ATE458856T1 - Verfahren zur zuführung von waschflüssigkeit an eine zellstoffkochung - Google Patents
Verfahren zur zuführung von waschflüssigkeit an eine zellstoffkochungInfo
- Publication number
- ATE458856T1 ATE458856T1 AT02731041T AT02731041T ATE458856T1 AT E458856 T1 ATE458856 T1 AT E458856T1 AT 02731041 T AT02731041 T AT 02731041T AT 02731041 T AT02731041 T AT 02731041T AT E458856 T1 ATE458856 T1 AT E458856T1
- Authority
- AT
- Austria
- Prior art keywords
- washing liquid
- bar
- pump
- digester
- interval
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- D21C9/04—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in diffusers ; Washing of pulp of fluid consistency without substantially thickening
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
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 |
---|---|---|---|
SE0101557A SE517674E8 (sv) | 2001-05-02 | 2001-05-02 | Förfarande för tvättvätsketillförsel till kokningsprocess för cellulosamassa |
PCT/SE2002/000832 WO2002088461A1 (en) | 2001-05-02 | 2002-04-29 | Method for supplying washing liquid to a process for cooking cellulose pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE458856T1 true ATE458856T1 (de) | 2010-03-15 |
Family
ID=20283975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT02731041T ATE458856T1 (de) | 2001-05-02 | 2002-04-29 | Verfahren zur zuführung von waschflüssigkeit an eine zellstoffkochung |
Country Status (9)
Country | Link |
---|---|
US (1) | US6966970B2 (de) |
EP (1) | EP1397550B1 (de) |
JP (1) | JP4058347B2 (de) |
AT (1) | ATE458856T1 (de) |
BR (1) | BR0209141B1 (de) |
DE (1) | DE60235463D1 (de) |
PT (1) | PT1397550E (de) |
SE (1) | SE517674E8 (de) |
WO (1) | WO2002088461A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE519555C2 (sv) * | 2002-05-21 | 2003-03-11 | Kvaerner Pulping Tech | Metod för kontinuerlig kokning av vedrådvara till cellulosamassa |
SE533610C2 (sv) * | 2009-03-26 | 2010-11-02 | Metso Fiber Karlstad Ab | Förfarande och anordning för tvätt efter avslutat kok i en kontinuerlig kokare för framställning av cellulosamassa |
FI123023B (fi) * | 2009-09-01 | 2012-10-15 | Andritz Oy | Menetelmä ja laitteisto suovan erottamiseksi |
SE534400C2 (sv) * | 2009-12-23 | 2011-08-09 | Metso Paper Sweden Ab | Förfarande och anordning för förbättring av en tvätt efter avslutat kok i en kontinuerlig kokare |
US8951388B2 (en) | 2011-04-08 | 2015-02-10 | Pec-Tech Engineering And Construction Pte Ltd | Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digester |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1934957A (en) * | 1932-12-16 | 1933-11-14 | Lewis L Alsted | Process for the manufacture of paper pulp |
US3700548A (en) * | 1971-04-28 | 1972-10-24 | Improved Machinery Inc | Apparatus and methods of continuous digesting |
SE431662B (sv) * | 1974-07-05 | 1984-02-20 | Kamyr Ab | Sett vid kontinuerlig kokning av fibermaterial |
US4123318A (en) * | 1976-06-29 | 1978-10-31 | Kamyr, Inc. | Three-vessel treatment system |
US4436586A (en) * | 1982-01-22 | 1984-03-13 | Kamyr, Inc. | Method of producing kraft pulp using an acid prehydrolysis and pre-extraction |
US5066362A (en) * | 1987-12-01 | 1991-11-19 | Kamyr, Inc. | Extended delignification in pressure diffusers |
DE69128059T2 (de) * | 1990-08-17 | 1998-02-26 | Alcell Tech Inc | Verfahren zum Lösungsmittel-Stetigaufschluss |
CA2037717C (en) * | 1990-09-17 | 1996-03-05 | Bertil Stromberg | Extended kraft cooking with white liquor added to wash circulation |
US5203963A (en) * | 1991-10-21 | 1993-04-20 | A. Ahlstrom Corporation | Continuous treatment of small chips |
SE501848C2 (sv) * | 1992-11-18 | 1995-06-06 | Kvaerner Pulping Tech | Metod att koka massa kontinuerligt vid konstant temperatur |
US6325888B1 (en) * | 1995-08-31 | 2001-12-04 | Andritz-Ahlstrom Inc. | Method for pulping sawdust |
SE506458C2 (sv) * | 1996-02-09 | 1997-12-15 | Kvaerner Pulping Tech | Kontinuerlig kokning av cellulosahaltigt material med värmeväxling mellan kokaravdrag och cirkulerande kokvätska |
SE515971C2 (sv) * | 2000-11-03 | 2001-11-05 | Kvaerner Pulping Tech | Kontinuerlig kokning av massa med nettomedströmsflöde i kokarens bottenparti |
SE0004049L (sv) * | 2000-11-03 | 2001-11-05 | Kvaerner Pulping Tech | Kontinuerlig kokning av massa med avdrag av begagnad koklut dels från kokaren, dels från en efterföljande tryckdiffusör |
-
2001
- 2001-05-02 SE SE0101557A patent/SE517674E8/sv not_active IP Right Cessation
-
2002
- 2002-04-29 BR BRPI0209141-0A patent/BR0209141B1/pt not_active IP Right Cessation
- 2002-04-29 JP JP2002585734A patent/JP4058347B2/ja not_active Expired - Fee Related
- 2002-04-29 DE DE60235463T patent/DE60235463D1/de not_active Expired - Lifetime
- 2002-04-29 WO PCT/SE2002/000832 patent/WO2002088461A1/en active Application Filing
- 2002-04-29 EP EP02731041A patent/EP1397550B1/de not_active Expired - Lifetime
- 2002-04-29 US US10/474,223 patent/US6966970B2/en not_active Expired - Lifetime
- 2002-04-29 PT PT02731041T patent/PT1397550E/pt unknown
- 2002-04-29 AT AT02731041T patent/ATE458856T1/de active
Also Published As
Publication number | Publication date |
---|---|
SE517674E (sv) | 2010-04-20 |
WO2002088461A1 (en) | 2002-11-07 |
US6966970B2 (en) | 2005-11-22 |
SE517674C2 (sv) | 2002-07-02 |
US20040108084A1 (en) | 2004-06-10 |
SE0101557D0 (sv) | 2001-05-02 |
EP1397550A1 (de) | 2004-03-17 |
SE0101557L (sv) | 2002-07-02 |
JP4058347B2 (ja) | 2008-03-05 |
JP2004524459A (ja) | 2004-08-12 |
BR0209141A (pt) | 2004-06-08 |
DE60235463D1 (de) | 2010-04-08 |
BR0209141B1 (pt) | 2011-09-20 |
EP1397550B1 (de) | 2010-02-24 |
SE517674E8 (sv) | 2015-10-20 |
PT1397550E (pt) | 2010-05-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification |
Ref document number: 1397550 Country of ref document: EP |
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EEIH | Change in the person of patent owner |