SE526052E8 - Behandling av kemisk massa med xylanas i ett alkaliskt extraktionssteg - Google Patents

Behandling av kemisk massa med xylanas i ett alkaliskt extraktionssteg

Info

Publication number
SE526052E8
SE526052E8 SE0301773A SE0301773A SE526052E8 SE 526052 E8 SE526052 E8 SE 526052E8 SE 0301773 A SE0301773 A SE 0301773A SE 0301773 A SE0301773 A SE 0301773A SE 526052 E8 SE526052 E8 SE 526052E8
Authority
SE
Sweden
Prior art keywords
xylanase
treatment
extraction step
chemical pulp
alkaline extraction
Prior art date
Application number
SE0301773A
Other languages
English (en)
Other versions
SE526052C2 (sv
SE0301773D0 (sv
SE0301773L (sv
SE526052E (sv
Inventor
Jeff Tolan
Corina Popovici
Patrick J Foody
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=22979360&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE526052(E8) "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 SE0301773D0 publication Critical patent/SE0301773D0/sv
Publication of SE0301773L publication Critical patent/SE0301773L/sv
Publication of SE526052C2 publication Critical patent/SE526052C2/sv
Publication of SE526052E publication Critical patent/SE526052E/sv
Publication of SE526052E8 publication Critical patent/SE526052E8/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE0301773A 2000-12-22 2003-06-19 Behandling av kemisk massa med xylanas i ett alkaliskt extraktionssteg SE526052E8 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25816300P 2000-12-22 2000-12-22
PCT/CA2001/001837 WO2002052100A2 (en) 2000-12-22 2001-12-19 Alkaline extraction stages comprising xylanase

Publications (5)

Publication Number Publication Date
SE0301773D0 SE0301773D0 (sv) 2003-06-19
SE0301773L SE0301773L (sv) 2003-08-22
SE526052C2 SE526052C2 (sv) 2005-06-21
SE526052E SE526052E (sv) 2010-02-09
SE526052E8 true SE526052E8 (sv) 2015-10-20

Family

ID=22979360

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0301773A SE526052E8 (sv) 2000-12-22 2003-06-19 Behandling av kemisk massa med xylanas i ett alkaliskt extraktionssteg

Country Status (6)

Country Link
US (1) US7541175B1 (sv)
AU (1) AU2002226210A1 (sv)
CA (1) CA2432788C (sv)
FI (1) FI20030899A (sv)
SE (1) SE526052E8 (sv)
WO (1) WO2002052100A2 (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2432788C (en) 2000-12-22 2008-10-07 Iogen Bio-Products Corporation Alkaline extraction stages comprising xylanase
US7368036B2 (en) * 2002-03-06 2008-05-06 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
CN101967490B (zh) 2002-06-14 2014-07-16 先正达公司 木聚糖酶、编码木聚糖酶的核酸以及制备和应用它们的方法
DK1989302T3 (en) 2006-02-14 2018-07-23 Bp Corp North America Inc XYLANASES, NUCLEIC ACID CODING THEM AND PROCEDURES FOR THEIR PREPARATION AND USE
RU2464313C2 (ru) * 2006-04-12 2012-10-20 Нэйшенл Рисерч Каунсил Оф Кэнэда Модифицированная ксиланаза
FI129086B (sv) * 2012-09-14 2021-06-30 Teknologian Tutkimuskeskus Vtt Oy Förfarande för framställning av dissolvingmassa
CA2965427A1 (en) * 2014-11-17 2016-05-26 Novozymes A/S Enzymatic process combined with hot caustic extraction for the removal of hemicelluloses from paper-grade pulp
FI127996B (sv) * 2016-07-01 2019-07-15 Kemira Oyj Process för behandling av cellulosa
JP7135334B2 (ja) * 2018-02-22 2022-09-13 株式会社豊田中央研究所 キシラナーゼ及びその利用
CN114402105B (zh) * 2019-07-26 2024-01-30 诺维信公司 纸浆的酶处理
CN117005231A (zh) * 2023-09-07 2023-11-07 齐鲁工业大学(山东省科学院) 一种生物酶复合预处理改善麦草氧碱浆性能的方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
FI86896B (fi) 1989-05-04 1992-07-15 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa.
FI89814C (sv) 1990-02-02 1993-11-25 Enso Gutzeit Oy Förfarande för blekning av cellulosamassa
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
DE4129739A1 (de) 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
CA2058179C (en) 1991-12-20 1999-02-09 Roland Drolet Basic electrophysiological conditioning system and method
US6007678A (en) 1992-11-27 1999-12-28 Eka Nobel Ab Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof
BE1007651A3 (fr) * 1993-10-22 1995-09-05 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
WO1995018219A1 (en) 1993-12-24 1995-07-06 Gist-Brocades N.V. Alkali-tolerant xylanases
US5437992A (en) 1994-04-28 1995-08-01 Genencor International, Inc. Five thermostable xylanases from microtetraspora flexuosa for use in delignification and/or bleaching of pulp
US5620563A (en) 1994-10-31 1997-04-15 Pulp Paper Res Inst Process for delignification and bleaching of chemical wood pulps with hydrogen peroxide and a dicyandiamide activator
JP3435946B2 (ja) 1994-12-21 2003-08-11 王子製紙株式会社 耐熱性キシラナーゼ
WO1997022692A1 (en) * 1995-12-18 1997-06-26 Röhm Enzyme Finland OY Novel xylanases, genes encoding them, and uses thereof
US5759840A (en) * 1996-09-09 1998-06-02 National Research Council Of Canada Modification of xylanase to improve thermophilicity, alkalophilicity and thermostability
CA2432788C (en) 2000-12-22 2008-10-07 Iogen Bio-Products Corporation Alkaline extraction stages comprising xylanase
US7320741B2 (en) * 2001-01-18 2008-01-22 Iogen Bio-Products Corporation Method of xylanase treatment in a chlorine dioxide bleaching sequence
US7368036B2 (en) * 2002-03-06 2008-05-06 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp

Also Published As

Publication number Publication date
WO2002052100A2 (en) 2002-07-04
SE526052C2 (sv) 2005-06-21
US7541175B1 (en) 2009-06-02
SE0301773D0 (sv) 2003-06-19
WO2002052100A3 (en) 2003-06-12
CA2432788C (en) 2008-10-07
SE0301773L (sv) 2003-08-22
SE526052E (sv) 2010-02-09
AU2002226210A1 (en) 2002-07-08
FI20030899A (sv) 2003-08-20
CA2432788A1 (en) 2002-07-04

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Legal Events

Date Code Title Description
RPOP Patent has been republished in amended form after opposition
NUG Patent has lapsed
CORR Corrections

Free format text: THE FOLLOWING PUBLICATIONS HAVE BEEN CORRECTED WITH A NEW FRONT PAGE; CLASS DATA WAS MISSING