FI972881A - pulping - Google Patents
pulping Download PDFInfo
- Publication number
- FI972881A FI972881A FI972881A FI972881A FI972881A FI 972881 A FI972881 A FI 972881A FI 972881 A FI972881 A FI 972881A FI 972881 A FI972881 A FI 972881A FI 972881 A FI972881 A FI 972881A
- Authority
- FI
- Finland
- Prior art keywords
- pulping
- 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
- D21C9/12—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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67670496A | 1996-07-08 | 1996-07-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI972881A0 FI972881A0 (en) | 1997-07-07 |
FI972881A true FI972881A (en) | 1998-01-09 |
Family
ID=24715635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI972881A FI972881A (en) | 1996-07-08 | 1997-07-07 | pulping |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPH10121393A (en) |
CA (1) | CA2189724A1 (en) |
DE (1) | DE19729155A1 (en) |
FI (1) | FI972881A (en) |
SE (1) | SE9702583L (en) |
Families Citing this family (6)
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 (en) * | 2006-07-28 | 2012-05-30 | ハイモ株式会社 | Paper making method |
GB0721587D0 (en) * | 2007-11-02 | 2007-12-12 | Innospec Ltd | Process for bleaching pulp |
BR102014016692A2 (en) * | 2014-07-04 | 2016-03-29 | Univ Estadual Paulista Julio D | pulp bleaching process and pulp production |
FR3062138B1 (en) * | 2017-01-23 | 2019-06-07 | Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses | PROCESS FOR WHITENING A PAPER PULP |
-
1996
- 1996-11-06 CA CA002189724A patent/CA2189724A1/en not_active Abandoned
-
1997
- 1997-07-04 SE SE9702583A patent/SE9702583L/en not_active Application Discontinuation
- 1997-07-07 FI FI972881A patent/FI972881A/en unknown
- 1997-07-08 JP JP18286397A patent/JPH10121393A/en active Pending
- 1997-07-08 DE DE1997129155 patent/DE19729155A1/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
SE9702583D0 (en) | 1997-07-04 |
DE19729155A1 (en) | 1998-01-15 |
CA2189724A1 (en) | 1998-01-09 |
JPH10121393A (en) | 1998-05-12 |
FI972881A0 (en) | 1997-07-07 |
SE9702583L (en) | 1998-01-09 |
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