AU5439594A - A method in delignifying and/or bleaching of cellulose pulp - Google Patents
A method in delignifying and/or bleaching of cellulose pulpInfo
- Publication number
- AU5439594A AU5439594A AU54395/94A AU5439594A AU5439594A AU 5439594 A AU5439594 A AU 5439594A AU 54395/94 A AU54395/94 A AU 54395/94A AU 5439594 A AU5439594 A AU 5439594A AU 5439594 A AU5439594 A AU 5439594A
- Authority
- AU
- Australia
- Prior art keywords
- delignifying
- bleaching
- cellulose pulp
- pulp
- cellulose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203366A SE9203366L (en) | 1992-11-11 | 1992-11-11 | Process for delignification and / or bleaching of cellulose pulp |
SE9203366 | 1992-11-11 | ||
PCT/SE1993/000953 WO1994011569A1 (en) | 1992-11-11 | 1993-11-10 | A method in delignifying and/or bleaching of cellulose pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
AU5439594A true AU5439594A (en) | 1994-06-08 |
Family
ID=20387773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU54395/94A Abandoned AU5439594A (en) | 1992-11-11 | 1993-11-10 | A method in delignifying and/or bleaching of cellulose pulp |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU5439594A (en) |
SE (1) | SE9203366L (en) |
WO (1) | WO1994011569A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE500616C2 (en) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Bleaching of chemical pulp with peroxide at overpressure |
EP1375734A1 (en) * | 2002-06-17 | 2004-01-02 | SCA Hygiene Products GmbH | Bleached, strong sulfite chemical pulp, a process for the production thereof and products derived therefrom |
US20120061043A1 (en) * | 2009-05-29 | 2012-03-15 | Solvay Sa | Process for the bleaching of mechanical paper pulp |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2841013C2 (en) * | 1978-09-21 | 1984-06-07 | Degussa Ag, 6000 Frankfurt | Process for full bleaching of pulp |
DE69004492T3 (en) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Process for bleaching pulps containing lignocellulose. |
SE470065C (en) * | 1991-04-30 | 1996-01-15 | Eka Nobel Ab | Treatment of chemical pulp with an acid and then a magnesium and calcium compound in chlorine-free bleaching |
-
1992
- 1992-11-11 SE SE9203366A patent/SE9203366L/en not_active Application Discontinuation
-
1993
- 1993-11-10 WO PCT/SE1993/000953 patent/WO1994011569A1/en active Application Filing
- 1993-11-10 AU AU54395/94A patent/AU5439594A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
SE9203366L (en) | 1994-05-12 |
SE9203366D0 (en) | 1992-11-11 |
WO1994011569A1 (en) | 1994-05-26 |
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