 FR2507639 B1 FR 2507639B1
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
FR8210005A
Other languages
French (fr)
Other versions
FR2507639A1 (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.)
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 FR2507639A1 (fr) 1982-12-17
FR2507639B1 true FR2507639B1 (de) 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 (de)
FI (1) FI67241B (de)
FR (1) FR2507639A1 (de)
MX (1) MX156288A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3044577B1 (fr) 2015-12-07 2017-12-22 Timothee Boitouzet Procede de delignification partielle et de remplissage d'un materiau ligno-cellulosique, et structure de materiau composite obtenue par ce procede
FR3067275B1 (fr) 2017-06-07 2022-08-12 Timothee Boitouzet Procede de delignification partielle par voie supercritique ou subcritique et de remplissage d'un materiau ligno-cellulosique
FR3077895B1 (fr) 2018-02-09 2020-02-28 Sas Woodoo Dispositif de detection tactile avec interface tactile en materiau composite

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA897361A (en) * 1969-12-19 1972-04-11 E. Mallett Samuel Oxygen bleaching process
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre

Also Published As

Publication number Publication date
BR8203307A (pt) 1983-05-24
FI67241B (fi) 1984-10-31
FR2507639A1 (fr) 1982-12-17
MX156288A (es) 1988-08-08
FI811800A0 (fi) 1981-06-10

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Legal Events

Date Code Title Description
ST Notification of lapse