ZA977712B - Process for the bleaching of pulp. - Google Patents
Process for the bleaching of pulp.Info
- Publication number
- ZA977712B ZA977712B ZA9707712A ZA977712A ZA977712B ZA 977712 B ZA977712 B ZA 977712B ZA 9707712 A ZA9707712 A ZA 9707712A ZA 977712 A ZA977712 A ZA 977712A ZA 977712 B ZA977712 B ZA 977712B
- Authority
- ZA
- South Africa
- Prior art keywords
- bleaching
- pulp
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9600764A BE1010617A3 (en) | 1996-09-11 | 1996-09-11 | Paper pulp bleaching method |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA977712B true ZA977712B (en) | 1998-02-23 |
Family
ID=3889962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA9707712A ZA977712B (en) | 1996-09-11 | 1997-08-27 | Process for the bleaching of pulp. |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE1010617A3 (en) |
ZA (1) | ZA977712B (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69420306T2 (en) * | 1993-04-20 | 2000-04-20 | Eka Chemicals Ab | Process for bleaching lignocellulosic pulp |
SE504826C2 (en) * | 1994-10-07 | 1997-05-12 | Sunds Defibrator Ind Ab | Treatment of chemical pulp with complexing agents in the presence of an oxidizing agent |
EP0858526A1 (en) * | 1995-02-17 | 1998-08-19 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
-
1996
- 1996-09-11 BE BE9600764A patent/BE1010617A3/en not_active IP Right Cessation
-
1997
- 1997-08-27 ZA ZA9707712A patent/ZA977712B/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE1010617A3 (en) | 1998-11-03 |
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