SE0202869D0 - Method of obtaining a fraction - Google Patents
Method of obtaining a fractionInfo
- Publication number
- SE0202869D0 SE0202869D0 SE0202869A SE0202869A SE0202869D0 SE 0202869 D0 SE0202869 D0 SE 0202869D0 SE 0202869 A SE0202869 A SE 0202869A SE 0202869 A SE0202869 A SE 0202869A SE 0202869 D0 SE0202869 D0 SE 0202869D0
- Authority
- SE
- Sweden
- Prior art keywords
- pulping
- soda
- low molecular
- black liquor
- fraction
- Prior art date
Links
Landscapes
- Paper (AREA)
Abstract
The present invention provides a method for obtaining a low molecular black liquor fraction comprising the following steps:a) separating black liquor into two fractions by using separation means with a cut off of approximately 100 kDa or smaller, or by adding a salt preferably a calcium salt, enabling coagulation; andb) recovering the low molecular fraction. The present invention also providesa method comprising a further step: recovery of the high molecular fraction which is useful as a fuel source which easily may be transported away from the site and used in another site. The present invention also provides a low molecular black liquor fraction obtainable by the above method. The present invention also provides a composition for enhancing the production of chemical pulp based on alkaline processes, e.g. sulfate pulping including polysulfide pulping, soda-aq pulping, soda pulping and alkaline sulfite processes comprising a substance/substances of carbohydratic origin or a low molecular black liquor fraction. The present invention also provides a method for enhancing the production of chemical pulp based on alkaline pulping processes, e.g. sulfate pulping including polysulfide pulping, soda-aq pulping, soda pulping and alkaline sulfite processes comprising adding a composition or a low molecular black liquor fraction. The present invention also provides use of a composition or a low molecular black liquor fraction in alkaline pulping processes, e.g. sulfate pulping including polysulfide pulping, soda-aq pulping, soda pulping and alkaline sulfite processes.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0202869A SE0202869D0 (en) | 2002-09-27 | 2002-09-27 | Method of obtaining a fraction |
AU2003263714A AU2003263714A1 (en) | 2002-09-27 | 2003-09-23 | Method for obtaining a fraction |
PCT/SE2003/001478 WO2004029356A1 (en) | 2002-09-27 | 2003-09-23 | Method for obtaining a fraction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0202869A SE0202869D0 (en) | 2002-09-27 | 2002-09-27 | Method of obtaining a fraction |
Publications (1)
Publication Number | Publication Date |
---|---|
SE0202869D0 true SE0202869D0 (en) | 2002-09-27 |
Family
ID=20289118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0202869A SE0202869D0 (en) | 2002-09-27 | 2002-09-27 | Method of obtaining a fraction |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003263714A1 (en) |
SE (1) | SE0202869D0 (en) |
WO (1) | WO2004029356A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1994041A1 (en) * | 2006-03-16 | 2008-11-26 | STFI-Packforsk AB | Method for separating polymeric pentose from a liquid/slurry |
US7540889B2 (en) * | 2006-07-11 | 2009-06-02 | Bluekey Energy Inc. | Production of a refinery feedstock from soaps produced during a chemical pulping process |
FI127010B (en) | 2012-08-24 | 2017-09-29 | Upm Kymmene Corp | A method for recovering low molecular weight lignin from a filtrate |
EP3116937A4 (en) * | 2014-03-12 | 2018-02-07 | Ren Fuel K2B AB | Method for efficient extraction of lignin |
WO2016121648A1 (en) * | 2015-01-26 | 2016-08-04 | 日本製紙株式会社 | Method for producing xylan-containing material |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764596A (en) * | 1985-11-05 | 1988-08-16 | Repap Technologies Inc. | Recovery of lignin |
US4728393A (en) * | 1985-11-20 | 1988-03-01 | Domtar Inc. | Methods for obtaining deicers from black liquor |
CA1278294C (en) * | 1987-09-17 | 1990-12-27 | George S. Ritchie | Method for fractionation of lignins from steam exploded lignocellulosics to provide fractions with different, but reproducible properties,and some methods for their interconversions and the products so produced |
CZ332595A3 (en) * | 1993-06-16 | 1996-05-15 | Call Hans Peter | Multicomponent packaging system |
-
2002
- 2002-09-27 SE SE0202869A patent/SE0202869D0/en unknown
-
2003
- 2003-09-23 WO PCT/SE2003/001478 patent/WO2004029356A1/en not_active Application Discontinuation
- 2003-09-23 AU AU2003263714A patent/AU2003263714A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2003263714A1 (en) | 2004-04-19 |
WO2004029356A1 (en) | 2004-04-08 |
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