BR9407083A - Processo de branqueamento de pastas brutas de papel do tipo quimico com a ajuda de ozonio - Google Patents

Processo de branqueamento de pastas brutas de papel do tipo quimico com a ajuda de ozonio

Info

Publication number
BR9407083A
BR9407083A BR9407083A BR9407083A BR9407083A BR 9407083 A BR9407083 A BR 9407083A BR 9407083 A BR9407083 A BR 9407083A BR 9407083 A BR9407083 A BR 9407083A BR 9407083 A BR9407083 A BR 9407083A
Authority
BR
Brazil
Prior art keywords
ozone
help
chemical pulp
raw chemical
bleaching raw
Prior art date
Application number
BR9407083A
Other languages
English (en)
Portuguese (pt)
Inventor
Christian Coste
Philippe Kalck
Sylvie Duprat
Jacques Molinier
Jain Xu
Jean-Pierre Zumbrunn
Original Assignee
Degremont
Air Liquide
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 Degremont, Air Liquide filed Critical Degremont
Publication of BR9407083A publication Critical patent/BR9407083A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR9407083A 1993-07-21 1994-07-20 Processo de branqueamento de pastas brutas de papel do tipo quimico com a ajuda de ozonio BR9407083A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9308967A FR2708010B1 (fr) 1993-07-21 1993-07-21 Procédé de blanchiment de pâtes à papier par l'ozone.
PCT/FR1994/000910 WO1995003448A1 (fr) 1993-07-21 1994-07-20 Procede de blanchiment de pates a papier par l'ozone

Publications (1)

Publication Number Publication Date
BR9407083A true BR9407083A (pt) 1996-08-13

Family

ID=9449467

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9407083A BR9407083A (pt) 1993-07-21 1994-07-20 Processo de branqueamento de pastas brutas de papel do tipo quimico com a ajuda de ozonio

Country Status (9)

Country Link
EP (1) EP0712453B1 (es)
JP (1) JPH09505357A (es)
BR (1) BR9407083A (es)
CA (1) CA2167605A1 (es)
DE (2) DE712453T1 (es)
ES (1) ES2086272T3 (es)
FI (1) FI960297A (es)
FR (1) FR2708010B1 (es)
WO (1) WO1995003448A1 (es)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229252A (en) * 1979-01-11 1980-10-21 Weyerhaeuser Company Additives for ozone bleaching

Also Published As

Publication number Publication date
EP0712453B1 (fr) 1997-10-22
ES2086272T3 (es) 1997-12-16
WO1995003448A1 (fr) 1995-02-02
DE712453T1 (de) 1996-10-24
FI960297A0 (fi) 1996-01-22
DE69406457D1 (de) 1997-11-27
FI960297A (fi) 1996-01-22
JPH09505357A (ja) 1997-05-27
DE69406457T2 (de) 1998-02-19
CA2167605A1 (fr) 1995-02-02
ES2086272T1 (es) 1996-07-01
FR2708010B1 (fr) 1995-09-22
EP0712453A1 (fr) 1996-05-22
FR2708010A1 (fr) 1995-01-27

Similar Documents

Publication Publication Date Title
BR9306334A (pt) Processo para o branqueamento de polpa
PT95718A (pt) Processo para o branqueamento isento de cloro de pastas de celulose
BR9404176A (pt) Processo para o branqueamento de uma pasta de papel química
BR9305759A (pt) Processo para a produçao de peróxido de hidrogenio
BR9302764A (pt) Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao
BR9608523A (pt) Processo para a produção de composições de alvejamento de hipoclorito
FI894028A (fi) Sellumassan valkaisu otsoni/kloori-seoksilla
FI945722A0 (fi) Kierrätetyn paperimassan valkaisu pelkistys-hapetus-sekvenssillä
BR9405953A (pt) Processo ozônio/perácido aperfeiçoado para a delignificação de um material lignocelulósico
FI961419A (fi) Menetelmä kemiallisen paperimassan käsittelemiseksi käyttämättä klooripitoisia kemikaaleja
BR9205620A (pt) Polpa quimica, e, processo de branqueamento de polpa quimica.
BR9305899A (pt) Digestão modificada de polpa de papel seguida por branqueamento de ozônio
BR9408532A (pt) Processo para a cocção contínua de polpa química
BR9406395A (pt) Processo de produção de papel
BR9407083A (pt) Processo de branqueamento de pastas brutas de papel do tipo quimico com a ajuda de ozonio
PL287415A1 (en) Process for bleaching paper pulp with chlorine dioxide
BR9405943A (pt) Processo para a deslignificacão de uma pasta de papel quimica
BR9307443A (pt) Processo para alvejar polpa com produtos químicos isentos de cloro
ZA915144B (en) Pneumatic reactor ozone bleaching of paper pulp
FI945202A0 (fi) Kemiallisen massan valkaisu
BR9407555A (pt) Processo para o branqueamento de material de fibra contendo lignocelulose na forma de pasta quimica sem que se utilize agentes de branqueamento clóricos
PT88164A (pt) Processo para a limpeza de oxigenio a partir de aguas industriais com utilizacao de reductona morfolinohexose
BR9406193A (pt) Processo para alvejar pasta de material de fibra celulósica sem o uso de cloro
FI103818B1 (fi) Menetelmä massan valkaisemiseksi
NO951464D0 (no) Fremgangsmåte til behandling av sulfittmasse för bleking med oksygenholdige kjemikalier

Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law