ATE147808T1 - Modifikation von einer waschpresse zur delignifizierung mittels sauerstoff - Google Patents
Modifikation von einer waschpresse zur delignifizierung mittels sauerstoffInfo
- Publication number
- ATE147808T1 ATE147808T1 AT92203241T AT92203241T ATE147808T1 AT E147808 T1 ATE147808 T1 AT E147808T1 AT 92203241 T AT92203241 T AT 92203241T AT 92203241 T AT92203241 T AT 92203241T AT E147808 T1 ATE147808 T1 AT E147808T1
- Authority
- AT
- Austria
- Prior art keywords
- pulp
- oxygen
- consistency
- delignification
- alkaline material
- 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
-
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Television Systems (AREA)
- Gas Separation By Absorption (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Detergent Compositions (AREA)
- Cleaning By Liquid Or Steam (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78418491A | 1991-10-29 | 1991-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE147808T1 true ATE147808T1 (de) | 1997-02-15 |
Family
ID=25131607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT92203241T ATE147808T1 (de) | 1991-10-29 | 1992-10-22 | Modifikation von einer waschpresse zur delignifizierung mittels sauerstoff |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0540091B1 (de) |
| JP (1) | JPH05195466A (de) |
| KR (1) | KR960006125B1 (de) |
| CN (1) | CN1080343A (de) |
| AT (1) | ATE147808T1 (de) |
| AU (1) | AU647973B2 (de) |
| BR (1) | BR9204173A (de) |
| CA (1) | CA2081398C (de) |
| DE (1) | DE69216757D1 (de) |
| FI (1) | FI924751A (de) |
| NO (1) | NO924080L (de) |
| NZ (1) | NZ244837A (de) |
| SE (1) | SE9203113L (de) |
| ZA (1) | ZA928294B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863113A1 (de) * | 1997-03-07 | 1998-09-09 | Akzo Nobel N.V. | Verfahren zur Aufbereitung von Abwasser |
| US6425974B1 (en) | 1997-03-07 | 2002-07-30 | Akzo Nobel N.V. | Process for treating wastewater from a bleach plant |
| FI122241B (fi) * | 2007-06-15 | 2011-10-31 | Andritz Oy | Menetelmä massan pesun yhteydessä sellutehtaalla |
| WO2011156708A1 (en) * | 2010-06-10 | 2011-12-15 | Packaging Corporation Of America | Method of manufacturing pulp for corrugated medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62501921A (ja) * | 1985-02-14 | 1987-07-30 | エルトン，エドワ−ド フランシス | リグノセルロ−ス繊維状物質のアルカリ脱リグニン方法と装置 |
| US5173153A (en) * | 1991-01-03 | 1992-12-22 | Union Camp Patent Holding, Inc. | Process for enhanced oxygen delignification using high consistency and a split alkali addition |
| US5085734A (en) * | 1989-02-15 | 1992-02-04 | Union Camp Patent Holding, Inc. | Methods of high consistency oxygen delignification using a low consistency alkali pretreatment |
| JPH02289194A (ja) * | 1989-04-20 | 1990-11-29 | Mitsubishi Paper Mills Ltd | リグノセルロース物質の酸素漂白法 |
-
1992
- 1992-10-20 FI FI924751A patent/FI924751A/fi not_active Application Discontinuation
- 1992-10-21 NO NO92924080A patent/NO924080L/no unknown
- 1992-10-21 NZ NZ244837A patent/NZ244837A/en unknown
- 1992-10-21 AU AU27168/92A patent/AU647973B2/en not_active Ceased
- 1992-10-22 EP EP92203241A patent/EP0540091B1/de not_active Expired - Lifetime
- 1992-10-22 AT AT92203241T patent/ATE147808T1/de not_active IP Right Cessation
- 1992-10-22 DE DE69216757T patent/DE69216757D1/de not_active Expired - Lifetime
- 1992-10-23 SE SE9203113A patent/SE9203113L/ not_active Application Discontinuation
- 1992-10-26 CA CA002081398A patent/CA2081398C/en not_active Expired - Fee Related
- 1992-10-27 BR BR929204173A patent/BR9204173A/pt not_active Application Discontinuation
- 1992-10-27 ZA ZA928294A patent/ZA928294B/xx unknown
- 1992-10-28 KR KR1019920019881A patent/KR960006125B1/ko active IP Right Grant
- 1992-10-29 CN CN92113767A patent/CN1080343A/zh active Pending
- 1992-10-29 JP JP4291469A patent/JPH05195466A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69216757D1 (de) | 1997-02-27 |
| CN1080343A (zh) | 1994-01-05 |
| CA2081398C (en) | 1997-03-25 |
| AU2716892A (en) | 1993-05-20 |
| NO924080D0 (no) | 1992-10-21 |
| NO924080L (no) | 1993-04-30 |
| ZA928294B (en) | 1993-05-18 |
| KR960006125B1 (ko) | 1996-05-09 |
| JPH05195466A (ja) | 1993-08-03 |
| SE9203113D0 (sv) | 1992-10-23 |
| EP0540091A1 (de) | 1993-05-05 |
| CA2081398A1 (en) | 1993-04-30 |
| FI924751A0 (fi) | 1992-10-20 |
| NZ244837A (en) | 1994-10-26 |
| FI924751A (fi) | 1993-04-30 |
| KR930008238A (ko) | 1993-05-21 |
| AU647973B2 (en) | 1994-03-31 |
| EP0540091B1 (de) | 1997-01-15 |
| BR9204173A (pt) | 1993-05-04 |
| SE9203113L (sv) | 1993-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |