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FI20031106A7 - Bleaching step using xylanase in combination with hydrogen peroxide, peracids or combinations thereof - Google Patents

Bleaching step using xylanase in combination with hydrogen peroxide, peracids or combinations thereof Download PDF

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Publication number
FI20031106A7
FI20031106A7 FI20031106A FI20031106A FI20031106A7 FI 20031106 A7 FI20031106 A7 FI 20031106A7 FI 20031106 A FI20031106 A FI 20031106A FI 20031106 A FI20031106 A FI 20031106A FI 20031106 A7 FI20031106 A7 FI 20031106A7
Authority
FI
Finland
Prior art keywords
peracids
pulp
bleaching
xylanase
hydrogen peroxide
Prior art date
Application number
FI20031106A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20031106L (en
Inventor
Jeffrey S Tolan
Miro Suchy
Original Assignee
Iogen Bio Products Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23307737&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI20031106(A7) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Iogen Bio Products Corp filed Critical Iogen Bio Products Corp
Publication of FI20031106L publication Critical patent/FI20031106L/en
Publication of FI20031106A7 publication Critical patent/FI20031106A7/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4453—Cassettes
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Paper (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

Esillä oleva keksintö koskee menetelmiä kemiallisen massan valkaisemiseksi, joissa yhdistetään ksylanaasientsyymejä vetyperoksidiin, perhappoihin tai näiden seokseen. Menetelmä käsittää vaiheet joissa tuotetaan kemiallista massaa, valinnaisesti suoritetaan tämän jälkeen massan happidelignifiointi, ja tämän jälkeen yhdistetään ksylanaasientsyymejä vetyperoksidiin, perhappoihin tai näiden seokseen massan valkaisemiseksi. Menetelmä sallii sekä ksylanaasin että perhappojen käytön tehtaassa samassa valkaisutornissa klooridioksidin ja muiden valkaisukemikaalien käytön vähentämiseksi. Keksinnön mukainen massanvalkaisumenetelmä voidaan suorittaa massatehtaassa monimutkaisen valkaisuprosessin osana.The present invention relates to methods for bleaching chemical pulp, which combine xylanase enzymes with hydrogen peroxide, peracids or a mixture thereof. The method comprises the steps of producing chemical pulp, optionally subsequently oxygen delignifying the pulp, and then combining xylanase enzymes with hydrogen peroxide, peracids or a mixture thereof to bleach the pulp. The method allows the use of both xylanase and peracids in the same bleaching tower in the mill to reduce the use of chlorine dioxide and other bleaching chemicals. The pulp bleaching method according to the invention can be carried out in a pulp mill as part of a complex bleaching process.

FI20031106A 2001-12-03 2002-12-03 Bleaching step using xylanase in combination with hydrogen peroxide, peracids or combinations thereof FI20031106A7 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33455001P 2001-12-03 2001-12-03
PCT/CA2002/001848 WO2003048449A1 (en) 2001-12-03 2002-12-03 Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof

Publications (2)

Publication Number Publication Date
FI20031106L FI20031106L (en) 2003-09-03
FI20031106A7 true FI20031106A7 (en) 2003-09-03

Family

ID=23307737

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20031106A FI20031106A7 (en) 2001-12-03 2002-12-03 Bleaching step using xylanase in combination with hydrogen peroxide, peracids or combinations thereof

Country Status (6)

Country Link
CN (1) CN1293261C (en)
AU (1) AU2002351904A1 (en)
CA (1) CA2436765A1 (en)
FI (1) FI20031106A7 (en)
SE (1) SE526289E8 (en)
WO (1) WO2003048449A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074780A1 (en) * 2002-03-06 2003-09-12 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
JP4967451B2 (en) * 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 Method for producing bleached pulp
CN104404807A (en) * 2014-09-23 2015-03-11 广西大学 Method for reducing AOX forming amount in chlorine dioxide bleaching process of bagasse pulp
EP3399100B1 (en) * 2015-12-29 2025-03-26 Fibria Celulose S.A. Method for producing cellulose pulp, cellulose pulp and use thereof, paper
BR102015032911A2 (en) 2015-12-29 2017-07-04 Fibria Celulose S.A PROCESS FOR PRODUCTION OF PULP PULP, PULP PULP AND ITS USE, PAPER
CN111979823A (en) * 2020-08-07 2020-11-24 齐鲁工业大学 Sulfate wood pulp short-process ECF bleaching process X/D-Z-P (X/Z-D-P)
CN116905262B (en) * 2023-07-14 2025-05-13 北京联新望达科技有限公司 Method for removing lignin from lignocellulose raw material by utilizing complex enzyme

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ239500A (en) * 1990-08-24 1993-08-26 Novo Nordisk As Xylanases obtained from bacillus pumilus and use in a lignocellulosic chemical pulping process
DE4129739A1 (en) * 1990-09-11 1992-03-12 Sandoz Ag Chlorine-free bleaching of paper pulp
FI905456A7 (en) * 1990-11-02 1992-05-03 Enso Gutzeit Oy Method for bleaching cellulose pulp
WO1994020672A1 (en) * 1993-03-12 1994-09-15 University Of Georgia Research Foundation, Inc. Process for bleaching pulp
BE1007651A3 (en) * 1993-10-22 1995-09-05 Solvay Interox Method of laundering of chemical pulp.
DE19632623A1 (en) * 1996-08-13 1998-02-19 Consortium Elektrochem Ind Multi-component system for changing, breaking down or bleaching lignin, lignin-containing materials or similar substances as well as methods for their use
WO1998059108A2 (en) * 1997-06-20 1998-12-30 Blume, Hildegard Oxidation and bleaching system with enzymatically produced oxidizing agents
DE10114341C2 (en) * 2001-03-23 2003-10-02 Rettenmaier & Soehne Gmbh & Co Process for grinding and bleaching cellulosic material, its use and the cellulosic material

Also Published As

Publication number Publication date
WO2003048449A1 (en) 2003-06-12
SE526289E8 (en) 2015-10-20
SE526289C2 (en) 2005-08-16
CN1630756A (en) 2005-06-22
AU2002351904A1 (en) 2003-06-17
SE526289E (en) 2010-02-09
CA2436765A1 (en) 2003-06-12
FI20031106L (en) 2003-09-03
SE0302142D0 (en) 2003-07-29
CN1293261C (en) 2007-01-03
SE0302142L (en) 2003-10-03

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