SE8700569D0 - An improved peroxide bleaching method - Google Patents
An improved peroxide bleaching methodInfo
- Publication number
- SE8700569D0 SE8700569D0 SE8700569A SE8700569A SE8700569D0 SE 8700569 D0 SE8700569 D0 SE 8700569D0 SE 8700569 A SE8700569 A SE 8700569A SE 8700569 A SE8700569 A SE 8700569A SE 8700569 D0 SE8700569 D0 SE 8700569D0
- Authority
- SE
- Sweden
- Prior art keywords
- acid
- pulp
- peroxide bleaching
- bleaching method
- suspension
- 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
- D21C9/16—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)
- Detergent Compositions (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8700569A SE8700569D0 (sv) | 1987-02-12 | 1987-02-12 | An improved peroxide bleaching method |
DE8888901957T DE3876429T2 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren. |
AT88901957T ATE83016T1 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren. |
PCT/SE1988/000055 WO1988006202A1 (en) | 1987-02-12 | 1988-02-12 | An improved peroxide bleaching method |
EP88901957A EP0348411B1 (en) | 1987-02-12 | 1988-02-12 | An improved peroxide bleaching method |
FI893742A FI91545C (sv) | 1987-02-12 | 1989-08-08 | Förbättrat peroxidblekningsförfarande |
CA000612006A CA1333650C (en) | 1987-02-12 | 1989-09-19 | Peroxide bleaching method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8700569A SE8700569D0 (sv) | 1987-02-12 | 1987-02-12 | An improved peroxide bleaching method |
CA000612006A CA1333650C (en) | 1987-02-12 | 1989-09-19 | Peroxide bleaching method |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8700569D0 true SE8700569D0 (sv) | 1987-02-12 |
Family
ID=25673050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8700569A SE8700569D0 (sv) | 1987-02-12 | 1987-02-12 | An improved peroxide bleaching method |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0348411B1 (sv) |
AT (1) | ATE83016T1 (sv) |
CA (1) | CA1333650C (sv) |
DE (1) | DE3876429T2 (sv) |
FI (1) | FI91545C (sv) |
SE (1) | SE8700569D0 (sv) |
WO (1) | WO1988006202A1 (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE505980C2 (sv) * | 1993-12-23 | 1997-10-27 | Bim Kemi Ab | Sätt att förhindra peroxidnedbrytande enzymer vid blekning med väteperoxid |
DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
FI115470B (sv) * | 1996-02-19 | 2005-05-13 | Kemira Oyj | Förfarande för behandling av kemiskt cellulosamaterial |
FI115641B (sv) * | 1996-02-19 | 2005-06-15 | Kemira Oyj | Blekningsprocess för högutbytesmassor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO109292C (sv) * | 1962-07-16 | |||
DE2219505C3 (de) * | 1972-04-21 | 1974-10-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorfreie Mehrstufenbleiche von Zellstoff |
-
1987
- 1987-02-12 SE SE8700569A patent/SE8700569D0/sv unknown
-
1988
- 1988-02-12 DE DE8888901957T patent/DE3876429T2/de not_active Expired - Fee Related
- 1988-02-12 WO PCT/SE1988/000055 patent/WO1988006202A1/en active IP Right Grant
- 1988-02-12 EP EP88901957A patent/EP0348411B1/en not_active Expired
- 1988-02-12 AT AT88901957T patent/ATE83016T1/de not_active IP Right Cessation
-
1989
- 1989-08-08 FI FI893742A patent/FI91545C/sv not_active IP Right Cessation
- 1989-09-19 CA CA000612006A patent/CA1333650C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE83016T1 (de) | 1992-12-15 |
EP0348411A1 (en) | 1990-01-03 |
FI91545B (sv) | 1994-03-31 |
DE3876429T2 (de) | 1993-07-01 |
WO1988006202A1 (en) | 1988-08-25 |
CA1333650C (en) | 1994-12-27 |
DE3876429D1 (de) | 1993-01-14 |
FI91545C (sv) | 1994-07-11 |
FI893742A0 (sv) | 1989-08-08 |
EP0348411B1 (en) | 1992-12-02 |
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