CA1249904A - Extraction de la pate de cellulose par intervention d'oxygene et d'alcali - Google Patents
Extraction de la pate de cellulose par intervention d'oxygene et d'alcaliInfo
- Publication number
- CA1249904A CA1249904A CA000474986A CA474986A CA1249904A CA 1249904 A CA1249904 A CA 1249904A CA 000474986 A CA000474986 A CA 000474986A CA 474986 A CA474986 A CA 474986A CA 1249904 A CA1249904 A CA 1249904A
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- oxygen
- alkali
- consistency
- pressurized
- 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
Links
- 239000003513 alkali Substances 0.000 title claims abstract description 45
- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 238000005406 washing Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 19
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 17
- 230000014759 maintenance of location Effects 0.000 claims abstract description 17
- 229920005610 lignin Polymers 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 16
- 238000004061 bleaching Methods 0.000 claims description 13
- 229920001131 Pulp (paper) Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 239000013055 pulp slurry Substances 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000706 filtrate Substances 0.000 description 6
- 238000005660 chlorination reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241001397173 Kali <angiosperm> Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63513584A | 1984-07-27 | 1984-07-27 | |
| US635,135 | 1984-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1249904A true CA1249904A (fr) | 1989-02-14 |
Family
ID=24546587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000474986A Expired CA1249904A (fr) | 1984-07-27 | 1985-02-22 | Extraction de la pate de cellulose par intervention d'oxygene et d'alcali |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS6141385A (fr) |
| BR (1) | BR8501918A (fr) |
| CA (1) | CA1249904A (fr) |
| FI (1) | FI852910L (fr) |
| NO (1) | NO851038L (fr) |
| SE (1) | SE8501032L (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE521780C2 (sv) * | 2003-01-31 | 2003-12-09 | Kvaerner Pulping Tech | Förfarande för blekning av cellulosamassa samt bleklinje härför |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI48486C (fi) * | 1973-01-24 | 1977-07-29 | Ahlstroem Oy | Menetelmä kuitumassan valkaisemiseksi. |
| JPS5126302A (en) * | 1974-08-22 | 1976-03-04 | Hitachi Shipbuilding Eng Co | Sansoganjugasunyoru seruroosubutsushitsuno shorihoho |
| JPS5789690A (en) * | 1980-11-21 | 1982-06-04 | Toyo Pulp Co Ltd | Alkali oxygen delignification of fiber substance |
| JPS5940398A (ja) * | 1982-08-30 | 1984-03-06 | Toshiba Corp | メモリ制御方式 |
-
1985
- 1985-02-22 CA CA000474986A patent/CA1249904A/fr not_active Expired
- 1985-03-04 SE SE8501032A patent/SE8501032L/xx not_active Application Discontinuation
- 1985-03-15 NO NO851038A patent/NO851038L/no unknown
- 1985-04-23 BR BR8501918A patent/BR8501918A/pt unknown
- 1985-04-26 JP JP60089090A patent/JPS6141385A/ja active Pending
- 1985-07-26 FI FI852910A patent/FI852910L/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6141385A (ja) | 1986-02-27 |
| SE8501032L (sv) | 1986-01-28 |
| FI852910L (fi) | 1986-01-28 |
| NO851038L (no) | 1986-01-28 |
| FI852910A0 (fi) | 1985-07-26 |
| SE8501032D0 (sv) | 1985-03-04 |
| BR8501918A (pt) | 1986-05-06 |
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| Publication | Publication Date | Title |
|---|---|---|
| US4806203A (en) | Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction | |
| US3832276A (en) | Delignification and bleaching of a cellulose pulp slurry with oxygen | |
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| JPS61138793A (ja) | 強化酸化抽出法 | |
| US4295926A (en) | Method and apparatus for treating pulp with oxygen | |
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| EP0056263B1 (fr) | Procédé pour améliorer le lavage de pâtes cellulosiques préparées en partant d'une matière lignocellulosique | |
| US4295927A (en) | Method and apparatus for treating pulp with oxygen and storing the treated pulp | |
| CA1207503A (fr) | Methode de blanchiment de la pate de bois | |
| US4288288A (en) | Apparatus for mixing chemicals into pulp at a refiner inlet | |
| EP0106609A1 (fr) | Appareil et méthode pour l'extraction par l'oxygène d'une pâte de basse consistence | |
| US4406735A (en) | Process for alkaline oxygen gas bleaching of cellulose pulp | |
| JPH06184974A (ja) | リグノセルロースパルプの漂白方法および酸素富化ガスの回収方法 | |
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| US3992250A (en) | Method for bleaching of high consistency cellulosic pulp | |
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| US6315863B1 (en) | Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate | |
| AU647485B2 (en) | Pulp alkali addition process for high consistency oxygen delignification | |
| CA1186106A (fr) | Methode et installation de defibrage de la pate par oxygenation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |