SE0302088L - Processer för xylanasbehandling av blekning - Google Patents
Processer för xylanasbehandling av blekningInfo
- Publication number
- SE0302088L SE0302088L SE0302088A SE0302088A SE0302088L SE 0302088 L SE0302088 L SE 0302088L SE 0302088 A SE0302088 A SE 0302088A SE 0302088 A SE0302088 A SE 0302088A SE 0302088 L SE0302088 L SE 0302088L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- bleaching
- xylanase
- chemical
- processes
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 238000004061 bleaching Methods 0.000 title abstract 4
- 101710121765 Endo-1,4-beta-xylanase Proteins 0.000 title abstract 3
- 229920001131 Pulp (paper) Polymers 0.000 abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- 238000004076 pulp bleaching Methods 0.000 abstract 2
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- 102000004190 Enzymes Human genes 0.000 abstract 1
- 108090000790 Enzymes Proteins 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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
- D21C9/1057—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
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26285801P | 2001-01-18 | 2001-01-18 | |
PCT/CA2002/000065 WO2002057541A2 (en) | 2001-01-18 | 2002-01-18 | Use of xylanase in pulp bleaching |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0302088D0 SE0302088D0 (sv) | 2003-07-17 |
SE0302088L true SE0302088L (sv) | 2003-09-12 |
Family
ID=22999362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0302088A SE0302088L (sv) | 2001-01-18 | 2003-07-17 | Processer för xylanasbehandling av blekning |
Country Status (6)
Country | Link |
---|---|
US (1) | US7320741B2 (xx) |
AU (1) | AU2002229430A1 (xx) |
CA (1) | CA2435279A1 (xx) |
FI (1) | FI20031060A (xx) |
SE (1) | SE0302088L (xx) |
WO (1) | WO2002057541A2 (xx) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002226210A1 (en) * | 2000-12-22 | 2002-07-08 | Iogen Bio-Products Corporation | Alkaline extraction stages comprising xylanase |
WO2003074780A1 (en) * | 2002-03-06 | 2003-09-12 | Iogen Bio-Products Corporation | Xylanase treatment of chemical pulp |
EP1516053B1 (en) | 2002-06-14 | 2012-10-17 | Verenium Corporation | Xylanases, nucleic adics encoding them and methods for making and using them |
US20040112555A1 (en) * | 2002-12-03 | 2004-06-17 | Jeffrey Tolan | Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof |
WO2006047713A2 (en) * | 2004-10-27 | 2006-05-04 | Novozymes North America, Inc. | Enzymatic-assisted chlorine dioxide treatment |
EP1880053B1 (en) * | 2005-05-04 | 2019-07-31 | Novozymes North America, Inc. | Chlorine dioxide treatment compositions and processes |
EP3406621A1 (en) | 2006-02-14 | 2018-11-28 | BP Corporation North America Inc. | Xylanases, nucleic acids encoding them and methods for making and using them |
FI122898B (fi) * | 2009-01-14 | 2012-08-31 | Linde Ag | Menetelmä selluloosamassan pH:n säätämiseksi, sellun tai paperin valmistus selluloosamassasta ja (bi)karbonaattipoiston käyttö haponkulutuksen vähentämiseksi |
WO2012015452A1 (en) * | 2009-11-11 | 2012-02-02 | International Paper Company | Effect of low dose xylanase on pulp in prebleach treatment process |
US8497097B2 (en) * | 2010-08-11 | 2013-07-30 | Georgia Tech Research Corporation | Chlorine dioxide treatment of biomass feedstock |
CN104088185B (zh) * | 2014-06-11 | 2016-06-22 | 华南理工大学 | 一种纸浆的生物质基酶预处理漂白方法 |
BR112017009958B1 (pt) | 2014-11-17 | 2023-02-07 | Novozymes A/S | Método para remoção de hemiceluloses de polpa alcalina de classe de papel não branqueada ou parcialmente branqueada |
CN105200836A (zh) * | 2015-09-24 | 2015-12-30 | 广西大学 | 一种生物酶预处理辅助竹浆ecf漂白的方法 |
EP4230791A1 (en) * | 2022-02-18 | 2023-08-23 | AB Enzymes GmbH | A bleaching process |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US166236A (en) * | 1875-08-03 | Improvement in sewing-machines | ||
CA1154941A (en) * | 1980-06-13 | 1983-10-11 | John G. Medway | Brick molding machine |
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 |
FI90888B (fi) | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Menetelmä selluloosamassan valkaisemiseksi |
WO1991002840A1 (en) | 1989-08-14 | 1991-03-07 | Cultor Oy | Improvement of oxygen bleaching of pulp |
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 |
WO1991011533A1 (en) * | 1990-01-26 | 1991-08-08 | E.I. Du Pont De Nemours And Company | Method for isolating primer extension products from template-directed dna polymerase reactions |
