SE9801460L - Hetvattenextraktion för massableksekvenser - Google Patents
Hetvattenextraktion för massableksekvenserInfo
- Publication number
- SE9801460L SE9801460L SE9801460A SE9801460A SE9801460L SE 9801460 L SE9801460 L SE 9801460L SE 9801460 A SE9801460 A SE 9801460A SE 9801460 A SE9801460 A SE 9801460A SE 9801460 L SE9801460 L SE 9801460L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- hot water
- water extraction
- effluents
- scale
- Prior art date
Links
- 238000003809 water extraction Methods 0.000 title abstract 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 238000005282 brightening Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004076 pulp bleaching Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
- 238000005406 washing Methods 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
- D21C9/008—Prevention of corrosion or formation of deposits on pulp-treating equipment
-
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
-
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/547,820 US5728264A (en) | 1995-10-25 | 1995-10-25 | Avoidance of salt scaling by acidic pulp washing process |
PCT/US1996/017164 WO1997015712A2 (en) | 1995-10-25 | 1996-10-24 | Hot water extraction for pulp bleaching sequences |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9801460D0 SE9801460D0 (sv) | 1998-04-24 |
SE9801460L true SE9801460L (sv) | 1998-06-20 |
Family
ID=24186265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9801460A SE9801460L (sv) | 1995-10-25 | 1998-04-24 | Hetvattenextraktion för massableksekvenser |
Country Status (5)
Country | Link |
---|---|
US (1) | US5728264A (sv) |
CA (1) | CA2236004A1 (sv) |
FI (1) | FI980909A (sv) |
SE (1) | SE9801460L (sv) |
WO (1) | WO1997015712A2 (sv) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6773547B2 (en) * | 1998-05-08 | 2004-08-10 | American Air Liquide, Inc. | Process for the bleaching of low consistency pulp using high partial pressure ozone |
US6579412B2 (en) | 1998-05-08 | 2003-06-17 | L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for ozone bleaching of low consistency pulp |
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 |
US7019157B2 (en) * | 2001-08-06 | 2006-03-28 | Chisso Corporation | Metallocene compounds, production process for olefin polymers using catalysts containing them and olefin polymers produced by the production process |
SE0402201D0 (sv) * | 2004-09-14 | 2004-09-14 | Stfi Packforsk Ab | Method for separating lignin from black liquor |
US20100224336A1 (en) * | 2005-12-14 | 2010-09-09 | University Of Maine System Board Of Trustees | Process of bleaching a wood pulp |
WO2011094859A1 (en) * | 2010-02-08 | 2011-08-11 | Iogen Energy Corporation | Method for scale removal during a lignocellulosic conversion process |
WO2013188657A1 (en) | 2012-06-13 | 2013-12-19 | University Of Maine System Board Of Trustees | Energy efficient process for preparing nanocellulose fibers |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA973661A (en) * | 1972-09-29 | 1975-09-02 | Pulp And Paper Research Institute Of Canada | Press alkaline extraction of cellulosic pulp |
ZA761255B (en) * | 1975-03-11 | 1977-03-30 | Erco Envirotech Ltd | Bleachplant operation |
US4080249A (en) * | 1976-06-02 | 1978-03-21 | International Paper Company | Delignification and bleaching of a lignocellulosic pulp slurry with ozone |
CA1112813A (en) * | 1978-04-06 | 1981-11-24 | Arthur W. Kempf | Method for extracting ozone-treated fibrous materials |
US4372812A (en) * | 1978-04-07 | 1983-02-08 | International Paper Company | Chlorine free process for bleaching lignocellulosic pulp |
US4283251A (en) * | 1980-01-24 | 1981-08-11 | Scott Paper Company | Ozone effluent bleaching |
JPH01139893A (ja) * | 1987-11-26 | 1989-06-01 | Hakuto Kagaku Kk | 抄紙機用サクションロールの目詰り防止剤及び目詰り防止方法 |
DE69004492T3 (de) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. |
US5352332A (en) * | 1991-01-28 | 1994-10-04 | Maples Gerald E | Process for recycling bleach plant filtrate |
SE469387B (sv) * | 1992-05-11 | 1993-06-28 | Kamyr Ab | Saett vid blekning av massa utan anvaendning av klorkemikalier |
SE500113C2 (sv) * | 1992-07-09 | 1994-04-18 | Kamyr Ab | Sätt vid blekning av massa för omhändertagande av utlösta metaller |
US5401362A (en) * | 1993-03-24 | 1995-03-28 | Kamyr, Inc. | Control of metals and dissolved organics in the bleach plant |
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 |
-
1995
- 1995-10-25 US US08/547,820 patent/US5728264A/en not_active Expired - Fee Related
-
1996
- 1996-10-24 CA CA002236004A patent/CA2236004A1/en not_active Abandoned
- 1996-10-24 WO PCT/US1996/017164 patent/WO1997015712A2/en active Application Filing
-
1998
- 1998-04-24 FI FI980909A patent/FI980909A/sv unknown
- 1998-04-24 SE SE9801460A patent/SE9801460L/sv not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9801460D0 (sv) | 1998-04-24 |
CA2236004A1 (en) | 1997-05-01 |
US5728264A (en) | 1998-03-17 |
FI980909A (sv) | 1998-06-24 |
WO1997015712A3 (en) | 1997-05-29 |
FI980909A0 (sv) | 1996-10-24 |
WO1997015712A2 (en) | 1997-05-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9801460-8 |