FR2655668B1 - Procede de blanchiment de pates cellulosiques chimiques. - Google Patents
Procede de blanchiment de pates cellulosiques chimiques.Info
- Publication number
- FR2655668B1 FR2655668B1 FR8916322A FR8916322A FR2655668B1 FR 2655668 B1 FR2655668 B1 FR 2655668B1 FR 8916322 A FR8916322 A FR 8916322A FR 8916322 A FR8916322 A FR 8916322A FR 2655668 B1 FR2655668 B1 FR 2655668B1
- Authority
- FR
- France
- Prior art keywords
- bleaching chemical
- pasta
- pulps
- bleaching
- chemical cellulosic
- 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 - Lifetime
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)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Noodles (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916322A FR2655668B1 (fr) | 1989-12-11 | 1989-12-11 | Procede de blanchiment de pates cellulosiques chimiques. |
DE69011636T DE69011636T2 (de) | 1989-12-11 | 1990-12-06 | Verfahren zum Bleichen von chemischen Zellstoffen. |
DK90403462.6T DK0433138T3 (da) | 1989-12-11 | 1990-12-06 | Fremgangsmåde til blegning af kemiske cellulosefibermasser |
AT90403462T ATE110129T1 (de) | 1989-12-11 | 1990-12-06 | Verfahren zum bleichen von chemischen zellstoffen. |
EP90403462A EP0433138B1 (fr) | 1989-12-11 | 1990-12-06 | Procédé de blanchiment de pâtes cellulosiques chimiques |
ES90403462T ES2062463T3 (es) | 1989-12-11 | 1990-12-06 | Procedimiento de blanqueo de pastas celulosicas quimicas. |
FI906076A FI96784B (fi) | 1989-12-11 | 1990-12-10 | Menetelmä kemiallisten selluloosamassojen valkaisemiseksi valkaistujen absorboivien massojen valmistamiseksi |
NO905333A NO176809C (no) | 1989-12-11 | 1990-12-10 | Fremgangsmåte for bleking av kjemiske cellulosemasser for å oppnå absorberende blekede masser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8916322A FR2655668B1 (fr) | 1989-12-11 | 1989-12-11 | Procede de blanchiment de pates cellulosiques chimiques. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2655668A1 FR2655668A1 (fr) | 1991-06-14 |
FR2655668B1 true FR2655668B1 (fr) | 1995-06-09 |
Family
ID=9388342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8916322A Expired - Lifetime FR2655668B1 (fr) | 1989-12-11 | 1989-12-11 | Procede de blanchiment de pates cellulosiques chimiques. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0433138B1 (fi) |
AT (1) | ATE110129T1 (fi) |
DE (1) | DE69011636T2 (fi) |
DK (1) | DK0433138T3 (fi) |
ES (1) | ES2062463T3 (fi) |
FI (1) | FI96784B (fi) |
FR (1) | FR2655668B1 (fi) |
NO (1) | NO176809C (fi) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2695947B1 (fr) * | 1992-09-18 | 1994-10-21 | Saint Gobain Papier Bois Gie C | Procédé de blanchiment de pâtes cellulosiques chimiques. |
FI925159A0 (fi) * | 1992-11-13 | 1992-11-13 | Ahlstroem Oy | Foerfarande foer blekning av massa |
SE500616C2 (sv) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Blekning av kemisk massa med peroxid vid övertryck |
BE1007700A3 (fr) * | 1993-11-04 | 1995-10-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
FI944348A (fi) * | 1994-09-19 | 1996-03-20 | Ahlstroem Oy | Menetelmä kraft-massan valkaisemiseksi |
SE9402726L (sv) * | 1994-08-16 | 1995-08-28 | Kvaerner Pulping Tech | Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg |
WO1996025552A1 (en) * | 1995-02-17 | 1996-08-22 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
FI105701B (fi) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
CA2239876A1 (en) * | 1995-12-07 | 1997-07-31 | Beloit Technologies, Inc. | Oxygen delignification of medium consistency pulp slurry |
DE102012009593B4 (de) | 2012-05-07 | 2019-03-07 | Innovent E.V. | Verfahren zum Abbau von Polysacchariden ausgewählt aus den Stoffgruppen der Glykosaminoglykane und deren Derivaten sowie der Alginate |
WO2021255335A1 (en) * | 2020-06-16 | 2021-12-23 | Kemira Oyj | Method for pitch control during bleaching |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE448006B (sv) * | 1981-09-21 | 1987-01-12 | Mo Och Domsjoe Ab | Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider |
-
1989
- 1989-12-11 FR FR8916322A patent/FR2655668B1/fr not_active Expired - Lifetime
-
1990
- 1990-12-06 AT AT90403462T patent/ATE110129T1/de not_active IP Right Cessation
- 1990-12-06 DE DE69011636T patent/DE69011636T2/de not_active Expired - Lifetime
- 1990-12-06 ES ES90403462T patent/ES2062463T3/es not_active Expired - Lifetime
- 1990-12-06 EP EP90403462A patent/EP0433138B1/fr not_active Expired - Lifetime
- 1990-12-06 DK DK90403462.6T patent/DK0433138T3/da active
- 1990-12-10 NO NO905333A patent/NO176809C/no not_active IP Right Cessation
- 1990-12-10 FI FI906076A patent/FI96784B/fi active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DK0433138T3 (da) | 1994-12-05 |
NO176809B (no) | 1995-02-20 |
DE69011636T2 (de) | 1995-01-26 |
FR2655668A1 (fr) | 1991-06-14 |
ES2062463T3 (es) | 1994-12-16 |
DE69011636D1 (de) | 1994-09-22 |
EP0433138B1 (fr) | 1994-08-17 |
ATE110129T1 (de) | 1994-09-15 |
NO905333L (no) | 1991-06-12 |
FI906076A (fi) | 1991-06-12 |
FI906076A0 (fi) | 1990-12-10 |
NO905333D0 (no) | 1990-12-10 |
EP0433138A1 (fr) | 1991-06-19 |
NO176809C (no) | 1995-05-31 |
FI96784B (fi) | 1996-05-15 |
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