CA1333650C - Methode de blanchiment au peroxyde - Google Patents
Methode de blanchiment au peroxydeInfo
- Publication number
- CA1333650C CA1333650C CA000612006A CA612006A CA1333650C CA 1333650 C CA1333650 C CA 1333650C CA 000612006 A CA000612006 A CA 000612006A CA 612006 A CA612006 A CA 612006A CA 1333650 C CA1333650 C CA 1333650C
- Authority
- CA
- Canada
- Prior art keywords
- acid
- pulp
- bleaching
- suspension
- peroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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 |
PCT/SE1988/000055 WO1988006202A1 (fr) | 1987-02-12 | 1988-02-12 | Methode amelioree de decoloration au peroxyde |
EP88901957A EP0348411B1 (fr) | 1987-02-12 | 1988-02-12 | Methode amelioree de decoloration au peroxyde |
AT88901957T ATE83016T1 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren. |
DE8888901957T DE3876429T2 (de) | 1987-02-12 | 1988-02-12 | Peroxid-bleichverfahren. |
FI893742A FI91545C (fi) | 1987-02-12 | 1989-08-08 | Parannettu peroksidivalkaisumenetelmä |
CA000612006A CA1333650C (fr) | 1987-02-12 | 1989-09-19 | Methode de blanchiment au peroxyde |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8700569A SE8700569D0 (sv) | 1987-02-12 | 1987-02-12 | An improved peroxide bleaching method |
PCT/SE1988/000055 WO1988006202A1 (fr) | 1987-02-12 | 1988-02-12 | Methode amelioree de decoloration au peroxyde |
CA000612006A CA1333650C (fr) | 1987-02-12 | 1989-09-19 | Methode de blanchiment au peroxyde |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1333650C true CA1333650C (fr) | 1994-12-27 |
Family
ID=25673050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000612006A Expired - Fee Related CA1333650C (fr) | 1987-02-12 | 1989-09-19 | Methode de blanchiment au peroxyde |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0348411B1 (fr) |
AT (1) | ATE83016T1 (fr) |
CA (1) | CA1333650C (fr) |
DE (1) | DE3876429T2 (fr) |
FI (1) | FI91545C (fr) |
SE (1) | SE8700569D0 (fr) |
WO (1) | WO1988006202A1 (fr) |
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 (fi) * | 1996-02-19 | 2005-05-13 | Kemira Oyj | Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi |
FI115641B (fi) * | 1996-02-19 | 2005-06-15 | Kemira Oyj | Korkeasaantomassojen valkaisumenetelmä |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE633420A (fr) * | 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/xx unknown
-
1988
- 1988-02-12 EP EP88901957A patent/EP0348411B1/fr not_active Expired
- 1988-02-12 WO PCT/SE1988/000055 patent/WO1988006202A1/fr active IP Right Grant
- 1988-02-12 AT AT88901957T patent/ATE83016T1/de not_active IP Right Cessation
- 1988-02-12 DE DE8888901957T patent/DE3876429T2/de not_active Expired - Fee Related
-
1989
- 1989-08-08 FI FI893742A patent/FI91545C/fi not_active IP Right Cessation
- 1989-09-19 CA CA000612006A patent/CA1333650C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1988006202A1 (fr) | 1988-08-25 |
DE3876429T2 (de) | 1993-07-01 |
SE8700569D0 (sv) | 1987-02-12 |
FI893742A0 (fi) | 1989-08-08 |
FI91545B (fi) | 1994-03-31 |
ATE83016T1 (de) | 1992-12-15 |
DE3876429D1 (de) | 1993-01-14 |
EP0348411B1 (fr) | 1992-12-02 |
EP0348411A1 (fr) | 1990-01-03 |
FI91545C (fi) | 1994-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |