ATE134231T1 - Verbesserung beim bleichen von pulpe - Google Patents

Verbesserung beim bleichen von pulpe

Info

Publication number
ATE134231T1
ATE134231T1 AT90911518T AT90911518T ATE134231T1 AT E134231 T1 ATE134231 T1 AT E134231T1 AT 90911518 T AT90911518 T AT 90911518T AT 90911518 T AT90911518 T AT 90911518T AT E134231 T1 ATE134231 T1 AT E134231T1
Authority
AT
Austria
Prior art keywords
improvement
pulp bleaching
pulp
bleaching
hemicellulose
Prior art date
Application number
AT90911518T
Other languages
English (en)
Inventor
Ilkka Kruus
Jaakko Laine
Marja Koljonen
Original Assignee
Genencor Int Europ
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=23555945&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE134231(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Genencor Int Europ filed Critical Genencor Int Europ
Application granted granted Critical
Publication of ATE134231T1 publication Critical patent/ATE134231T1/de

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/14—Preparation of compounds containing saccharide radicals produced by the action of a carbohydrase (EC 3.2.x), e.g. by alpha-amylase, e.g. by cellulase, hemicellulase
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • Zoology (AREA)
  • Microbiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
AT90911518T 1989-08-14 1990-08-13 Verbesserung beim bleichen von pulpe ATE134231T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39371689A 1989-08-14 1989-08-14

Publications (1)

Publication Number Publication Date
ATE134231T1 true ATE134231T1 (de) 1996-02-15

Family

ID=23555945

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90911518T ATE134231T1 (de) 1989-08-14 1990-08-13 Verbesserung beim bleichen von pulpe

Country Status (12)

Country Link
EP (1) EP0487557B1 (de)
JP (1) JP2890362B2 (de)
AT (1) ATE134231T1 (de)
BR (1) BR9007655A (de)
CA (1) CA2064045C (de)
DE (1) DE69025405T2 (de)
DK (1) DK0487557T3 (de)
ES (1) ES2086408T3 (de)
FI (1) FI920609A0 (de)
NO (1) NO920569D0 (de)
PT (1) PT94984A (de)
WO (1) WO1991002840A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465320B (sv) * 1990-01-10 1991-08-26 Korsnaes Ab Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav
FI108800B (fi) * 1991-05-07 2002-03-28 Iogen Corp Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa
CA2082185C (en) * 1991-11-26 2004-01-20 Alexander R. Pokora Protease catalyzed treatments of lignocellulose materials
US5498534A (en) * 1992-03-25 1996-03-12 The United States Of America As Represented By The Secretary Of Agriculture Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019
US5369024A (en) * 1992-03-25 1994-11-29 The United States Of America As Represented By The Secretary Of Agriculture Xylanase from streptomyces roseiscleroticus NRRL-11019 for removing color from kraft wood pulps
KR100256636B1 (ko) * 1994-04-12 2000-05-15 김충섭 종이내 충전물의 함량을 높이고 스코트 내부결합강도를 증가시키는 종이의 제조방법
DE4439149C2 (de) * 1994-11-03 1997-07-31 Thueringisches Inst Textil Verfahren zur Herstellung einer homogenen Celluloselösung
JP3467903B2 (ja) * 1995-04-28 2003-11-17 王子製紙株式会社 電気絶縁積層板原紙
JPH1046495A (ja) * 1996-07-24 1998-02-17 Oji Paper Co Ltd 印刷用塗被紙及びその製造方法
JP3610686B2 (ja) * 1996-07-31 2005-01-19 王子製紙株式会社 印刷用塗被紙の製造方法
EP0905306A1 (de) 1997-09-26 1999-03-31 Consortium für elektrochemische Industrie GmbH Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien sowie Verfahren zu seiner Anwendung
US6942754B2 (en) 1999-03-23 2005-09-13 Oji Paper Co., Ltd. Process for producing xylooligosaccharide from lignocellulose pulp
CA2627846C (en) * 1999-03-23 2011-01-04 Oji Paper Co., Ltd. Process for bleaching lignocellulose pulp
US6824646B2 (en) 1999-03-23 2004-11-30 Oji Paper Co., Ltd. Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery
US7320741B2 (en) 2001-01-18 2008-01-22 Iogen Bio-Products Corporation Method of xylanase treatment in a chlorine dioxide bleaching sequence
FI20041152L (fi) * 2002-03-06 2004-09-06 Iogen Bio Products Corp Kemiallisen massan ksylanaasikäsittely
JP2018204158A (ja) * 2017-06-09 2018-12-27 王子ホールディングス株式会社 リグノセルロース系原料からの溶解パルプの製造方法

Family Cites Families (2)

* 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.

Also Published As

Publication number Publication date
NO920569L (no) 1992-02-13
JP2890362B2 (ja) 1999-05-10
WO1991002840A1 (en) 1991-03-07
FI920609A7 (fi) 1992-02-13
DK0487557T3 (da) 1996-07-01
DE69025405D1 (de) 1996-03-28
EP0487557A1 (de) 1992-06-03
BR9007655A (pt) 1992-07-07
PT94984A (pt) 1991-04-18
JPH04507268A (ja) 1992-12-17
CA2064045C (en) 2006-02-14
ES2086408T3 (es) 1996-07-01
EP0487557B1 (de) 1996-02-14
CA2064045A1 (en) 1991-02-15
FI920609A0 (fi) 1992-02-13
DE69025405T2 (de) 1996-09-05
NO920569D0 (no) 1992-02-13

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee
RZN Patent revoked