BE656601A - - Google Patents
Info
- Publication number
- BE656601A BE656601A BE656601A BE656601A BE656601A BE 656601 A BE656601 A BE 656601A BE 656601 A BE656601 A BE 656601A BE 656601 A BE656601 A BE 656601A BE 656601 A BE656601 A BE 656601A
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- sodium
- borohydride
- bisulfite
- fibers
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1047—Conserving the bleached pulp
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26342463A | 1963-03-07 | 1963-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE656601A true BE656601A (ja) | 1964-12-31 |
Family
ID=23001721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE656601A BE656601A (ja) | 1963-03-07 | 1964-12-03 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE656601A (ja) |
DE (1) | DE1546249A1 (ja) |
FI (1) | FI43525B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2639371A1 (fr) * | 1988-11-24 | 1990-05-25 | Atochem | Procede de blanchiment de pates desencrees |
-
1964
- 1964-02-27 FI FI0410/64A patent/FI43525B/fi active
- 1964-02-28 DE DE19641546249 patent/DE1546249A1/de active Pending
- 1964-12-03 BE BE656601A patent/BE656601A/fr unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2639371A1 (fr) * | 1988-11-24 | 1990-05-25 | Atochem | Procede de blanchiment de pates desencrees |
EP0374057A2 (fr) * | 1988-11-24 | 1990-06-20 | Elf Atochem S.A. | Procédé de blanchiment de pâtes désencrées |
EP0374057A3 (fr) * | 1988-11-24 | 1991-07-10 | Elf Atochem S.A. | Procédé de blanchiment de pâtes désencrées |
US5449436A (en) * | 1988-11-24 | 1995-09-12 | Atochem | Bleaching of deinked paper/wood pulp |
Also Published As
Publication number | Publication date |
---|---|
FI43525B (ja) | 1970-12-31 |
DE1546249A1 (de) | 1970-03-26 |
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