FI943388A - Förfarande för blekning av pappersmassa - Google Patents
Förfarande för blekning av pappersmassa Download PDFInfo
- Publication number
- FI943388A FI943388A FI943388A FI943388A FI943388A FI 943388 A FI943388 A FI 943388A FI 943388 A FI943388 A FI 943388A FI 943388 A FI943388 A FI 943388A FI 943388 A FI943388 A FI 943388A
- Authority
- FI
- Finland
- Prior art keywords
- bleaching pulp
- bleaching
- pulp
- 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
- 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
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9300745A BE1007272A3 (fr) | 1993-07-15 | 1993-07-15 | Procede pour le blanchiment d'une pate a papier. |
Publications (2)
Publication Number | Publication Date |
---|---|
FI943388A0 FI943388A0 (sv) | 1994-07-15 |
FI943388A true FI943388A (sv) | 1995-01-16 |
Family
ID=3887196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI943388A FI943388A (sv) | 1993-07-15 | 1994-07-15 | Förfarande för blekning av pappersmassa |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0634520A1 (sv) |
JP (1) | JPH0748792A (sv) |
AU (1) | AU682363B2 (sv) |
BE (1) | BE1007272A3 (sv) |
BR (1) | BR9402833A (sv) |
CA (1) | CA2127582A1 (sv) |
FI (1) | FI943388A (sv) |
NO (1) | NO942651L (sv) |
NZ (1) | NZ260982A (sv) |
YU (1) | YU45394A (sv) |
ZA (1) | ZA945110B (sv) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3610686B2 (ja) * | 1996-07-31 | 2005-01-19 | 王子製紙株式会社 | 印刷用塗被紙の製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5179021A (en) * | 1989-02-10 | 1993-01-12 | Gil Inc. (Now Ici Canada Inc.) | Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment |
DE4008893A1 (de) * | 1990-03-20 | 1991-09-26 | Call Hans Peter | Verfahren zum enzymatischen bleichen von zellstoffen |
DK30991D0 (da) * | 1991-02-22 | 1991-02-22 | Novo Nordisk As | Hidtil ukendte enzymer |
NZ239500A (en) * | 1990-08-24 | 1993-08-26 | Novo Nordisk As | Xylanases obtained from bacillus pumilus and use in a lignocellulosic chemical pulping process |
AT400153B (de) * | 1991-05-02 | 1995-10-25 | Voest Alpine Ind Anlagen | Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien |
-
1993
- 1993-07-15 BE BE9300745A patent/BE1007272A3/fr not_active IP Right Cessation
-
1994
- 1994-07-07 CA CA002127582A patent/CA2127582A1/fr not_active Abandoned
- 1994-07-11 EP EP94202003A patent/EP0634520A1/fr not_active Withdrawn
- 1994-07-12 NZ NZ260982A patent/NZ260982A/en unknown
- 1994-07-13 ZA ZA945110A patent/ZA945110B/xx unknown
- 1994-07-13 AU AU67431/94A patent/AU682363B2/en not_active Ceased
- 1994-07-14 NO NO942651A patent/NO942651L/no unknown
- 1994-07-15 JP JP6163768A patent/JPH0748792A/ja active Pending
- 1994-07-15 BR BR9402833A patent/BR9402833A/pt not_active Application Discontinuation
- 1994-07-15 YU YU45394A patent/YU45394A/sh unknown
- 1994-07-15 FI FI943388A patent/FI943388A/sv not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NO942651D0 (no) | 1994-07-14 |
JPH0748792A (ja) | 1995-02-21 |
EP0634520A1 (fr) | 1995-01-18 |
FI943388A0 (sv) | 1994-07-15 |
YU45394A (sh) | 1996-10-18 |
AU6743194A (en) | 1995-01-27 |
BE1007272A3 (fr) | 1995-05-09 |
NO942651L (no) | 1995-01-16 |
ZA945110B (en) | 1995-02-23 |
BR9402833A (pt) | 1995-04-04 |
CA2127582A1 (fr) | 1995-01-16 |
NZ260982A (en) | 1994-12-22 |
AU682363B2 (en) | 1997-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |