SE0102387L - Treatment of recycled filtrates in mass production - Google Patents
Treatment of recycled filtrates in mass productionInfo
- Publication number
- SE0102387L SE0102387L SE0102387A SE0102387A SE0102387L SE 0102387 L SE0102387 L SE 0102387L SE 0102387 A SE0102387 A SE 0102387A SE 0102387 A SE0102387 A SE 0102387A SE 0102387 L SE0102387 L SE 0102387L
- Authority
- SE
- Sweden
- Prior art keywords
- washing
- treatment
- mass production
- recycled
- liquid
- Prior art date
Links
- 239000000706 filtrate Substances 0.000 title 1
- 238000005406 washing Methods 0.000 abstract 4
- 239000007788 liquid Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 239000000835 fiber Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 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
- D21C9/02—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
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The present invention relates to a method of treating pulp. The method according to the invention is particularly well suited for intensifying the washing of fiber suspensions in the wood processing industry in cases where liquid recycled from later washing stages is used as washing liquid. According to a preferred embodiment of the invention part of the washing liquid to be fed to a washer is separated to form a separate flow, which is divided into a cleaner and a fouler fraction that are returned to appropriate locations of the process.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI990127A FI990127A0 (en) | 1999-01-22 | 1999-01-22 | Process for treating pulp |
PCT/FI2000/000045 WO2000043589A1 (en) | 1999-01-22 | 2000-01-20 | Treatment of recirculated filtrates in pulp production |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0102387D0 SE0102387D0 (en) | 2001-07-04 |
SE0102387L true SE0102387L (en) | 2001-07-04 |
Family
ID=8553467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0102387A SE0102387L (en) | 1999-01-22 | 2001-07-04 | Treatment of recycled filtrates in mass production |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU2297400A (en) |
CA (1) | CA2360638A1 (en) |
FI (1) | FI990127A0 (en) |
SE (1) | SE0102387L (en) |
WO (1) | WO2000043589A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI115977B2 (en) * | 2003-04-07 | 2019-03-29 | Stora Enso Oyj | Purification of alkaline washing liquid |
WO2015197917A1 (en) * | 2014-06-23 | 2015-12-30 | Metsä Fibre Oy | Method of delignifying fibrous suspensions of alkaline cooking |
SE538452C2 (en) * | 2014-11-07 | 2016-07-05 | Valmet Oy | Method for operating a two vessel digester system |
SE542676C2 (en) | 2017-11-29 | 2020-06-23 | Axolot Solutions Ab | Method and a system for washing paper pulp |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI85293C (en) * | 1990-05-04 | 1992-03-25 | Poeyry Jaakko & Co Oy | FOERFARANDE FOER RENING OCH AOTERFOERING AV CELLULOSAFABRIKERS BLEKERIAVATTEN. |
SE470538C (en) * | 1992-12-02 | 1996-02-26 | Kvaerner Pulping Tech | When bleaching pulp, use no chlorine-containing chemicals |
SE501613C2 (en) * | 1993-08-03 | 1995-03-27 | Kvaerner Pulping Tech | Method of integrating bleaching and recycling in pulp production |
-
1999
- 1999-01-22 FI FI990127A patent/FI990127A0/en unknown
-
2000
- 2000-01-20 CA CA002360638A patent/CA2360638A1/en not_active Abandoned
- 2000-01-20 WO PCT/FI2000/000045 patent/WO2000043589A1/en active Application Filing
- 2000-01-20 AU AU22974/00A patent/AU2297400A/en not_active Abandoned
-
2001
- 2001-07-04 SE SE0102387A patent/SE0102387L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2000043589A1 (en) | 2000-07-27 |
FI990127A0 (en) | 1999-01-22 |
CA2360638A1 (en) | 2000-07-27 |
SE0102387D0 (en) | 2001-07-04 |
WO2000043589B1 (en) | 2000-10-12 |
AU2297400A (en) | 2000-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |