FI20077130A - Menetelmä valkaistun kemiallisen massan käsittelemiseksi - Google Patents

Menetelmä valkaistun kemiallisen massan käsittelemiseksi Download PDF

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Publication number
FI20077130A
FI20077130A FI20077130A FI20077130A FI20077130A FI 20077130 A FI20077130 A FI 20077130A FI 20077130 A FI20077130 A FI 20077130A FI 20077130 A FI20077130 A FI 20077130A FI 20077130 A FI20077130 A FI 20077130A
Authority
FI
Finland
Prior art keywords
treatment
bleached pulp
chemically bleached
chemically
pulp
Prior art date
Application number
FI20077130A
Other languages
English (en)
Swedish (sv)
Inventor
Mikael Lindstrom
Martin Ragnar
Helena Stand
Original Assignee
Gl&V Man Hungary Kft
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 Gl&V Man Hungary Kft filed Critical Gl&V Man Hungary Kft
Publication of FI20077130A publication Critical patent/FI20077130A/fi

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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
    • 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
    • D21C9/1047—Conserving the bleached pulp
    • 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
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI20077130A 2005-02-24 2007-09-20 Menetelmä valkaistun kemiallisen massan käsittelemiseksi FI20077130A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0500434A SE0500434L (sv) 2005-02-24 2005-02-24 Behandling av slutblekt massa med i ett milt alkaliskt syrgassteg för att reducera eftergulning
PCT/SE2006/000112 WO2006091140A1 (en) 2005-02-24 2006-01-26 Method for treatment of bleached chemical pulp

Publications (1)

Publication Number Publication Date
FI20077130A true FI20077130A (fi) 2007-09-20

Family

ID=36889322

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20077130A FI20077130A (fi) 2005-02-24 2007-09-20 Menetelmä valkaistun kemiallisen massan käsittelemiseksi

Country Status (4)

Country Link
BR (1) BRPI0608555A2 (fi)
FI (1) FI20077130A (fi)
SE (1) SE0500434L (fi)
WO (1) WO2006091140A1 (fi)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA632280A (en) * 1958-07-02 1961-12-05 Kimberly-Clark Corporation Manufacture of bleached cellulosic products resistant to brightness reversion
GB1062734A (en) * 1963-03-21 1967-03-22 Mo Och Domsjoe Ab Improvements in or relating to bleaching cellulose pulp
JP2004052115A (ja) * 2002-07-16 2004-02-19 Nippon Paper Industries Co Ltd ケミカルパルプの退色性改善方法

Also Published As

Publication number Publication date
BRPI0608555A2 (pt) 2010-01-12
SE528066C2 (sv) 2006-08-22
SE0500434L (sv) 2006-08-22
WO2006091140A1 (en) 2006-08-31

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Legal Events

Date Code Title Description
MA Patent expired