ZA991898B - Process for the bleaching of paper pulp. - Google Patents
Process for the bleaching of paper pulp.Info
- Publication number
- ZA991898B ZA991898B ZA9901898A ZA991898A ZA991898B ZA 991898 B ZA991898 B ZA 991898B ZA 9901898 A ZA9901898 A ZA 9901898A ZA 991898 A ZA991898 A ZA 991898A ZA 991898 B ZA991898 B ZA 991898B
- Authority
- ZA
- South Africa
- Prior art keywords
- bleaching
- paper pulp
- pulp
- paper
- 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
- D21C9/1005—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 |
---|---|---|---|
BE9800189A BE1011784A3 (en) | 1998-03-10 | 1998-03-10 | Bleaching pulp process. |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA991898B true ZA991898B (en) | 2000-10-11 |
Family
ID=3891147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA9901898A ZA991898B (en) | 1998-03-10 | 1999-03-09 | Process for the bleaching of paper pulp. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1062388A1 (en) |
AU (1) | AU3411199A (en) |
BE (1) | BE1011784A3 (en) |
WO (1) | WO1999046440A1 (en) |
ZA (1) | ZA991898B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2728278C (en) | 2008-06-20 | 2016-06-28 | Zheng Tan | Composition and recording sheet with improved optical properties |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE184060T1 (en) * | 1993-04-20 | 1999-09-15 | Eka Chemicals Ab | METHOD FOR BLEACHING PULP CONTAINING LIGNOCELLULOSE |
EP0858526A1 (en) * | 1995-02-17 | 1998-08-19 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
FI115469B (en) * | 1996-02-19 | 2005-05-13 | Kemira Oyj | Process for the treatment of chemical cellulose material |
DE19630278A1 (en) * | 1996-07-26 | 1998-01-29 | Basf Ag | Complexing agent for pulp and pulp bleaching, paper production and deinking of waste paper |
-
1998
- 1998-03-10 BE BE9800189A patent/BE1011784A3/en not_active IP Right Cessation
-
1999
- 1999-03-06 AU AU34111/99A patent/AU3411199A/en not_active Abandoned
- 1999-03-06 EP EP99915578A patent/EP1062388A1/en not_active Withdrawn
- 1999-03-06 WO PCT/EP1999/001611 patent/WO1999046440A1/en not_active Application Discontinuation
- 1999-03-09 ZA ZA9901898A patent/ZA991898B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU3411199A (en) | 1999-09-27 |
WO1999046440A1 (en) | 1999-09-16 |
BE1011784A3 (en) | 2000-01-11 |
EP1062388A1 (en) | 2000-12-27 |
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