FI990531A0 - Manufacture of pulp - Google Patents
Manufacture of pulpInfo
- Publication number
- FI990531A0 FI990531A0 FI990531A FI990531A FI990531A0 FI 990531 A0 FI990531 A0 FI 990531A0 FI 990531 A FI990531 A FI 990531A FI 990531 A FI990531 A FI 990531A FI 990531 A0 FI990531 A0 FI 990531A0
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- manufacture
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
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 |
---|---|---|---|
SE9800797 | 1998-03-12 | ||
SE9800797A SE523084E (en) | 1998-03-12 | 1998-03-12 | Ways to continuously produce pulp and to increase the degree of closure in a bleachery |
Publications (3)
Publication Number | Publication Date |
---|---|
FI990531A0 true FI990531A0 (en) | 1999-03-11 |
FI990531A FI990531A (en) | 1999-09-13 |
FI122773B FI122773B (en) | 2012-06-29 |
Family
ID=20410503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI990531A FI122773B (en) | 1998-03-12 | 1999-03-11 | Preparation of pulp |
Country Status (2)
Country | Link |
---|---|
FI (1) | FI122773B (en) |
SE (1) | SE523084E (en) |
-
1998
- 1998-03-12 SE SE9800797A patent/SE523084E/en not_active IP Right Cessation
-
1999
- 1999-03-11 FI FI990531A patent/FI122773B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9800797L (en) | 1999-09-13 |
SE9800797D0 (en) | 1998-03-12 |
SE523084E (en) | 2011-02-15 |
FI990531A (en) | 1999-09-13 |
FI122773B (en) | 2012-06-29 |
SE523084C2 (en) | 2004-03-23 |
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Legal Events
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