FI89814C (fi) * | 1990-02-02 | 1993-11-25 | Enso Gutzeit Oy | Foerfarande foer blekning av cellulosamassa |
DE4129739A1 (de) | 1990-09-11 | 1992-03-12 | Sandoz Ag | Chlorfreies bleichen von papierpulpe |
FI905456A (fi) | 1990-11-02 | 1992-05-03 | Enso Gutzeit Oy | Foerfarande foer blekning av cellulosamassa. |
FR2672066B1 (fr) * | 1991-01-25 | 1997-01-31 | Du Pin Cellulose | Traitement enzymatique d'une pate ligno-cellulosique chimique. |
CA2044100A1 (en) | 1991-06-07 | 1992-12-08 | Janice Hamilton | Biobleaching process |
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 |
DE69331618T2 (de) * | 1992-10-23 | 2002-10-17 | Koninkl Philips Electronics Nv | Verfahren zur Herstellung einer Halbleiteranordnung, wobei ein seitlich abgegrenzter Halbleiterbereich selbst-justiert in einem Halbleiterkörper erzeugt wird |
US5405769A (en) | 1993-04-08 | 1995-04-11 | National Research Council Of Canada | Construction of thermostable mutants of a low molecular mass xylanase |
BE1007651A3 (fr) * | 1993-10-22 | 1995-09-05 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
US5935836A (en) | 1994-07-29 | 1999-08-10 | Rohm Enzyme Finland Oy | Actinomadura xylanase sequences and methods of use |
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 |
AU2523597A (en) * | 1996-03-29 | 1997-10-22 | Pacific Enzymes Limited | A xylanase |
US5759840A (en) * | 1996-09-09 | 1998-06-02 | National Research Council Of Canada | Modification of xylanase to improve thermophilicity, alkalophilicity and thermostability |
AU2001267171A1 (en) * | 2000-05-31 | 2001-12-11 | National Research Council Of Canada | Modified xylanases exhibiting increased thermophilicity and alkalophilicity |
WO2003074780A1 (en) * | 2002-03-06 | 2003-09-12 | Iogen Bio-Products Corporation | Xylanase treatment of chemical pulp |
-
2002
- 2002-01-18 CA CA002435279A patent/CA2435279A1/en not_active Abandoned
- 2002-01-18 WO PCT/CA2002/000065 patent/WO2002057541A2/en not_active Application Discontinuation
- 2002-01-18 AU AU2002229430A patent/AU2002229430A1/en not_active Abandoned
- 2002-01-18 US US10/466,640 patent/US7320741B2/en not_active Expired - Fee Related
-
2003
- 2003-07-11 FI FI20031060A patent/FI20031060A/fi unknown
- 2003-07-17 SE SE0302088A patent/SE0302088L/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2002057541A2 (en) | 2002-07-25 |
US7320741B2 (en) | 2008-01-22 |
SE0302088D0 (sv) | 2003-07-17 |
US20040077071A1 (en) | 2004-04-22 |
AU2002229430A1 (en) | 2002-07-30 |
FI20031060A (fi) | 2003-09-11 |
CA2435279A1 (en) | 2002-07-25 |
WO2002057541A3 (en) | 2003-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE0402037L (sv) | Xylanasbehandling av kemisk massa | |
SE0302088L (sv) | Processer för xylanasbehandling av blekning | |
RU97107353A (ru) | Способ удаления групп гексенуроновых кислот из целлюлозы путем термообработки | |
ATE130888T1 (de) | Verfahren zum bleichen von lignocellulose enthaltendem material. | |
FI964466A (fi) | Menetelmä erityisen vaalean massan valmistamiseksi | |
DE602004007942D1 (de) | Chemische aktivierung und veredelung von südkieferkraftfasern | |
SE0800475L (sv) | Metod för blekning av en massa | |
SE0301773L (sv) | Alkaliska extraktionssteg vilka innefattar xylanas | |
WO2003024875A3 (de) | Verfahren zur biologischen und chemisch-oxydativen aufbereitung von farbstoffhaltigen abwärssern | |
SE9102589D0 (sv) | Chlorine-free process for bleaching pulp | |
SE0200981D0 (sv) | Process for bleaching lignocellulose-containing non-wood pulp | |
FI89814B (fi) | Foerfarande foer blekning av cellulosamassa | |
CA2347454A1 (en) | Method and apparatus for treating pulp | |
US6540872B1 (en) | Process for chlorine dioxide bleaching using a chelating agent without an intermediate wash | |
SE9301161D0 (sv) | Foerfarande foer behandling av processvatten | |
SE9702583L (sv) | Förfarande för massaframställning | |
SE9803052L (sv) | Blekning av massa | |
SE0100977D0 (sv) | Blekning av massa | |
FI952551A0 (fi) | Menetelmä lignoselluloosaa sisältävän massa valkaisemiseksi | |
ATE410542T1 (de) | Zweistufiges chlorbleichverfahren mit filtratrückführung | |
SE9604094D0 (sv) | Förfarande för blekning av massa | |
CA2264423A1 (en) | Method for treatment of pulp | |
BR9106390A (pt) | Processo para alvejamento de polpa quimica | |
SE9300277L (sv) | Förfarande för klorfri blekning av massa, varvid massan surgöres med ättiksyra vid behandlingen med komplexbildare | |
SE9500926L (sv) | Förfarande för blekning av massa |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |