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CA2436765A1 - Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof - Google Patents

Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof Download PDF

Info

Publication number
CA2436765A1
CA2436765A1 CA002436765A CA2436765A CA2436765A1 CA 2436765 A1 CA2436765 A1 CA 2436765A1 CA 002436765 A CA002436765 A CA 002436765A CA 2436765 A CA2436765 A CA 2436765A CA 2436765 A1 CA2436765 A1 CA 2436765A1
Authority
CA
Canada
Prior art keywords
pulp
bleaching
xylanase
hydrogen peroxide
stage
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.)
Abandoned
Application number
CA002436765A
Other languages
English (en)
French (fr)
Inventor
Miro Suchy
Jeffrey Tolan
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.)
Iogen Corp
Original Assignee
Individual
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=CA2436765(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2436765A1 publication Critical patent/CA2436765A1/en
Abandoned 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
    • 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)
CA002436765A 2001-12-03 2002-12-03 Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof Abandoned CA2436765A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US33455001P 2001-12-03 2001-12-03
US60/334,550 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 (1)

Publication Number Publication Date
CA2436765A1 true CA2436765A1 (en) 2003-06-12

Family

ID=23307737

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002436765A Abandoned CA2436765A1 (en) 2001-12-03 2002-12-03 Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof

Country Status (6)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003208216A1 (en) * 2002-03-06 2003-09-16 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
JP4967451B2 (ja) * 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 漂白パルプの製造方法
CN104404807A (zh) * 2014-09-23 2015-03-11 广西大学 一种减少蔗渣浆二氧化氯漂白过程aox形成量的方法
EP3399100B1 (en) * 2015-12-29 2025-03-26 Fibria Celulose S.A. Method for producing cellulose pulp, cellulose pulp and use thereof, paper
BR102015032911A2 (pt) 2015-12-29 2017-07-04 Fibria Celulose S.A Process for the production of pulp pulp, pulp pulp and its use, paper
CN111979823A (zh) * 2020-08-07 2020-11-24 齐鲁工业大学 一种硫酸盐木浆短程序ecf漂白工艺x/d-z-p（x/z-d-p）
CN116905262B (zh) * 2023-07-14 2025-05-13 北京联新望达科技有限公司 一种利用复合酶从木质纤维素原料中去除木质素的方法

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 (de) * 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
FI905456A7 (fi) * 1990-11-02 1992-05-03 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi
WO1994020672A1 (en) * 1993-03-12 1994-09-15 University Of Georgia Research Foundation, Inc. Process for bleaching pulp
BE1007651A3 (fr) * 1993-10-22 1995-09-05 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
DE19632623A1 (de) * 1996-08-13 1998-02-19 Consortium Elektrochem Ind Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen sowie Verfahren zu seiner Anwendung
EP1012376A2 (de) * 1997-06-20 2000-06-28 Blume, Hildegard Oxidations- und bleichsystem mit enzymatisch hergestellten oxidationsmitteln
DE10114341C2 (de) * 2001-03-23 2003-10-02 Rettenmaier & Soehne Gmbh & Co Verfahren zum Vermahlen und Bleichen von cellulosehaltigem Material, dessen Verwendung und das cellulosehaltige Material

Also Published As

Publication number Publication date
SE526289E (sv) 2010-02-09
CN1293261C (zh) 2007-01-03
AU2002351904A1 (en) 2003-06-17
FI20031106L (fi) 2003-09-03
SE0302142L (sv) 2003-10-03
WO2003048449A1 (en) 2003-06-12
FI20031106A7 (fi) 2003-09-03
SE526289C2 (sv) 2005-08-16
CN1630756A (zh) 2005-06-22
SE0302142D0 (sv) 2003-07-29
SE526289E8 (sv) 2015-10-20

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued