SE0102012L - Washing of pulp - Google Patents
Washing of pulpInfo
- Publication number
- SE0102012L SE0102012L SE0102012A SE0102012A SE0102012L SE 0102012 L SE0102012 L SE 0102012L SE 0102012 A SE0102012 A SE 0102012A SE 0102012 A SE0102012 A SE 0102012A SE 0102012 L SE0102012 L SE 0102012L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- washing
- fibers
- cations
- swelling
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
By subjecting pulp to a chemical pretreatment step involving the adjustment of the level of cations, preferably Mg<2+>, the bulk and swelling of the fibers can be reduced, improving the drainage and compression properties of said fibers.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102012A SE0102012L (en) | 2001-06-07 | 2001-06-07 | Washing of pulp |
PCT/SE2002/001081 WO2002099185A1 (en) | 2001-06-07 | 2002-06-05 | Chemical pretreatment step in pulp washing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102012A SE0102012L (en) | 2001-06-07 | 2001-06-07 | Washing of pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0102012D0 SE0102012D0 (en) | 2001-06-07 |
SE0102012L true SE0102012L (en) | 2002-12-08 |
Family
ID=20284389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0102012A SE0102012L (en) | 2001-06-07 | 2001-06-07 | Washing of pulp |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE0102012L (en) |
WO (1) | WO2002099185A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9115214B2 (en) | 2012-09-24 | 2015-08-25 | Abengoa Bioenergy New Technologies, Llc | Methods for controlling pretreatment of biomass |
WO2019197862A1 (en) | 2018-04-13 | 2019-10-17 | Eldorado Brasil Celulose S.A. | A process for manufacturing an improved web material by the in-situ measurement and adjustment of ion concentration |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5273625A (en) * | 1990-12-10 | 1993-12-28 | Macmillan Bloedel Limited | Method of treating bleached pulp on a washer with calcium ions to remove sodium ions |
SE500353C2 (en) * | 1992-10-26 | 1994-06-06 | Sca Wifsta Oestrand Ab | Peroxide bleaching of sulfate pulp with the addition of magnesium before bleaching |
EP0709521A1 (en) * | 1994-10-26 | 1996-05-01 | Betz Europe, Inc. | Method for increasing pulp consistency |
-
2001
- 2001-06-07 SE SE0102012A patent/SE0102012L/en not_active Application Discontinuation
-
2002
- 2002-06-05 WO PCT/SE2002/001081 patent/WO2002099185A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2002099185A1 (en) | 2002-12-12 |
SE0102012D0 (en) | 2001-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |