SE8704041D0 - Sett vid blekning av cellulosamassa - Google Patents
Sett vid blekning av cellulosamassaInfo
- Publication number
- SE8704041D0 SE8704041D0 SE8704041A SE8704041A SE8704041D0 SE 8704041 D0 SE8704041 D0 SE 8704041D0 SE 8704041 A SE8704041 A SE 8704041A SE 8704041 A SE8704041 A SE 8704041A SE 8704041 D0 SE8704041 D0 SE 8704041D0
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- cellulosamassa
- white
- view
- sulphide
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704041A SE8704041L (sv) | 1987-10-16 | 1987-10-16 | Saett vid blekning av cellulosamassa |
PCT/SE1988/000418 WO1989003451A1 (en) | 1987-10-16 | 1988-08-17 | Method at bleaching cellulose pulp |
AU24804/88A AU2480488A (en) | 1987-10-16 | 1988-08-17 | Method at bleaching cellulose pulp |
FR8813166A FR2621934A1 (fr) | 1987-10-16 | 1988-10-07 | Procede de blanchissement de pate de cellulose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704041A SE8704041L (sv) | 1987-10-16 | 1987-10-16 | Saett vid blekning av cellulosamassa |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8704041D0 true SE8704041D0 (sv) | 1987-10-16 |
SE8704041L SE8704041L (sv) | 1989-04-17 |
Family
ID=20369912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8704041A SE8704041L (sv) | 1987-10-16 | 1987-10-16 | Saett vid blekning av cellulosamassa |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2480488A (sv) |
FR (1) | FR2621934A1 (sv) |
SE (1) | SE8704041L (sv) |
WO (1) | WO1989003451A1 (sv) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1074111A (en) * | 1964-04-02 | 1967-06-28 | Electric Reduction Co | Processes useful in the manufacture of bleached pulp |
FI43947C (fi) * | 1965-01-25 | 1971-07-12 | Electric Reduction Co | Valkaistun selluloosan valmistusmenetelmä |
US3716448A (en) * | 1970-05-25 | 1973-02-13 | Int Paper Co | Single stage delignification and bleaching of chemical pulp with oxygen in the presence of a protector |
US3798119A (en) * | 1972-04-24 | 1974-03-19 | Scott Paper Co | Process for bleaching kraft pulp with oxygen in the presence of white liquor from a kraft recovery system |
SE452483B (sv) * | 1985-02-01 | 1987-11-30 | Aga Ab | Forfarande for delignifiering av sulfatmassa |
US4675076A (en) * | 1986-10-01 | 1987-06-23 | Ppg Industries, Inc. | Method for brightening pulp |
-
1987
- 1987-10-16 SE SE8704041A patent/SE8704041L/sv unknown
-
1988
- 1988-08-17 AU AU24804/88A patent/AU2480488A/en not_active Abandoned
- 1988-08-17 WO PCT/SE1988/000418 patent/WO1989003451A1/en unknown
- 1988-10-07 FR FR8813166A patent/FR2621934A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2621934A1 (fr) | 1989-04-21 |
WO1989003451A1 (en) | 1989-04-20 |
AU2480488A (en) | 1989-05-02 |
SE8704041L (sv) | 1989-04-17 |
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