EP2276883A4 - Method of bleaching pulp with ozone, chlorine dioxide and peroxide - Google Patents

Method of bleaching pulp with ozone, chlorine dioxide and peroxide

Info

Publication number
EP2276883A4
EP2276883A4 EP09746853.2A EP09746853A EP2276883A4 EP 2276883 A4 EP2276883 A4 EP 2276883A4 EP 09746853 A EP09746853 A EP 09746853A EP 2276883 A4 EP2276883 A4 EP 2276883A4
Authority
EP
European Patent Office
Prior art keywords
ozone
peroxide
chlorine dioxide
bleaching pulp
bleaching
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09746853.2A
Other languages
German (de)
French (fr)
Other versions
EP2276883A1 (en
Inventor
Solveig Norden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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 Metso Paper Oy filed Critical Metso Paper Oy
Publication of EP2276883A1 publication Critical patent/EP2276883A1/en
Publication of EP2276883A4 publication Critical patent/EP2276883A4/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • D21C9/147—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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
EP09746853.2A 2008-05-13 2009-04-23 Method of bleaching pulp with ozone, chlorine dioxide and peroxide Withdrawn EP2276883A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0801074A SE532470C2 (en) 2008-05-13 2008-05-13 Final bleaching of oxygen delignified pulp with ozone, chlorine dioxide and peroxide
PCT/SE2009/050422 WO2009139693A1 (en) 2008-05-13 2009-04-23 Method of bleaching pulp with ozone, chlorine dioxide and peroxide

Publications (2)

Publication Number Publication Date
EP2276883A1 EP2276883A1 (en) 2011-01-26
EP2276883A4 true EP2276883A4 (en) 2014-04-02

Family

ID=41318911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09746853.2A Withdrawn EP2276883A4 (en) 2008-05-13 2009-04-23 Method of bleaching pulp with ozone, chlorine dioxide and peroxide

Country Status (5)

Country Link
EP (1) EP2276883A4 (en)
JP (1) JP5478610B2 (en)
CN (1) CN102027167B (en)
SE (1) SE532470C2 (en)
WO (1) WO2009139693A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE532370C2 (en) * 2008-02-28 2009-12-29 Metso Paper Inc Method of bleaching a pulp
SE1650050A1 (en) * 2016-01-18 2017-04-25 Valmet Oy Chlorine dioxide stage for controlling viscosity in dissolving pulps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005076150A (en) * 2003-09-01 2005-03-24 Daio Paper Corp Method for bleaching kraft pulp
JP2006083506A (en) * 2004-09-17 2006-03-30 Mitsubishi Gas Chem Co Inc Method for semi-bleaching chemical pulp for papermaking

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467260B (en) * 1989-12-29 1992-06-22 Kamyr Ab WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
FR2768442B1 (en) * 1997-09-15 1999-10-15 Air Liquide PROCESS FOR BLEACHING A PULP WITH OZONE AND CHLORINE DIOXIDE
EP1101860A1 (en) * 1999-11-19 2001-05-23 Praxair Technology, Inc. Method for bleaching pulp with activated ozone
CN1176269C (en) * 2002-08-01 2004-11-17 山东轻工业学院 Paper pulp bleaching process
JP4894127B2 (en) * 2003-06-06 2012-03-14 日本製紙株式会社 Method for bleaching lignocellulosic material
CN101067287B (en) * 2007-05-31 2011-07-27 王光建 Producing technology for microcrystalline cellulose with waste acid cotton linter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005076150A (en) * 2003-09-01 2005-03-24 Daio Paper Corp Method for bleaching kraft pulp
JP2006083506A (en) * 2004-09-17 2006-03-30 Mitsubishi Gas Chem Co Inc Method for semi-bleaching chemical pulp for papermaking

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009139693A1 *

Also Published As

Publication number Publication date
SE0801074L (en) 2009-11-14
EP2276883A1 (en) 2011-01-26
CN102027167B (en) 2013-06-12
CN102027167A (en) 2011-04-20
JP2011521116A (en) 2011-07-21
WO2009139693A1 (en) 2009-11-19
SE532470C2 (en) 2010-02-02
JP5478610B2 (en) 2014-04-23

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Legal Events

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DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20140304

RIC1 Information provided on ipc code assigned before grant

Ipc: D21C 9/10 20060101AFI20140226BHEP

Ipc: D21C 9/153 20060101ALI20140226BHEP

Ipc: D21C 9/14 20060101ALI20140226BHEP

Ipc: D21C 9/16 20060101ALI20140226BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALMET TECHNOLOGIES, INC.

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