NO984593L - Method of Bleaching Chemical Pulp - Google Patents
Method of Bleaching Chemical PulpInfo
- Publication number
- NO984593L NO984593L NO984593A NO984593A NO984593L NO 984593 L NO984593 L NO 984593L NO 984593 A NO984593 A NO 984593A NO 984593 A NO984593 A NO 984593A NO 984593 L NO984593 L NO 984593L
- Authority
- NO
- Norway
- Prior art keywords
- chemical pulp
- bleaching chemical
- bleaching
- pulp
- boiling
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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
-
- 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
- D21C9/16—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)
Abstract
En fremgangsmåte for bleking av kjemiske papirmasser der massene efter koking og eventuelt forbleking underkastes minst en behandling med klordioksyd i nærvær av oksygen.A process for bleaching chemical pulp, where the pulp after boiling and possibly bleaching is subjected to at least one treatment with chlorine dioxide in the presence of oxygen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9712367A FR2769327B1 (en) | 1997-10-03 | 1997-10-03 | PROCESS FOR BLEACHING CHEMICAL PAPER PULP |
Publications (2)
Publication Number | Publication Date |
---|---|
NO984593D0 NO984593D0 (en) | 1998-10-01 |
NO984593L true NO984593L (en) | 1999-04-06 |
Family
ID=9511814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO984593A NO984593L (en) | 1997-10-03 | 1998-10-01 | Method of Bleaching Chemical Pulp |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0906987A1 (en) |
JP (1) | JPH11152693A (en) |
KR (1) | KR19990036671A (en) |
CN (1) | CN1213722A (en) |
AU (1) | AU8787798A (en) |
BR (1) | BR9803865A (en) |
CA (1) | CA2246569A1 (en) |
FR (1) | FR2769327B1 (en) |
ID (1) | ID21153A (en) |
MA (1) | MA24659A1 (en) |
NO (1) | NO984593L (en) |
ZA (1) | ZA988300B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101105011B (en) * | 2004-01-17 | 2010-05-12 | 梅秀泉 | Oxygen delignification and bleaching integration paste preparing method and device for realizing the same method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706673A (en) * | 1951-10-19 | 1955-04-19 | Elmer R Burling | Method of bleaching with chlorine dioxide |
EP0651832B1 (en) * | 1991-08-23 | 1998-01-07 | Olin Corporation | Process for gas phase delignifying wood pulp |
WO1996015317A1 (en) * | 1994-11-10 | 1996-05-23 | Olin Corporation | Process for gas phase chlorine dioxide delignification |
-
1997
- 1997-10-03 FR FR9712367A patent/FR2769327B1/en not_active Expired - Fee Related
-
1998
- 1998-09-03 EP EP98402178A patent/EP0906987A1/en not_active Withdrawn
- 1998-09-10 ZA ZA988300A patent/ZA988300B/en unknown
- 1998-09-24 KR KR1019980039686A patent/KR19990036671A/en not_active Application Discontinuation
- 1998-09-25 CN CN98120727A patent/CN1213722A/en active Pending
- 1998-09-29 MA MA25275A patent/MA24659A1/en unknown
- 1998-10-01 JP JP10279873A patent/JPH11152693A/en active Pending
- 1998-10-01 NO NO984593A patent/NO984593L/en not_active Application Discontinuation
- 1998-10-02 CA CA002246569A patent/CA2246569A1/en not_active Abandoned
- 1998-10-02 ID IDP981319A patent/ID21153A/en unknown
- 1998-10-02 AU AU87877/98A patent/AU8787798A/en not_active Abandoned
- 1998-10-02 BR BR9803865-6A patent/BR9803865A/en unknown
Also Published As
Publication number | Publication date |
---|---|
MA24659A1 (en) | 1999-04-01 |
AU8787798A (en) | 1999-04-22 |
CA2246569A1 (en) | 1999-04-03 |
EP0906987A1 (en) | 1999-04-07 |
FR2769327B1 (en) | 1999-11-05 |
NO984593D0 (en) | 1998-10-01 |
KR19990036671A (en) | 1999-05-25 |
ID21153A (en) | 1999-04-29 |
BR9803865A (en) | 1999-12-07 |
ZA988300B (en) | 1999-03-11 |
JPH11152693A (en) | 1999-06-08 |
FR2769327A1 (en) | 1999-04-09 |
CN1213722A (en) | 1999-04-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |