FI20000806A - Menetelmä lignoselluloosamassan valkaisemiseksi - Google Patents
Menetelmä lignoselluloosamassan valkaisemiseksi Download PDFInfo
- Publication number
- FI20000806A FI20000806A FI20000806A FI20000806A FI20000806A FI 20000806 A FI20000806 A FI 20000806A FI 20000806 A FI20000806 A FI 20000806A FI 20000806 A FI20000806 A FI 20000806A FI 20000806 A FI20000806 A FI 20000806A
- Authority
- FI
- Finland
- Prior art keywords
- lignocellulosic pulp
- bleaching lignocellulosic
- bleaching
- pulp
- lignocellulosic
- 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
- D21C9/12—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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20000806A FI20000806A (fi) | 2000-04-05 | 2000-04-05 | Menetelmä lignoselluloosamassan valkaisemiseksi |
EP01931579A EP1272706A1 (en) | 2000-04-05 | 2001-04-04 | A process for bleaching a lignocellulosic pulp |
AU2001258319A AU2001258319A1 (en) | 2000-04-05 | 2001-04-04 | A process for bleaching a lignocellulosic pulp |
PCT/EP2001/004067 WO2001075221A1 (en) | 2000-04-05 | 2001-04-04 | A process for bleaching a lignocellulosic pulp |
CA002404691A CA2404691A1 (en) | 2000-04-05 | 2001-04-04 | A process for bleaching a lignocellulosic pulp |
US10/240,697 US20030155086A1 (en) | 2000-04-05 | 2001-04-04 | Process for bleaching a lignocellulosic pulp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20000806A FI20000806A (fi) | 2000-04-05 | 2000-04-05 | Menetelmä lignoselluloosamassan valkaisemiseksi |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20000806A0 FI20000806A0 (fi) | 2000-04-05 |
FI20000806A true FI20000806A (fi) | 2001-10-06 |
Family
ID=8558130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20000806A FI20000806A (fi) | 2000-04-05 | 2000-04-05 | Menetelmä lignoselluloosamassan valkaisemiseksi |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030155086A1 (fi) |
EP (1) | EP1272706A1 (fi) |
AU (1) | AU2001258319A1 (fi) |
CA (1) | CA2404691A1 (fi) |
FI (1) | FI20000806A (fi) |
WO (1) | WO2001075221A1 (fi) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7056419B2 (en) | 2002-09-30 | 2006-06-06 | American Air Liquide, Inc. | Methods for modifying electrical properties of papermaking compositions using carbon dioxide |
CA2643093C (en) * | 2006-03-13 | 2010-11-30 | Fpinnovations | Near-neutral chlorine dioxide bleaching of pulp |
US8920603B2 (en) * | 2006-10-11 | 2014-12-30 | Akzo Nobel N.V. | Bleaching of pulp |
US9057156B2 (en) * | 2010-12-22 | 2015-06-16 | Skzo Nobel Chemicals International B.V. | Process for improving chlorine dioxide bleaching of pulp |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB815247A (en) * | 1955-07-19 | 1959-06-24 | Columbia Cellulose Company Ltd | Bleaching woob pulps |
AU1175188A (en) * | 1987-02-27 | 1988-09-01 | Boc Group, Inc., The | Use of gaseous carbon dioxide to adjust ph of cellulosic pulp |
US5139613A (en) * | 1988-01-21 | 1992-08-18 | Canadian Liquid Air Limited | Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pulp |
CA2069713C (en) * | 1992-05-27 | 2003-05-13 | Derek Hornsey | Carbon dioxide in neutral and alkaline sizing processes |
FI102911B1 (fi) * | 1997-06-13 | 1999-03-15 | Aga Ab | Menetelmä massasuspension pH:n stabiloimiseksi ja paperin tuottamiseksi stabiloidusta massasta |
JPH1181173A (ja) * | 1997-09-01 | 1999-03-26 | Oji Paper Co Ltd | 漂白パルプの製造方法 |
FI991241A (fi) * | 1999-06-01 | 2000-12-02 | Aga Ab | Ligniinin valkaisu ja menetelmä paperin valmistamiseksi |
-
2000
- 2000-04-05 FI FI20000806A patent/FI20000806A/fi not_active Application Discontinuation
-
2001
- 2001-04-04 CA CA002404691A patent/CA2404691A1/en not_active Abandoned
- 2001-04-04 US US10/240,697 patent/US20030155086A1/en not_active Abandoned
- 2001-04-04 WO PCT/EP2001/004067 patent/WO2001075221A1/en not_active Application Discontinuation
- 2001-04-04 EP EP01931579A patent/EP1272706A1/en not_active Withdrawn
- 2001-04-04 AU AU2001258319A patent/AU2001258319A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1272706A1 (en) | 2003-01-08 |
US20030155086A1 (en) | 2003-08-21 |
AU2001258319A1 (en) | 2001-10-15 |
FI20000806A0 (fi) | 2000-04-05 |
WO2001075221A1 (en) | 2001-10-11 |
CA2404691A1 (en) | 2001-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |