SE8800673D0 - PROCEDURE FOR WHITING PAPER Pulp - Google Patents
PROCEDURE FOR WHITING PAPER PulpInfo
- Publication number
- SE8800673D0 SE8800673D0 SE8800673A SE8800673A SE8800673D0 SE 8800673 D0 SE8800673 D0 SE 8800673D0 SE 8800673 A SE8800673 A SE 8800673A SE 8800673 A SE8800673 A SE 8800673A SE 8800673 D0 SE8800673 D0 SE 8800673D0
- Authority
- SE
- Sweden
- Prior art keywords
- partic
- whiting
- procedure
- paper pulp
- peroxide
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 abstract 2
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 2
- 229930195729 fatty acid Natural products 0.000 abstract 2
- 239000000194 fatty acid Substances 0.000 abstract 2
- 150000004665 fatty acids Chemical class 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 150000002978 peroxides Chemical class 0.000 abstract 2
- 102000004190 Enzymes Human genes 0.000 abstract 1
- 108090000790 Enzymes Proteins 0.000 abstract 1
- 102000003992 Peroxidases Human genes 0.000 abstract 1
- 108010062085 ligninase Proteins 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 108040007629 peroxidase activity proteins Proteins 0.000 abstract 1
- 150000004032 porphyrins Chemical group 0.000 abstract 1
- 238000004076 pulp bleaching Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- D21C9/1026—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
- D21C9/16—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)
Abstract
A new method of pulp bleaching in which a low molecular weight catalyst, which mimics the action of ligninase, is used in conjunction with peroxide, an organic solvent and a fatty acid or its salt. Pref. the catalyst is partic. an enzyme of peroxidase type, and may have a porphyrin structure and is partic. a heamoprotein e.g. haemoglobin. The peroxide is added at up to 1% on pulp weight. The fatty acid is partic. halogenated. The organic solvent is present at 0-99% of water quant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8800673A SE8800673L (en) | 1988-02-26 | 1988-02-26 | Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8800673A SE8800673L (en) | 1988-02-26 | 1988-02-26 | Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8800673D0 true SE8800673D0 (en) | 1988-02-26 |
SE8800673L SE8800673L (en) | 1989-08-27 |
Family
ID=20371503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8800673A SE8800673L (en) | 1988-02-26 | 1988-02-26 | Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE8800673L (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0705327B1 (en) * | 1993-06-16 | 2000-04-19 | CALL, Hans-Peter Dr. | Multicomponent bleaching system |
-
1988
- 1988-02-26 SE SE8800673A patent/SE8800673L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE8800673L (en) | 1989-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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