FI960297A0 - Menetelmä paperimassan otsonivalkaisuun - Google Patents

Menetelmä paperimassan otsonivalkaisuun

Info

Publication number
FI960297A0
FI960297A0 FI960297A FI960297A FI960297A0 FI 960297 A0 FI960297 A0 FI 960297A0 FI 960297 A FI960297 A FI 960297A FI 960297 A FI960297 A FI 960297A FI 960297 A0 FI960297 A0 FI 960297A0
Authority
FI
Finland
Prior art keywords
procedure
ozone bleaching
bleaching
ozone
Prior art date
Application number
FI960297A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI960297A (fi
Inventor
Christian Coste
Philippe Kalck
Sylvie Duprat
Jacques Molinier
Jian 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 FI960297A publication Critical patent/FI960297A/fi
Publication of FI960297A0 publication Critical patent/FI960297A0/fi

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)
FI960297A 1993-07-21 1996-01-22 Menetelmä paperimassan otsonivalkaisuun FI960297A0 (fi)

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 (2)

Publication Number Publication Date
FI960297A FI960297A (fi) 1996-01-22
FI960297A0 true FI960297A0 (fi) 1996-01-22

Family

ID=9449467

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960297A FI960297A0 (fi) 1993-07-21 1996-01-22 Menetelmä paperimassan otsonivalkaisuun

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) FI960297A0 (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
WO1995003448A1 (fr) 1995-02-02
CA2167605A1 (fr) 1995-02-02
ES2086272T3 (es) 1997-12-16
DE712453T1 (de) 1996-10-24
FR2708010B1 (fr) 1995-09-22
EP0712453A1 (fr) 1996-05-22
FI960297A (fi) 1996-01-22
DE69406457T2 (de) 1998-02-19
DE69406457D1 (de) 1997-11-27
FR2708010A1 (fr) 1995-01-27
EP0712453B1 (fr) 1997-10-22
BR9407083A (pt) 1996-08-13
ES2086272T1 (es) 1996-07-01
JPH09505357A (ja) 1997-05-27

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