BR9106763A - PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE - Google Patents
PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTEInfo
- Publication number
- BR9106763A BR9106763A BR919106763A BR9106763A BR9106763A BR 9106763 A BR9106763 A BR 9106763A BR 919106763 A BR919106763 A BR 919106763A BR 9106763 A BR9106763 A BR 9106763A BR 9106763 A BR9106763 A BR 9106763A
- Authority
- BR
- Brazil
- Prior art keywords
- treatment
- appliances
- washing
- lignocellulosic
- paste
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A process for treatment of lignocellulosic pulp comprising a multistage washing of the unbleached kraft brown stock and a xylanase treatment. The xylanase treatment is carried out in a holding tank introduced upstream the first washing unit or downstream one or more of the other washing units except for the last washing unit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK203490A DK203490D0 (en) | 1990-08-24 | 1990-08-24 | PROCEDURE FOR TREATING LIGNOCELLULOS PULP AND APPARATUS FOR PERFORMING THE PROCESS |
PCT/DK1991/000239 WO1992003608A1 (en) | 1990-08-24 | 1991-08-21 | Process for treatment of lignocellulosic pulp and apparatus for performance of the process |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9106763A true BR9106763A (en) | 1993-06-29 |
Family
ID=8109613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR919106763A BR9106763A (en) | 1990-08-24 | 1991-08-21 | PROCESS AND APPLIANCES FOR TREATMENT OF LIGNOCELLULOSIC PASTE |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0547100B1 (en) |
JP (1) | JPH05509137A (en) |
AT (1) | ATE118842T1 (en) |
BR (1) | BR9106763A (en) |
CA (1) | CA2090338A1 (en) |
DE (1) | DE69107620D1 (en) |
DK (1) | DK203490D0 (en) |
ES (1) | ES2069307T3 (en) |
FI (1) | FI930803A (en) |
NZ (1) | NZ239501A (en) |
WO (1) | WO1992003608A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002311012A1 (en) | 2001-06-06 | 2002-12-16 | Novozymes A/S | Endo-beta-1,4-glucanase from bacillus |
EP1516053B1 (en) | 2002-06-14 | 2012-10-17 | Verenium Corporation | Xylanases, nucleic adics encoding them and methods for making and using them |
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 |
WO2009073709A1 (en) | 2007-12-06 | 2009-06-11 | Novozymes A/S | Polypeptides having acetylxylan esterase activity and polynucleotides encoding same |
EP2483403B1 (en) | 2009-09-29 | 2017-11-15 | Novozymes Inc. | Polypeptides having xylanase activity and polynucleotides encoding same |
CN102639697B (en) | 2009-11-06 | 2015-03-25 | 诺维信股份有限公司 | Polypeptides having xylanase activity and polynucleotides encoding same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68914112T2 (en) * | 1988-11-23 | 1994-08-04 | Sandoz Ag | Use of enzymes from Aureobasidium pullulans for pulp bleaching. |
FI90888B (en) * | 1989-02-14 | 1993-12-31 | Enso Gutzeit Oy | Method for bleaching cellulose pulp |
-
1990
- 1990-08-24 DK DK203490A patent/DK203490D0/en not_active Application Discontinuation
-
1991
- 1991-08-21 ES ES91915560T patent/ES2069307T3/en not_active Expired - Lifetime
- 1991-08-21 BR BR919106763A patent/BR9106763A/en not_active Application Discontinuation
- 1991-08-21 EP EP91915560A patent/EP0547100B1/en not_active Expired - Lifetime
- 1991-08-21 CA CA002090338A patent/CA2090338A1/en not_active Abandoned
- 1991-08-21 JP JP3514774A patent/JPH05509137A/en active Pending
- 1991-08-21 DE DE69107620T patent/DE69107620D1/en not_active Expired - Lifetime
- 1991-08-21 AT AT91915560T patent/ATE118842T1/en not_active IP Right Cessation
- 1991-08-21 WO PCT/DK1991/000239 patent/WO1992003608A1/en active IP Right Grant
- 1991-08-22 NZ NZ239501A patent/NZ239501A/en unknown
-
1993
- 1993-02-23 FI FI930803A patent/FI930803A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE118842T1 (en) | 1995-03-15 |
CA2090338A1 (en) | 1992-02-25 |
DE69107620D1 (en) | 1995-03-30 |
NZ239501A (en) | 1993-01-27 |
EP0547100A1 (en) | 1993-06-23 |
WO1992003608A1 (en) | 1992-03-05 |
FI930803A0 (en) | 1993-02-23 |
EP0547100B1 (en) | 1995-02-22 |
JPH05509137A (en) | 1993-12-16 |
DK203490D0 (en) | 1990-08-24 |
FI930803A (en) | 1993-02-23 |
ES2069307T3 (en) | 1995-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FA8 | Dismissal: dismissal - article 36, par. 1 of industrial property law |