DK175185B1 - Fremgangsmåde til blegning af cellulosemasse og anvendelse af enzymer - Google Patents

Fremgangsmåde til blegning af cellulosemasse og anvendelse af enzymer Download PDF

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Publication number
DK175185B1
DK175185B1 DK199002119A DK211990A DK175185B1 DK 175185 B1 DK175185 B1 DK 175185B1 DK 199002119 A DK199002119 A DK 199002119A DK 211990 A DK211990 A DK 211990A DK 175185 B1 DK175185 B1 DK 175185B1
Authority
DK
Denmark
Prior art keywords
pulp
enzyme
bleaching
chlorine
cellulose pulp
Prior art date
Application number
DK199002119A
Other languages
Danish (da)
English (en)
Other versions
DK211990D0 (da
DK211990A (da
Inventor
Marja Vaheri
Mirja Salkinoja-Salonen
Marja Koljonen
Original Assignee
Enso Gutzeit Oy
Genencor Internat Europ 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8526077&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK175185(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enso Gutzeit Oy, Genencor Internat Europ Oy filed Critical Enso Gutzeit Oy
Publication of DK211990D0 publication Critical patent/DK211990D0/da
Publication of DK211990A publication Critical patent/DK211990A/da
Application granted granted Critical
Publication of DK175185B1 publication Critical patent/DK175185B1/da

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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
    • D21C9/12—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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Hard Magnetic Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Detergent Compositions (AREA)
DK199002119A 1988-03-14 1990-09-04 Fremgangsmåde til blegning af cellulosemasse og anvendelse af enzymer DK175185B1 (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI881192A FI81395B (fi) 1988-03-14 1988-03-14 Foerfarande foer blekning av cellulosamassa.
FI881192 1988-03-14
FI8900045 1989-03-13
PCT/FI1989/000045 WO1989008738A1 (en) 1988-03-14 1989-03-13 Procedure for bleaching cellulose pulp

Publications (3)

Publication Number Publication Date
DK211990D0 DK211990D0 (da) 1990-09-04
DK211990A DK211990A (da) 1990-11-07
DK175185B1 true DK175185B1 (da) 2004-06-28

Family

ID=8526077

Family Applications (1)

Application Number Title Priority Date Filing Date
DK199002119A DK175185B1 (da) 1988-03-14 1990-09-04 Fremgangsmåde til blegning af cellulosemasse og anvendelse af enzymer

Country Status (12)

Country Link
EP (1) EP0407421B1 (de)
JP (1) JPH03505758A (de)
AT (1) ATE135429T1 (de)
AU (1) AU626846B2 (de)
BR (1) BR8907314A (de)
CA (1) CA1334581C (de)
DE (1) DE68925967T2 (de)
DK (1) DK175185B1 (de)
FI (1) FI81395B (de)
NO (1) NO174722C (de)
NZ (1) NZ228308A (de)
WO (1) WO1989008738A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298405A (en) * 1986-04-30 1994-03-29 Alko Limited Enzyme preparations with recombinantly-altered cellulose profiles and methods for their production
FI90888B (fi) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi
FI86896B (fi) * 1989-05-04 1992-07-15 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa.
DK420289D0 (da) * 1989-08-25 1989-08-25 Novo Nordisk As Fremgangsmaade til behandling af lignocellulosepulp
NZ235679A (en) * 1989-10-18 1993-01-27 Int Paper Co Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages
SE465320B (sv) * 1990-01-10 1991-08-26 Korsnaes Ab Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav
FI88315C (fi) * 1990-04-04 1993-04-26 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
GB9018426D0 (en) * 1990-08-22 1990-10-03 Sandoz Ltd Improvements in or relating to novel compounds
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
FI108800B (fi) * 1991-05-07 2002-03-28 Iogen Corp Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa
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
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US7320741B2 (en) 2001-01-18 2008-01-22 Iogen Bio-Products Corporation Method of xylanase treatment in a chlorine dioxide bleaching sequence
WO2003074780A1 (en) * 2002-03-06 2003-09-12 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
CN104963206A (zh) * 2014-12-11 2015-10-07 华东理工常熟研究院有限公司 酶改性纸浆纤维、木塑复合材料及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ216726A (en) * 1985-07-15 1990-08-28 Repligen Corp Use of lignin-degrading enzymes from phanerochaete chrysosporium for treatment of wood pulp and e1 effluent
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material
CA2003503A1 (en) * 1988-11-23 1990-05-23 Roberta Lee Farrell Use of aureobasidium pullulans in pulp bleaching

Also Published As

Publication number Publication date
BR8907314A (pt) 1991-03-19
NO174722C (no) 1994-06-22
WO1989008738A1 (en) 1989-09-21
EP0407421B1 (de) 1996-03-13
DK211990D0 (da) 1990-09-04
NZ228308A (en) 1990-06-26
ATE135429T1 (de) 1996-03-15
DE68925967T2 (de) 1996-09-12
FI881192A (fi) 1989-09-15
CA1334581C (en) 1995-02-28
NO174722B (no) 1994-03-14
DE68925967D1 (de) 1996-04-18
FI81395B (fi) 1990-06-29
DK211990A (da) 1990-11-07
EP0407421A1 (de) 1991-01-16
FI881192A0 (fi) 1988-03-14
AU626846B2 (en) 1992-08-13
NO903913D0 (no) 1990-09-07
AU3292389A (en) 1989-10-05
JPH03505758A (ja) 1991-12-12
NO903913L (no) 1990-09-07

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