FI894949A0 - Method for oxygen bleaching - Google Patents
Method for oxygen bleachingInfo
- Publication number
- FI894949A0 FI894949A0 FI894949A FI894949A FI894949A0 FI 894949 A0 FI894949 A0 FI 894949A0 FI 894949 A FI894949 A FI 894949A FI 894949 A FI894949 A FI 894949A FI 894949 A0 FI894949 A0 FI 894949A0
- Authority
- FI
- Finland
- Prior art keywords
- oxygen bleaching
- bleaching
- oxygen
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8803705 | 1988-10-18 | ||
SE8803705A SE467582B (en) | 1988-10-18 | 1988-10-18 | OXYGEN WHITING |
Publications (3)
Publication Number | Publication Date |
---|---|
FI894949A0 true FI894949A0 (en) | 1989-10-18 |
FI91896B FI91896B (en) | 1994-05-13 |
FI91896C FI91896C (en) | 1994-08-25 |
Family
ID=20373661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI894949A FI91896C (en) | 1988-10-18 | 1989-10-18 | Method of oxygen bleaching |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH02145883A (en) |
CA (1) | CA1337843C (en) |
FI (1) | FI91896C (en) |
SE (1) | SE467582B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE510740C2 (en) * | 1996-11-26 | 1999-06-21 | Sunds Defibrator Ind Ab | Oxygen delignification control |
SE522593C2 (en) * | 1999-07-06 | 2004-02-24 | Kvaerner Pulping Tech | Oxygen gas delignification system and method of pulp of lignocellulosic material |
RU2479619C2 (en) * | 2009-11-17 | 2013-04-20 | Феликс Фердинандович Аухадеев | Pulsation apparatus for delignification of cellulose-containing plant material and method for operation thereof |
-
1988
- 1988-10-18 SE SE8803705A patent/SE467582B/en 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/en active IP Right Grant
- 1989-10-18 JP JP1269259A patent/JPH02145883A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE8803705D0 (en) | 1988-10-18 |
SE8803705L (en) | 1990-04-19 |
JPH02145883A (en) | 1990-06-05 |
SE467582B (en) | 1992-08-10 |
FI91896C (en) | 1994-08-25 |
FI91896B (en) | 1994-05-13 |
CA1337843C (en) | 1996-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
FG | Patent granted |
Owner name: KAMYR AKTIEBOLAG |
|
PC | Transfer of assignment of patent |
Owner name: METSO FIBER KARLSTAD AB Free format text: METSO FIBER KARLSTAD AB |