FR2446355A1 - Additifs pour le blanchiment a l'ozone de pate de bois - Google Patents
Additifs pour le blanchiment a l'ozone de pate de boisInfo
- Publication number
- FR2446355A1 FR2446355A1 FR8000607A FR8000607A FR2446355A1 FR 2446355 A1 FR2446355 A1 FR 2446355A1 FR 8000607 A FR8000607 A FR 8000607A FR 8000607 A FR8000607 A FR 8000607A FR 2446355 A1 FR2446355 A1 FR 2446355A1
- Authority
- FR
- France
- Prior art keywords
- wood pulp
- additives
- ozone bleaching
- bleaching
- pulp ozone
- 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
- D21C9/1073—Bleaching ; Apparatus therefor with O3
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Artificial Filaments (AREA)
Abstract
Dans le blanchiment à l'ozone de pâte de bois, une petite quantité d'alcool améliore le blanchiment. Cet effet se révèle être particulièrement prononcé avec des alcools aliphatiques ayant le groupe hydroxyle sur un atome de carbone terminal. La concentration de l'alcool est comprise entre 0,0000001 et 0,03 mole par litre de la phase liquide Application à la pâte à papier.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/002,491 US4229252A (en) | 1979-01-11 | 1979-01-11 | Additives for ozone bleaching |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2446355A1 true FR2446355A1 (fr) | 1980-08-08 |
FR2446355B1 FR2446355B1 (fr) | 1983-12-30 |
Family
ID=21701034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8000607A Granted FR2446355A1 (fr) | 1979-01-11 | 1980-01-11 | Additifs pour le blanchiment a l'ozone de pate de bois |
Country Status (9)
Country | Link |
---|---|
US (1) | US4229252A (fr) |
JP (1) | JPS55112390A (fr) |
AU (1) | AU528837B2 (fr) |
CA (1) | CA1131410A (fr) |
FI (1) | FI72357C (fr) |
FR (1) | FR2446355A1 (fr) |
NO (1) | NO800048L (fr) |
NZ (1) | NZ192582A (fr) |
SE (1) | SE442027B (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2475084A1 (fr) * | 1979-11-23 | 1981-08-07 | Weyerhaeuser Co | Delignification par l'ozone a faible consistance |
FR2708010A1 (fr) * | 1993-07-21 | 1995-01-27 | Degremont | Procédé de blanchiment de pâtes à papier par l'ozone. |
WO1995033884A1 (fr) * | 1994-06-02 | 1995-12-14 | Macmillan Bloedel Limited | Blanchiment par l'ozone |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622100A (en) * | 1984-10-01 | 1986-11-11 | International Paper Company | Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector |
JPH04504998A (ja) * | 1988-12-27 | 1992-09-03 | カールソン,エスキル エル. | 高圧下のコロナ放電によるオゾンの発生 |
US5472572A (en) * | 1990-10-26 | 1995-12-05 | Union Camp Patent Holding, Inc. | Reactor for bleaching high consistency pulp with ozone |
US5409570A (en) * | 1989-02-15 | 1995-04-25 | Union Camp Patent Holding, Inc. | Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone |
US5211811A (en) * | 1989-02-15 | 1993-05-18 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification |
US5181989A (en) * | 1990-10-26 | 1993-01-26 | Union Camp Patent Holdings, Inc. | Reactor for bleaching high consistency pulp with ozone |
US5188708A (en) * | 1989-02-15 | 1993-02-23 | Union Camp Patent Holding, Inc. | Process for high consistency oxygen delignification followed by ozone relignification |
US4959124A (en) * | 1989-05-05 | 1990-09-25 | International Paper Company | Method of bleaching kraft pulp in a DZED sequence |
US6153051A (en) * | 1989-05-05 | 2000-11-28 | International Paper Company | Method of bleaching kraft pulp employing chlorine dioxide/chlorine-ozone bleach sequence |
AU636173B2 (en) * | 1989-10-30 | 1993-04-22 | Lenzing Aktiengesellschaft | Method for the chlorine-free bleaching of pulps |
US5441603A (en) * | 1990-05-17 | 1995-08-15 | Union Camp Patent Holding, Inc. | Method for chelation of pulp prior to ozone delignification |
US5164044A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
