CA1337843C - Process for oxygen bleaching - Google Patents
Process for oxygen bleachingInfo
- Publication number
- CA1337843C CA1337843C CA000614212A CA614212A CA1337843C CA 1337843 C CA1337843 C CA 1337843C CA 000614212 A CA000614212 A CA 000614212A CA 614212 A CA614212 A CA 614212A CA 1337843 C CA1337843 C CA 1337843C
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- delignification
- vertical reactor
- mixer
- delignification zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8803705-6 | 1988-10-18 | ||
SE8803705A SE467582B (sv) | 1988-10-18 | 1988-10-18 | Saett vid oxygenblekning |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1337843C true CA1337843C (en) | 1996-01-02 |
Family
ID=20373661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000614212A Expired - Lifetime CA1337843C (en) | 1988-10-18 | 1989-09-28 | Process for oxygen bleaching |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH02145883A (sv) |
CA (1) | CA1337843C (sv) |
FI (1) | FI91896C (sv) |
SE (1) | SE467582B (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2479619C2 (ru) * | 2009-11-17 | 2013-04-20 | Феликс Фердинандович Аухадеев | Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы |
Families Citing this family (2)
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 |
-
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 JP JP1269259A patent/JPH02145883A/ja active Pending
- 1989-10-18 FI FI894949A patent/FI91896C/sv active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2479619C2 (ru) * | 2009-11-17 | 2013-04-20 | Феликс Фердинандович Аухадеев | Пульсационное устройство для делигнификации целлюлозосодержащего растительного сырья и способ его работы |
Also Published As
Publication number | Publication date |
---|---|
SE8803705D0 (sv) | 1988-10-18 |
SE8803705L (sv) | 1990-04-19 |
JPH02145883A (ja) | 1990-06-05 |
FI91896C (sv) | 1994-08-25 |
FI894949A0 (sv) | 1989-10-18 |
SE467582B (sv) | 1992-08-10 |
FI91896B (sv) | 1994-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20130102 |