FI20060314A0 - Blekningsförfarande för kemisk massa - Google Patents

Blekningsförfarande för kemisk massa

Info

Publication number
FI20060314A0
FI20060314A0 FI20060314A FI20060314A FI20060314A0 FI 20060314 A0 FI20060314 A0 FI 20060314A0 FI 20060314 A FI20060314 A FI 20060314A FI 20060314 A FI20060314 A FI 20060314A FI 20060314 A0 FI20060314 A0 FI 20060314A0
Authority
FI
Finland
Prior art keywords
chemical pulp
bleaching procedure
bleaching
procedure
pulp
Prior art date
Application number
FI20060314A
Other languages
English (en)
Finnish (fi)
Other versions
FI122626B (sv
FI20060314A (sv
Original Assignee
Laennen Tutkimus Western Res I
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 Laennen Tutkimus Western Res I filed Critical Laennen Tutkimus Western Res I
Publication of FI20060314A0 publication Critical patent/FI20060314A0/sv
Priority to FI20060314A priority Critical patent/FI122626B/sv
Priority to CN200780020370XA priority patent/CN101460676B/zh
Priority to EP20070730655 priority patent/EP2010709A4/en
Priority to US12/295,378 priority patent/US8524038B2/en
Priority to RU2008143245/12A priority patent/RU2415983C2/ru
Priority to CA2647475A priority patent/CA2647475C/en
Priority to PCT/FI2007/050168 priority patent/WO2007113381A1/en
Priority to BRPI0709804A priority patent/BRPI0709804B1/pt
Publication of FI20060314A publication Critical patent/FI20060314A/sv
Priority to ZA2008/08413A priority patent/ZA200808413B/en
Application granted granted Critical
Publication of FI122626B publication Critical patent/FI122626B/sv

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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/16—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)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
FI20060314A 2006-03-31 2006-03-31 Blekningsförfarande för kemisk massa FI122626B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI20060314A FI122626B (sv) 2006-03-31 2006-03-31 Blekningsförfarande för kemisk massa
RU2008143245/12A RU2415983C2 (ru) 2006-03-31 2007-03-27 Способ отбелки химической целлюлозы
EP20070730655 EP2010709A4 (en) 2006-03-31 2007-03-27 METHOD FOR WHITENING CHEMICAL PULP
US12/295,378 US8524038B2 (en) 2006-03-31 2007-03-27 Bleaching process of chemical pulp
CN200780020370XA CN101460676B (zh) 2006-03-31 2007-03-27 化学纸浆的漂白方法
CA2647475A CA2647475C (en) 2006-03-31 2007-03-27 Bleaching process of chemical pulp
PCT/FI2007/050168 WO2007113381A1 (en) 2006-03-31 2007-03-27 Bleaching process of chemical pulp
BRPI0709804A BRPI0709804B1 (pt) 2006-03-31 2007-03-27 processo de branqueamento de polpa química
ZA2008/08413A ZA200808413B (en) 2006-03-31 2008-10-02 Bleaching process of chemical pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20060314 2006-03-31
FI20060314A FI122626B (sv) 2006-03-31 2006-03-31 Blekningsförfarande för kemisk massa

Publications (3)

Publication Number Publication Date
FI20060314A0 true FI20060314A0 (sv) 2006-03-31
FI20060314A FI20060314A (sv) 2007-10-01
FI122626B FI122626B (sv) 2012-04-30

Family

ID=36191984

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20060314A FI122626B (sv) 2006-03-31 2006-03-31 Blekningsförfarande för kemisk massa

Country Status (9)

Country Link
US (1) US8524038B2 (sv)
EP (1) EP2010709A4 (sv)
CN (1) CN101460676B (sv)
BR (1) BRPI0709804B1 (sv)
CA (1) CA2647475C (sv)
FI (1) FI122626B (sv)
RU (1) RU2415983C2 (sv)
WO (1) WO2007113381A1 (sv)
ZA (1) ZA200808413B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2709526C (en) * 2007-12-20 2016-02-02 Mitsubishi Gas Chemical Company Inc. Process for production of bleached pulp
US11591751B2 (en) 2019-09-17 2023-02-28 Gpcp Ip Holdings Llc High efficiency fiber bleaching process

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884752A (en) * 1973-09-17 1975-05-20 Int Paper Co Single vessel wood pulp bleaching with chlorine dioxide followed by sodium hypochlorite or alkaline extraction
AU6537690A (en) * 1989-10-19 1991-05-16 North Carolina State University High efficiency chlorine dioxide pulp bleaching process
US5853535A (en) * 1991-01-28 1998-12-29 Champion International Corporation Process for manufacturing bleached pulp including recycling
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
ZA93224B (en) 1992-01-22 1993-08-18 Olin Corp Gas phase delignification of lignocellulosic material.
FI98537C (sv) * 1993-10-20 1997-07-10 Enso Gutzeit Oy Förfarande för separering av natriumhydroxid ur vitlut
US5509999A (en) * 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
SE502706E (sv) * 1994-04-05 1999-09-27 Mo Och Domsjoe Ab Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg
US6776876B1 (en) * 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
FI954407A (sv) 1995-06-20 1996-12-21 Ahlstrom Machinery Oy Förfarande och anordningar för behandling av massa
JP3698178B2 (ja) * 1995-09-22 2005-09-21 三菱瓦斯化学株式会社 製紙用化学パルプの漂白方法
FI105701B (sv) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Förfarande och anordning för behandling av massa
SE9602079D0 (sv) * 1996-05-29 1996-05-29 Asea Brown Boveri Roterande elektriska maskiner med magnetkrets för hög spänning och ett förfarande för tillverkning av densamma
US6569284B1 (en) * 1996-09-24 2003-05-27 International Paper Company Elemental-chlorine-free bleaching process having an initial Eo or Eop stage
SE9700884L (sv) * 1997-03-12 1998-04-20 Sunds Defibrator Ind Ab Blekning med klordioxid i ett trefassteg
FI105214B (sv) * 1997-11-13 2000-06-30 Kemira Chemicals Oy Effektiverat förfarande för blekning av en kemisk massa
CN100346030C (zh) * 2002-03-06 2007-10-31 埃欧金生物制品公司 化学纸浆的木聚糖酶处理
SE0200981D0 (sv) * 2002-03-28 2002-03-28 Eka Chemicals Ab Process for bleaching lignocellulose-containing non-wood pulp
US20040112555A1 (en) * 2002-12-03 2004-06-17 Jeffrey Tolan Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp

Also Published As

Publication number Publication date
FI122626B (sv) 2012-04-30
WO2007113381A1 (en) 2007-10-11
US8524038B2 (en) 2013-09-03
CA2647475C (en) 2015-06-16
CA2647475A1 (en) 2007-10-11
RU2415983C2 (ru) 2011-04-10
BRPI0709804A2 (pt) 2011-07-26
CN101460676A (zh) 2009-06-17
CN101460676B (zh) 2013-04-10
RU2008143245A (ru) 2010-05-10
EP2010709A4 (en) 2012-04-18
BRPI0709804B1 (pt) 2017-05-02
FI20060314A (sv) 2007-10-01
ZA200808413B (en) 2009-12-30
US20090242152A1 (en) 2009-10-01
EP2010709A1 (en) 2009-01-07

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