ES2047950T3 - Procedimiento para el tratamiento de pasta quimica lignocelulosica. - Google Patents

Procedimiento para el tratamiento de pasta quimica lignocelulosica.

Info

Publication number
ES2047950T3
ES2047950T3 ES90913469T ES90913469T ES2047950T3 ES 2047950 T3 ES2047950 T3 ES 2047950T3 ES 90913469 T ES90913469 T ES 90913469T ES 90913469 T ES90913469 T ES 90913469T ES 2047950 T3 ES2047950 T3 ES 2047950T3
Authority
ES
Spain
Prior art keywords
treatment
pasta
procedure
lignocellulosic
chemical
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.)
Expired - Lifetime
Application number
ES90913469T
Other languages
English (en)
Inventor
Lars Saaby Pedersen
Steen Skjold-Joergensen
Lisbeth Anker
Helen F Austin
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.)
Novo Nordisk AS
Original Assignee
Novo Nordisk AS
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
Application filed by Novo Nordisk AS filed Critical Novo Nordisk AS
Application granted granted Critical
Publication of ES2047950T3 publication Critical patent/ES2047950T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Materials For Medical Uses (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

EL PROCESO CONSISTE EN EL TRATAMIENTO DE LA PULPA CON UNA XILANASA ALCALINA A UNOS VALORES DE PH SUPERIORES A 7,5 CON EL TRATAMIENTO POSTERIOR DE LA PULPA ASI TRATARA CON CLORO CON UN MULTIPLO DEL CLORO ACTIVO DE 0,2 O MENOR EN LA PRIMERA ETAPA DE CLORINACION. DE ESTE MODO SE PUEDE REDUCIR EL TIEMPO NECESARIO PARA EL PRETRATAMIENTO ENZIMATICO Y SE REDUCE ADEMAS LA NECESIDAD DE LA CANTIDAD DE CLORO ACTIVO EN LA PRIMERA ETAPA DE CLORINACION
ES90913469T 1989-08-25 1990-08-24 Procedimiento para el tratamiento de pasta quimica lignocelulosica. Expired - Lifetime ES2047950T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK420289A DK420289D0 (da) 1989-08-25 1989-08-25 Fremgangsmaade til behandling af lignocellulosepulp

Publications (1)

Publication Number Publication Date
ES2047950T3 true ES2047950T3 (es) 1994-03-01

Family

ID=8131254

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90913469T Expired - Lifetime ES2047950T3 (es) 1989-08-25 1990-08-24 Procedimiento para el tratamiento de pasta quimica lignocelulosica.

Country Status (14)

Country Link
EP (1) EP0489104B1 (es)
JP (1) JPH05500087A (es)
AT (1) ATE98713T1 (es)
AU (1) AU635070B2 (es)
BR (1) BR9007608A (es)
CA (1) CA2065244A1 (es)
DE (1) DE69005308T2 (es)
DK (2) DK420289D0 (es)
ES (1) ES2047950T3 (es)
FI (1) FI920798A0 (es)
NO (1) NO175948C (es)
NZ (1) NZ235039A (es)
PT (1) PT95094B (es)
WO (1) WO1991002839A1 (es)

Families Citing this family (26)

* 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
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
DK30991D0 (da) * 1991-02-22 1991-02-22 Novo Nordisk As Hidtil ukendte enzymer
DE4129739A1 (de) * 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
EP0507723A1 (en) * 1991-04-02 1992-10-07 Novo Nordisk A/S Xylanase, corresponding recombinant DNA sequence, xylanase containing agent, and use of the agent
DK69591D0 (da) * 1991-04-18 1991-04-18 Novo Nordisk As Nye mikroorganismer
FI108800B (fi) * 1991-05-07 2002-03-28 Iogen Corp Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa
DK175391D0 (da) * 1991-10-18 1991-10-18 Novo Nordisk As Nye enzymer
CA2082185C (en) * 1991-11-26 2004-01-20 Alexander R. Pokora Protease catalyzed treatments of lignocellulose materials
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
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
GB2279955B (en) 1993-07-15 1998-02-18 Solvay Xylanase derived from a Bacillus species, expression vectors for such xylanase and other proteins, host organisms therefor and use thereof
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
DE4439149C2 (de) * 1994-11-03 1997-07-31 Thueringisches Inst Textil Verfahren zur Herstellung einer homogenen Celluloselösung
US5725732A (en) * 1994-11-18 1998-03-10 P. H. Glatfelter Company Process for treating hardwood pulp with an enzyme mixture to reduce vessel element picking
US5770012A (en) * 1994-11-18 1998-06-23 P. H. Glatfelter Co. Process for treating paper machine stock containing bleached hardwood pulp with an enzyme mixture to reduce vessel element picking
US5961735A (en) * 1995-06-21 1999-10-05 North Carolina State University Method of cleaning papermaking felts with enzymes
CA2285244A1 (en) * 1997-03-31 1998-10-08 David R. Whitmire Enzyme aided removal of color from wood pulps
CN101864406B (zh) 2001-06-06 2016-03-30 诺维信公司 内切-β-1,4-葡聚糖酶
WO2009073709A1 (en) 2007-12-06 2009-06-11 Novozymes A/S Polypeptides having acetylxylan esterase activity and polynucleotides encoding same
CA2775347A1 (en) 2009-09-29 2011-04-07 Novozymes A/S Polypeptides having xylanase activity and polynucleotides encoding same
ES2574054T3 (es) 2009-11-06 2016-06-14 Novozymes, Inc. Polipéptidos con actividad de xilanasa y polinucleótidos que los codifican

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81395B (fi) * 1988-03-14 1990-06-29 Cultor Oy Foerfarande foer blekning av cellulosamassa.
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
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

Also Published As

Publication number Publication date
NZ235039A (en) 1991-12-23
FI920798A0 (fi) 1992-02-24
NO175948B (no) 1994-09-26
EP0489104A1 (en) 1992-06-10
DE69005308T2 (de) 1994-04-28
NO920734D0 (no) 1992-02-24
NO175948C (no) 1995-01-04
PT95094B (pt) 1997-05-28
NO920734L (no) 1992-02-24
JPH05500087A (ja) 1993-01-14
AU635070B2 (en) 1993-03-11
ATE98713T1 (de) 1994-01-15
DK0489104T3 (da) 1994-04-18
AU6358490A (en) 1991-04-03
WO1991002839A1 (en) 1991-03-07
PT95094A (pt) 1991-04-18
CA2065244A1 (en) 1991-02-26
DE69005308D1 (de) 1994-01-27
BR9007608A (pt) 1992-08-25
EP0489104B1 (en) 1993-12-15
DK420289D0 (da) 1989-08-25

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