US5164043A (en) * | 1990-05-17 | 1992-11-17 | Union Camp Patent Holding, Inc. | Environmentally improved process for bleaching lignocellulosic materials with ozone |
US5174861A (en) * | 1990-10-26 | 1992-12-29 | Union Camp Patent Holdings, Inc. | Method of bleaching high consistency pulp with ozone |
US5520783A (en) * | 1990-10-26 | 1996-05-28 | Union Camp Patent Holding, Inc. | Apparatus for bleaching high consistency pulp with ozone |
DE69221385T2 (de) * | 1991-05-24 | 1997-12-11 | Union Camp Patent Holding, Inc., Wilmington, Del. | Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon |
SE470234B (sv) * | 1992-05-13 | 1993-12-13 | Kamyr Ab | Sätt vid blekning av cellulosahaltigt fibermaterial med ozon i närvaro av en organisk förening |
JP3121917B2 (ja) * | 1992-07-08 | 2001-01-09 | 住友重機械工業株式会社 | オゾンによるパルプ漂白方法 |
AU5104593A (en) * | 1992-10-23 | 1994-05-24 | Macmillan Bloedel Limited | Improved ozone bleaching |
US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
US6315863B1 (en) | 1998-06-18 | 2001-11-13 | Weyerhaeuser Company | Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate |
SE514947C2 (sv) | 1998-09-09 | 2001-05-21 | Valmet Fibertech Ab | Blekning av massa med ozon innefattande oxalsyratillsats |
US6923887B2 (en) * | 2003-02-21 | 2005-08-02 | Alberta Research Council Inc. | Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium |
CN104191483B (zh) * | 2014-08-08 | 2016-05-18 | 浙江工业大学 | 一种用臭氧对竹筷进行加工处理的方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2189572A1 (en) * | 1972-06-22 | 1974-01-25 | Billeruds Ab | Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4004967A (en) * | 1972-06-22 | 1977-01-25 | Billeruds Aktiebolag | Bleaching cellulose pulp with oxygen in the presence of formaldehyde |
JPS51116207A (en) * | 1975-04-07 | 1976-10-13 | Kogyo Gijutsuin | Improved process for bleaching pulp with ozone |
JPS6055638B2 (ja) * | 1976-10-16 | 1985-12-05 | 工業技術院長 | オゾンによるパルプ漂白法 |
-
1979
- 1979-01-11 US US06/002,491 patent/US4229252A/en not_active Expired - Lifetime
-
1980
- 1980-01-09 NO NO800048A patent/NO800048L/no unknown
- 1980-01-10 NZ NZ192582A patent/NZ192582A/xx unknown
- 1980-01-10 CA CA343,437A patent/CA1131410A/fr not_active Expired
- 1980-01-11 AU AU54566/80A patent/AU528837B2/en not_active Ceased
- 1980-01-11 FI FI800079A patent/FI72357C/fi not_active IP Right Cessation
- 1980-01-11 SE SE8000249A patent/SE442027B/sv not_active IP Right Cessation
- 1980-01-11 JP JP198280A patent/JPS55112390A/ja active Pending
- 1980-01-11 FR FR8000607A patent/FR2446355A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2189572A1 (en) * | 1972-06-22 | 1974-01-25 | Billeruds Ab | Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose |
Non-Patent Citations (1)
Title |
---|
EXBK/78 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2475084A1 (fr) * | 1979-11-23 | 1981-08-07 | Weyerhaeuser Co | Delignification par l'ozone a faible consistance |
FR2708010A1 (fr) * | 1993-07-21 | 1995-01-27 | Degremont | Procédé de blanchiment de pâtes à papier par l'ozone. |
WO1995003448A1 (fr) * | 1993-07-21 | 1995-02-02 | Degremont | Procede de blanchiment de pates a papier par l'ozone |
WO1995033884A1 (fr) * | 1994-06-02 | 1995-12-14 | Macmillan Bloedel Limited | Blanchiment par l'ozone |
Also Published As
Publication number | Publication date |
---|---|
NO800048L (no) | 1980-07-14 |
JPS55112390A (en) | 1980-08-29 |
AU5456680A (en) | 1980-09-04 |
AU528837B2 (en) | 1983-05-12 |
FI800079A (fi) | 1980-07-12 |
FI72357B (fi) | 1987-01-30 |
FR2446355B1 (fr) | 1983-12-30 |
SE442027B (sv) | 1985-11-25 |
US4229252A (en) | 1980-10-21 |
NZ192582A (en) | 1982-12-07 |
SE8000249L (sv) | 1980-07-12 |
FI72357C (fi) | 1987-05-11 |
CA1131410A (fr) | 1982-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |