BR8203307A - Processo para alvejamento e deslignificacao de materiais que contem celulose - Google Patents

Processo para alvejamento e deslignificacao de materiais que contem celulose

Info

Publication number
BR8203307A
BR8203307A BR8203307A BR8203307A BR8203307A BR 8203307 A BR8203307 A BR 8203307A BR 8203307 A BR8203307 A BR 8203307A BR 8203307 A BR8203307 A BR 8203307A BR 8203307 A BR8203307 A BR 8203307A
Authority
BR
Brazil
Prior art keywords
designification
targeting
processing
materials containing
containing cellulose
Prior art date
Application number
BR8203307A
Other languages
English (en)
Portuguese (pt)
Inventor
Raimo Malinen
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 BR8203307A publication Critical patent/BR8203307A/pt

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)
BR8203307A 1981-06-10 1982-06-04 Processo para alvejamento e deslignificacao de materiais que contem celulose BR8203307A (pt)

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 (1)

Publication Number Publication Date
BR8203307A true BR8203307A (pt) 1983-05-24

Family

ID=8514486

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8203307A BR8203307A (pt) 1981-06-10 1982-06-04 Processo para alvejamento e deslignificacao de materiais que contem celulose

Country Status (4)

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

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
FR3077895B1 (fr) 2018-02-09 2020-02-28 Sas Woodoo Dispositif de detection tactile avec interface tactile en materiau composite
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

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
MX156288A (es) 1988-08-08
FI67241B (fi) 1984-10-31
FI811800A0 (fi) 1981-06-10
FR2507639B1 (enExample) 1985-04-12
FR2507639A1 (fr) 1982-12-17

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Legal Events

Date Code Title Description
MM Lapse due to non-payment of fees (art. 50)