CA2189724A1 - Methode de reduction en pate - Google Patents
Methode de reduction en pateInfo
- Publication number
- CA2189724A1 CA2189724A1 CA002189724A CA2189724A CA2189724A1 CA 2189724 A1 CA2189724 A1 CA 2189724A1 CA 002189724 A CA002189724 A CA 002189724A CA 2189724 A CA2189724 A CA 2189724A CA 2189724 A1 CA2189724 A1 CA 2189724A1
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- bleaching
- peroxide
- stage
- ecf
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
-
- 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67670496A | 1996-07-08 | 1996-07-08 | |
US08/676,704 | 1996-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2189724A1 true CA2189724A1 (fr) | 1998-01-09 |
Family
ID=24715635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002189724A Abandoned CA2189724A1 (fr) | 1996-07-08 | 1996-11-06 | Methode de reduction en pate |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPH10121393A (fr) |
CA (1) | CA2189724A1 (fr) |
DE (1) | DE19729155A1 (fr) |
FI (1) | FI972881A (fr) |
SE (1) | SE9702583L (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016000056A1 (fr) * | 2014-07-04 | 2016-01-07 | Universidade Estadual Paulista "Júlio De Mesquita Filho" - Unesp | Procédé de blanchiment de cellulose et de production de dérivés de cellulose |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7351764B2 (en) * | 2004-03-31 | 2008-04-01 | Nalco Company | Methods to enhance brightness of pulp and optimize use of bleaching chemicals |
US20070131364A1 (en) * | 2005-12-14 | 2007-06-14 | University Of Maine | Process for treating a cellulose-lignin pulp |
JP4942415B2 (ja) * | 2006-07-28 | 2012-05-30 | ハイモ株式会社 | 抄紙方法 |
GB0721587D0 (en) * | 2007-11-02 | 2007-12-12 | Innospec Ltd | Process for bleaching pulp |
FR3062138B1 (fr) * | 2017-01-23 | 2019-06-07 | Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses | Procede de blanchiment d'une pate a papier |
-
1996
- 1996-11-06 CA CA002189724A patent/CA2189724A1/fr not_active Abandoned
-
1997
- 1997-07-04 SE SE9702583A patent/SE9702583L/ not_active Application Discontinuation
- 1997-07-07 FI FI972881A patent/FI972881A/fi unknown
- 1997-07-08 JP JP18286397A patent/JPH10121393A/ja active Pending
- 1997-07-08 DE DE1997129155 patent/DE19729155A1/de not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016000056A1 (fr) * | 2014-07-04 | 2016-01-07 | Universidade Estadual Paulista "Júlio De Mesquita Filho" - Unesp | Procédé de blanchiment de cellulose et de production de dérivés de cellulose |
Also Published As
Publication number | Publication date |
---|---|
SE9702583D0 (sv) | 1997-07-04 |
FI972881A0 (fi) | 1997-07-07 |
FI972881A (fi) | 1998-01-09 |
SE9702583L (sv) | 1998-01-09 |
DE19729155A1 (de) | 1998-01-15 |
JPH10121393A (ja) | 1998-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |