SE9302527L - Sätt vid flerstegsblekning - Google Patents
Sätt vid flerstegsblekningInfo
- Publication number
- SE9302527L SE9302527L SE9302527A SE9302527A SE9302527L SE 9302527 L SE9302527 L SE 9302527L SE 9302527 A SE9302527 A SE 9302527A SE 9302527 A SE9302527 A SE 9302527A SE 9302527 L SE9302527 L SE 9302527L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- magnesium ions
- treatment
- complex
- added
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302527A SE512673C2 (sv) | 1993-07-29 | 1993-07-29 | Förfarande för flerstegsblekning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9302527A SE512673C2 (sv) | 1993-07-29 | 1993-07-29 | Förfarande för flerstegsblekning |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9302527D0 SE9302527D0 (sv) | 1993-07-29 |
SE9302527L true SE9302527L (sv) | 1995-01-30 |
SE512673C2 SE512673C2 (sv) | 2000-04-17 |
Family
ID=20390703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9302527A SE512673C2 (sv) | 1993-07-29 | 1993-07-29 | Förfarande för flerstegsblekning |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE512673C2 (sv) |
-
1993
- 1993-07-29 SE SE9302527A patent/SE512673C2/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9302527D0 (sv) | 1993-07-29 |
SE512673C2 (sv) | 2000-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |