SE467582B - Saett vid oxygenblekning - Google Patents
Saett vid oxygenblekningInfo
- Publication number
- SE467582B SE467582B SE8803705A SE8803705A SE467582B SE 467582 B SE467582 B SE 467582B SE 8803705 A SE8803705 A SE 8803705A SE 8803705 A SE8803705 A SE 8803705A SE 467582 B SE467582 B SE 467582B
- Authority
- SE
- Sweden
- Prior art keywords
- temperature
- delignification zone
- pulp
- zone
- delignification
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8803705A SE467582B (sv) | 1988-10-18 | 1988-10-18 | Saett vid oxygenblekning |
CA000614212A CA1337843C (en) | 1988-10-18 | 1989-09-28 | Process for oxygen bleaching |
FI894949A FI91896C (fi) | 1988-10-18 | 1989-10-18 | Menetelmä happivalkaisun yhteydessä |
JP1269259A JPH02145883A (ja) | 1988-10-18 | 1989-10-18 | 繊維質セルロースパルプの酸素漂白方法 |
US07/857,121 US5217575A (en) | 1988-10-18 | 1992-03-24 | Process for oxygen bleaching using two vertical reactors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8803705A SE467582B (sv) | 1988-10-18 | 1988-10-18 | Saett vid oxygenblekning |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8803705D0 SE8803705D0 (sv) | 1988-10-18 |
SE8803705L SE8803705L (sv) | 1990-04-19 |
SE467582B true SE467582B (sv) | 1992-08-10 |
Family
ID=20373661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8803705A SE467582B (sv) | 1988-10-18 | 1988-10-18 | Saett vid oxygenblekning |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH02145883A (ja) |
CA (1) | CA1337843C (ja) |
FI (1) | FI91896C (ja) |
SE (1) | SE467582B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE510740C2 (sv) * | 1996-11-26 | 1999-06-21 | Sunds Defibrator Ind Ab | Styrning av syrgasdelignifiering |
SE522593C2 (sv) * | 1999-07-06 | 2004-02-24 | Kvaerner Pulping Tech | System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material |
RU2479619C2 (ru) * | 2009-11-17 | 2013-04-20 | Феликс Фердинандович Аухадеев | Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы |
-
1988
- 1988-10-18 SE SE8803705A patent/SE467582B/sv not_active IP Right Cessation
-
1989
- 1989-09-28 CA CA000614212A patent/CA1337843C/en not_active Expired - Lifetime
- 1989-10-18 FI FI894949A patent/FI91896C/fi active IP Right Grant
- 1989-10-18 JP JP1269259A patent/JPH02145883A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE8803705L (sv) | 1990-04-19 |
FI894949A0 (fi) | 1989-10-18 |
FI91896C (fi) | 1994-08-25 |
FI91896B (fi) | 1994-05-13 |
SE8803705D0 (sv) | 1988-10-18 |
JPH02145883A (ja) | 1990-06-05 |
CA1337843C (en) | 1996-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI59434B (fi) | Delignifiering och blekning av cellulosa med syre | |
US4198266A (en) | Oxygen delignification of wood pulp | |
DE2729348A1 (de) | Verfahren und vorrichtung zur herstellung von faserstoff in einem unter dampfdruck stehenden mahlapparat | |
US5217575A (en) | Process for oxygen bleaching using two vertical reactors | |
EP1409789A1 (en) | Method of loading a fiber suspension with calcium carbonate | |
EP0511433B1 (en) | Medium consistency pulp ozone bleaching | |
US5034095A (en) | Apparatus and process for the delignification of cellulose pulp | |
US2383684A (en) | Process of continuous alkali treatment of fibrous material | |
DE69304801T2 (de) | Reaktorsystem zur Behandlung von Zellstoff | |
NO880763L (no) | Bruk av gassholdig karbondioksyd for innstilling av ph i cellulosemasse. | |
SE467582B (sv) | Saett vid oxygenblekning | |
ES373574A1 (es) | Procedimiento de fabricacion de estructuras fibriladas. | |
SE461280B (sv) | Behandling av ett fiberhaltigt material foere kokning till massa | |
EP0287626B1 (en) | Control of peroxide bleaching of different pulps | |
US5919337A (en) | Method of continuously isothermally cooking of pulp | |
EP1347092B1 (de) | Verfahren und Vorrichtung zum Einmischen von Fluiden in fliessfähige Medien | |
US3622441A (en) | Multiple discharge stock treatment apparatus and method | |
US3587257A (en) | Bleaching system including a single,triple-deck table washer | |
JP3817264B2 (ja) | 繊維パルプ懸濁液処理方法及び装置 | |
SE467261B (sv) | Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg | |
US6238517B1 (en) | Method for controlling oxygen delignification of pulp | |
SE505147C2 (sv) | Syrgasdelignifiering av massa i ett första HC-steg och ett andra MC-steg | |
PT1397550E (pt) | Método para fornecimento de líquido de lavagem a um processo para cozedura de polpa de celulose | |
SE452896B (sv) | Forfarande for behandling av cellulosamassor | |
AT17908U1 (de) | Verfahren und system zum kochen von leimungsmittel im kreislauf |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8803705-6 Format of ref document f/p: F |
|
NUG | Patent has lapsed |