FI900549A - Foerfarande foer blekning av cellulosamassa. - Google Patents
Foerfarande foer blekning av cellulosamassa. Download PDFInfo
- Publication number
- FI900549A FI900549A FI900549A FI900549A FI900549A FI 900549 A FI900549 A FI 900549A FI 900549 A FI900549 A FI 900549A FI 900549 A FI900549 A FI 900549A FI 900549 A FI900549 A FI 900549A
- Authority
- FI
- Finland
- Prior art keywords
- enzyme
- steps
- pulp
- chemical
- decreased
- Prior art date
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
-
- 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
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
-
- 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
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Hard Magnetic Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI900549A FI89814C (fi) | 1990-02-02 | 1990-02-02 | Foerfarande foer blekning av cellulosamassa |
EP91903684A EP0513140B2 (en) | 1990-02-02 | 1991-02-01 | A process for the bleaching of chemical pulp |
DE69113444T DE69113444D1 (de) | 1990-02-02 | 1991-02-01 | Verfahren zum bleichen von chemischem papierzellstoff. |
PCT/FI1991/000033 WO1991011553A1 (en) | 1990-02-02 | 1991-02-01 | A process for the bleaching of chemical pulp |
AT91903684T ATE128498T1 (de) | 1990-02-02 | 1991-02-01 | Verfahren zum bleichen von chemischem papierzellstoff. |
ES91903684T ES2079062T5 (es) | 1990-02-02 | 1991-02-01 | Procedimiento para el blanqueo de pasta papelera quimica. |
CA002075187A CA2075187A1 (en) | 1990-02-02 | 1991-02-01 | Process for the bleaching of chemical pulp |
JP3503752A JPH05509362A (ja) | 1990-02-02 | 1991-02-01 | ケミカルパルプの漂白方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI900549A FI89814C (fi) | 1990-02-02 | 1990-02-02 | Foerfarande foer blekning av cellulosamassa |
FI900549 | 1990-02-02 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI900549A0 FI900549A0 (fi) | 1990-02-02 |
FI900549A true FI900549A (fi) | 1991-08-03 |
FI89814B FI89814B (fi) | 1993-08-13 |
FI89814C FI89814C (fi) | 1993-11-25 |
Family
ID=8529828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI900549A FI89814C (fi) | 1990-02-02 | 1990-02-02 | Foerfarande foer blekning av cellulosamassa |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0513140B2 (fi) |
JP (1) | JPH05509362A (fi) |
AT (1) | ATE128498T1 (fi) |
CA (1) | CA2075187A1 (fi) |
DE (1) | DE69113444D1 (fi) |
ES (1) | ES2079062T5 (fi) |
FI (1) | FI89814C (fi) |
WO (1) | WO1991011553A1 (fi) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI90670C (fi) * | 1991-05-02 | 1994-03-10 | Metsae Serla Oy | Paperinvalmistukseen käytettävän alkalikäsitellyn massan käsittely |
US7816129B2 (en) | 1994-07-29 | 2010-10-19 | Ab Enzymes Gmbh | Production and secretion of proteins of bacterial origin in filamentous fungi |
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 |
US6602700B1 (en) | 1998-09-04 | 2003-08-05 | University Of Georgia Research Foundation, Inc. | Phenolic acid esterases, coding sequences and methods |
EP1109912A1 (en) | 1998-09-04 | 2001-06-27 | University Of Georgia Research Foundation, Inc. | Phenolic acid esterases, coding sequences and methods |
WO2002052100A2 (en) | 2000-12-22 | 2002-07-04 | Iogen Bio-Products Corporation | Alkaline extraction stages comprising xylanase |
AU2002229430A1 (en) * | 2001-01-18 | 2002-07-30 | Iogen Bio-Products Corporation | Use of xylanase in pulp bleaching |
WO2003074780A1 (en) * | 2002-03-06 | 2003-09-12 | Iogen Bio-Products Corporation | Xylanase treatment of chemical pulp |
KR20050010053A (ko) | 2002-06-14 | 2005-01-26 | 다이버사 코포레이션 | 자일라나제, 이를 암호화하는 핵산, 및 이의 제조 및 사용방법 |
CA2946924A1 (en) | 2006-02-14 | 2007-08-23 | Bp Corporation North America Inc. | Xylanases, nucleic acids encoding them and methods for making and using them |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI90888B (fi) * | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Menetelmä selluloosamassan valkaisemiseksi |
ZA904441B (en) * | 1989-06-22 | 1991-03-27 | Int Paper Co | Enzymatic delignification of lignocellulosic material |
-
1990
- 1990-02-02 FI FI900549A patent/FI89814C/fi not_active IP Right Cessation
-
1991
- 1991-02-01 WO PCT/FI1991/000033 patent/WO1991011553A1/en active IP Right Grant
- 1991-02-01 CA CA002075187A patent/CA2075187A1/en not_active Abandoned
- 1991-02-01 ES ES91903684T patent/ES2079062T5/es not_active Expired - Lifetime
- 1991-02-01 JP JP3503752A patent/JPH05509362A/ja active Pending
- 1991-02-01 EP EP91903684A patent/EP0513140B2/en not_active Expired - Lifetime
- 1991-02-01 DE DE69113444T patent/DE69113444D1/de not_active Expired - Lifetime
- 1991-02-01 AT AT91903684T patent/ATE128498T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ES2079062T3 (es) | 1996-01-01 |
FI900549A0 (fi) | 1990-02-02 |
DE69113444D1 (de) | 1995-11-02 |
FI89814C (fi) | 1993-11-25 |
ES2079062T5 (es) | 1998-07-16 |
CA2075187A1 (en) | 1991-08-03 |
JPH05509362A (ja) | 1993-12-22 |
EP0513140B1 (en) | 1995-09-27 |
FI89814B (fi) | 1993-08-13 |
EP0513140A1 (en) | 1992-11-19 |
ATE128498T1 (de) | 1995-10-15 |
EP0513140B2 (en) | 1998-03-18 |
WO1991011553A1 (en) | 1991-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: ENSO-GUTZEIT OY |
|
BB | Publication of examined application | ||
FG | Patent granted |
Owner name: ENSO GUTZEIT OY |
|
MA | Patent expired |