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FI20002647A0 - Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi - Google Patents

Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi

Info

Publication number
FI20002647A0
FI20002647A0 FI20002647A FI20002647A FI20002647A0 FI 20002647 A0 FI20002647 A0 FI 20002647A0 FI 20002647 A FI20002647 A FI 20002647A FI 20002647 A FI20002647 A FI 20002647A FI 20002647 A0 FI20002647 A0 FI 20002647A0
Authority
FI
Finland
Prior art keywords
finely divided
fibrous material
cellulosic fibrous
treating finely
divided cellulosic
Prior art date
Application number
FI20002647A
Other languages
English (en)
Swedish (sv)
Other versions
FI20002647L (fi
FI20002647A7 (fi
Inventor
Bertil Stromberg
Original Assignee
Andritz Ahlstrom Inc
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 Andritz Ahlstrom Inc filed Critical Andritz Ahlstrom Inc
Publication of FI20002647A0 publication Critical patent/FI20002647A0/fi
Publication of FI20002647L publication Critical patent/FI20002647L/fi
Publication of FI20002647A7 publication Critical patent/FI20002647A7/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping 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
    • D21C9/147—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
    • D21C9/147—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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
FI20002647A 1999-12-02 2000-12-04 Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi FI20002647A7 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16753799P 1999-12-02 1999-12-02
US72242000P 2000-11-28 2000-11-28

Publications (3)

Publication Number Publication Date
FI20002647A0 true FI20002647A0 (fi) 2000-12-04
FI20002647L FI20002647L (fi) 2001-06-03
FI20002647A7 FI20002647A7 (fi) 2001-06-03

Family

ID=95652770

Family Applications (2)

Application Number Title Priority Date Filing Date
FI20002647A FI20002647A7 (fi) 1999-12-02 2000-12-04 Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi
FI20070590A FI20070590L (fi) 1999-12-02 2007-08-07 Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi

Family Applications After (1)

Application Number Title Priority Date Filing Date
FI20070590A FI20070590L (fi) 1999-12-02 2007-08-07 Menetelmä hienonnetun selluloosapitoisen kuitumateriaalin käsittelemiseksi

Country Status (1)

Country Link
FI (2) FI20002647A7 (fi)

Also Published As

Publication number Publication date
FI20070590A7 (fi) 2007-08-07
FI20070590L (fi) 2007-08-07
FI20002647L (fi) 2001-06-03
FI20002647A7 (fi) 2001-06-03

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