FR2416297A1 - Procede anti-polluant de blanchiment de pate a papier - Google Patents
Procede anti-polluant de blanchiment de pate a papierInfo
- Publication number
- FR2416297A1 FR2416297A1 FR7802694A FR7802694A FR2416297A1 FR 2416297 A1 FR2416297 A1 FR 2416297A1 FR 7802694 A FR7802694 A FR 7802694A FR 7802694 A FR7802694 A FR 7802694A FR 2416297 A1 FR2416297 A1 FR 2416297A1
- Authority
- FR
- France
- Prior art keywords
- chlorine
- hypochlorite
- paper pulp
- treating
- oxide
- 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.)
- Granted
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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
-
- 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)
Abstract
Procédé anti-polluant de blanchiment de pâte à papiers préoxydés. Selon ce procédé, la pâte préoxydée est traitée en trois phases : une première phase de chloration par injection de chlore suivie d'un apport de bioxyde de chlore, une deuxième phase oxydante en milieu alcalin et une troisième phase au bioxyde de chlore.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7802694A FR2416297A1 (fr) | 1978-01-31 | 1978-01-31 | Procede anti-polluant de blanchiment de pate a papier |
DE19792903014 DE2903014A1 (de) | 1978-01-31 | 1979-01-26 | Anti-schadstoff-bleichverfahren fuer papierzellstoff |
BE0/193124A BE873765A (fr) | 1978-01-31 | 1979-01-29 | Procede antipolluant de blanchissement de pate a papier |
BR7900561A BR7900561A (pt) | 1978-01-31 | 1979-01-30 | Processo anti-poluinte de alvejamento para pasta de papel |
OA56722A OA06169A (fr) | 1978-01-31 | 1979-01-30 | Procédé anti-polluant de blanchiment de la pâte à papier. |
SE7900793A SE7900793L (sv) | 1978-01-31 | 1979-01-30 | Sett att bleka pappersmassa |
JP884579A JPS54116404A (en) | 1978-01-31 | 1979-01-30 | Process for bleaching wood pulp without generating public nuisance |
ZA79388A ZA79388B (en) | 1978-01-31 | 1979-01-30 | An anti-pollution process for bleaching wood pulp |
FI790318A FI790318A (fi) | 1978-01-31 | 1979-01-31 | Blekningsfoerfarande foer pappersmassa |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7802694A FR2416297A1 (fr) | 1978-01-31 | 1978-01-31 | Procede anti-polluant de blanchiment de pate a papier |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2416297A1 true FR2416297A1 (fr) | 1979-08-31 |
FR2416297B1 FR2416297B1 (fr) | 1983-01-07 |
Family
ID=9204036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7802694A Granted FR2416297A1 (fr) | 1978-01-31 | 1978-01-31 | Procede anti-polluant de blanchiment de pate a papier |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS54116404A (fr) |
BE (1) | BE873765A (fr) |
BR (1) | BR7900561A (fr) |
DE (1) | DE2903014A1 (fr) |
FI (1) | FI790318A (fr) |
FR (1) | FR2416297A1 (fr) |
OA (1) | OA06169A (fr) |
SE (1) | SE7900793L (fr) |
ZA (1) | ZA79388B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401149A1 (fr) * | 1989-05-19 | 1990-12-05 | Fmc Corporation | Délignification à l'oxygène renforcée au peroxide d'hydrogène |
WO1992021813A1 (fr) * | 1991-06-07 | 1992-12-10 | Ici Canada Inc. | Procede de blanchiment biologique |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9000340L (sv) * | 1990-01-31 | 1991-08-01 | Eka Nobel Ab | Foerfarande vid blekning av lignocellulosahaltigt material |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2100496A (en) * | 1936-02-18 | 1937-11-30 | Mathieson Alkali Works Inc | Bleaching of cellulosic materials |
US2120678A (en) * | 1936-03-30 | 1938-06-14 | Hammermill Paper Co | Bleaching and purifying process |
US2494542A (en) * | 1946-05-02 | 1950-01-17 | Niagara Alkali Company | Method of bleaching pulp |
DE1959118A1 (de) * | 1968-12-05 | 1970-06-11 | Mo Och Domsjoe Ab | Verfahren zur Herstellung gebleichter Cellulosepulpe |
FR2071947A1 (fr) * | 1969-12-19 | 1971-09-24 | Canadian Ind | |
FR2322235A1 (fr) * | 1975-08-30 | 1977-03-25 | Degussa | Attaque blanchissante de la cellulose avec reduction importante de la quantite de chlore utilisee |
-
1978
- 1978-01-31 FR FR7802694A patent/FR2416297A1/fr active Granted
-
1979
- 1979-01-26 DE DE19792903014 patent/DE2903014A1/de not_active Withdrawn
- 1979-01-29 BE BE0/193124A patent/BE873765A/fr not_active IP Right Cessation
- 1979-01-30 OA OA56722A patent/OA06169A/fr unknown
- 1979-01-30 ZA ZA79388A patent/ZA79388B/xx unknown
- 1979-01-30 SE SE7900793A patent/SE7900793L/ not_active Application Discontinuation
- 1979-01-30 BR BR7900561A patent/BR7900561A/pt unknown
- 1979-01-30 JP JP884579A patent/JPS54116404A/ja active Pending
- 1979-01-31 FI FI790318A patent/FI790318A/fi unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2100496A (en) * | 1936-02-18 | 1937-11-30 | Mathieson Alkali Works Inc | Bleaching of cellulosic materials |
US2120678A (en) * | 1936-03-30 | 1938-06-14 | Hammermill Paper Co | Bleaching and purifying process |
US2494542A (en) * | 1946-05-02 | 1950-01-17 | Niagara Alkali Company | Method of bleaching pulp |
DE1959118A1 (de) * | 1968-12-05 | 1970-06-11 | Mo Och Domsjoe Ab | Verfahren zur Herstellung gebleichter Cellulosepulpe |
FR2071947A1 (fr) * | 1969-12-19 | 1971-09-24 | Canadian Ind | |
FR2322235A1 (fr) * | 1975-08-30 | 1977-03-25 | Degussa | Attaque blanchissante de la cellulose avec reduction importante de la quantite de chlore utilisee |
Non-Patent Citations (1)
Title |
---|
EXBK/74 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401149A1 (fr) * | 1989-05-19 | 1990-12-05 | Fmc Corporation | Délignification à l'oxygène renforcée au peroxide d'hydrogène |
WO1992021813A1 (fr) * | 1991-06-07 | 1992-12-10 | Ici Canada Inc. | Procede de blanchiment biologique |
Also Published As
Publication number | Publication date |
---|---|
ZA79388B (en) | 1980-02-27 |
SE7900793L (sv) | 1979-08-01 |
FR2416297B1 (fr) | 1983-01-07 |
BE873765A (fr) | 1979-07-30 |
OA06169A (fr) | 1981-06-30 |
FI790318A (fi) | 1979-08-01 |
DE2903014A1 (de) | 1979-08-02 |
JPS54116404A (en) | 1979-09-10 |
BR7900561A (pt) | 1979-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |