ID18347A - BREEDING WOOD BLEACHING METHOD - Google Patents

BREEDING WOOD BLEACHING METHOD

Info

Publication number
ID18347A
ID18347A IDP973629A ID973629A ID18347A ID 18347 A ID18347 A ID 18347A ID P973629 A IDP973629 A ID P973629A ID 973629 A ID973629 A ID 973629A ID 18347 A ID18347 A ID 18347A
Authority
ID
Indonesia
Prior art keywords
bleaching method
wood bleaching
breeding
breeding wood
wood
Prior art date
Application number
IDP973629A
Other languages
Indonesian (id)
Inventor
Ulf Germgard
Original Assignee
Sunds Defibrator Ind 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 Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Publication of ID18347A publication Critical patent/ID18347A/en

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
    • 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)
  • Paper (AREA)
IDP973629A 1996-11-08 1997-11-07 BREEDING WOOD BLEACHING METHOD ID18347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604094A SE507742C2 (en) 1996-11-08 1996-11-08 Bleaching of pulp with chlorine dioxide, alkali and complexing agents without intermediate washes

Publications (1)

Publication Number Publication Date
ID18347A true ID18347A (en) 1998-04-02

Family

ID=20404541

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP973629A ID18347A (en) 1996-11-08 1997-11-07 BREEDING WOOD BLEACHING METHOD

Country Status (6)

Country Link
EP (1) EP0937173A1 (en)
AU (1) AU4972697A (en)
ID (1) ID18347A (en)
SE (1) SE507742C2 (en)
WO (1) WO1998021400A1 (en)
ZA (1) ZA979999B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315863B1 (en) 1998-06-18 2001-11-13 Weyerhaeuser Company Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate
AU5317700A (en) * 1999-06-08 2000-12-28 Eastern Pulp And Paper Corporation Bleaching pulp with high-pressure O2
SE0200981D0 (en) * 2002-03-28 2002-03-28 Eka Chemicals Ab Process for bleaching lignocellulose-containing non-wood pulp
FI123102B (en) * 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Bleaching procedure for chemical pulp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502706E (en) * 1994-04-05 1999-09-27 Mo Och Domsjoe Ab Preparation of bleached cellulose pulp by bleaching with chlorine dioxide and treatment of complexing agents in the same step
SE514697C2 (en) * 1994-08-31 2001-04-02 Valmet Fibertech Ab Elimination of metal ions in pulp bleaching
EP0858526A1 (en) * 1995-02-17 1998-08-19 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide

Also Published As

Publication number Publication date
SE507742C2 (en) 1998-07-06
WO1998021400A1 (en) 1998-05-22
ZA979999B (en) 1998-06-25
SE9604094L (en) 1998-05-09
AU4972697A (en) 1998-06-03
SE9604094D0 (en) 1996-11-08
EP0937173A1 (en) 1999-08-25

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