NO913848L - Fremgangsmaate for klorfattig bleking og delignifisering av cellulose - Google Patents
Fremgangsmaate for klorfattig bleking og delignifisering av celluloseInfo
- Publication number
- NO913848L NO913848L NO91913848A NO913848A NO913848L NO 913848 L NO913848 L NO 913848L NO 91913848 A NO91913848 A NO 91913848A NO 913848 A NO913848 A NO 913848A NO 913848 L NO913848 L NO 913848L
- Authority
- NO
- Norway
- Prior art keywords
- delignification
- chlorine
- cellulose
- procedure
- pulp
- 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
- D21C9/1026—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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- General Preparation And Processing Of Foods (AREA)
- Cereal-Derived Products (AREA)
- Jellies, Jams, And Syrups (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4031597A DE4031597A1 (de) | 1990-10-05 | 1990-10-05 | Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
NO913848D0 NO913848D0 (no) | 1991-10-01 |
NO913848L true NO913848L (no) | 1992-04-06 |
Family
ID=6415688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO91913848A NO913848L (no) | 1990-10-05 | 1991-10-01 | Fremgangsmaate for klorfattig bleking og delignifisering av cellulose |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0479319B1 (no) |
AT (1) | ATE120815T1 (no) |
CA (1) | CA2052758A1 (no) |
DE (2) | DE4031597A1 (no) |
ES (1) | ES2070388T3 (no) |
FI (1) | FI914694A (no) |
NO (1) | NO913848L (no) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009045628A1 (de) | 2009-10-13 | 2011-04-14 | Henkel Ag & Co. Kgaa | Bleichaktivatoren für Verfahren zum Bleichen von cellulosischen Faserstoffen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE664257C (de) * | 1929-09-11 | 1938-08-25 | Degussa | Verfahren zum Veredeln von Zellstoffen |
AT167849B (de) * | 1945-01-10 | 1951-03-10 | Buffalo Electro Chem Co | Verfahren zum Bleichen von Holzschliff |
AT183646B (de) * | 1950-06-30 | 1955-10-25 | Buffalo Electro Chem Co | Verfahren zum Bleichen von Sulfat- oder Sulfitzellstoff |
DE2742262C2 (de) * | 1977-09-20 | 1982-06-09 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs |
US4568420B1 (en) * | 1984-12-03 | 1999-03-02 | Int Paper Co | Multi-stage bleaching process including an enhanced oxidative extraction stage |
FR2589494B1 (fr) * | 1985-10-30 | 1988-07-29 | Atochem | Procede de blanchiment de pates papetieres chimiques |
DE3544398A1 (de) * | 1985-12-16 | 1987-06-19 | Sueddeutsche Kalkstickstoff | Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten |
DE4004364A1 (de) * | 1990-02-13 | 1991-08-14 | Sueddeutsche Kalkstickstoff | Verfahren zur chlorfreien bleiche und delignifizierung von zellstoff |
-
1990
- 1990-10-05 DE DE4031597A patent/DE4031597A1/de not_active Withdrawn
-
1991
- 1991-10-01 NO NO91913848A patent/NO913848L/no unknown
- 1991-10-03 CA CA002052758A patent/CA2052758A1/en not_active Abandoned
- 1991-10-04 AT AT91116992T patent/ATE120815T1/de not_active IP Right Cessation
- 1991-10-04 ES ES91116992T patent/ES2070388T3/es not_active Expired - Lifetime
- 1991-10-04 DE DE59105105T patent/DE59105105D1/de not_active Expired - Fee Related
- 1991-10-04 FI FI914694A patent/FI914694A/fi not_active Application Discontinuation
- 1991-10-04 EP EP91116992A patent/EP0479319B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NO913848D0 (no) | 1991-10-01 |
FI914694A0 (fi) | 1991-10-04 |
DE4031597A1 (de) | 1992-04-09 |
EP0479319A1 (de) | 1992-04-08 |
ATE120815T1 (de) | 1995-04-15 |
CA2052758A1 (en) | 1992-04-06 |
ES2070388T3 (es) | 1995-06-01 |
DE59105105D1 (de) | 1995-05-11 |
FI914694A (fi) | 1992-04-06 |
EP0479319B1 (de) | 1995-04-05 |
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