SE0202869D0 - Method of obtaining a fraction - Google Patents

Method of obtaining a fraction

Info

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
Application number
SE0202869A
Other languages
Swedish (sv)
Inventor
Eva Lisa Lindfors
Fredrik Berthold
Hans Theliander
Leelo Olm
Per Tomani
Peter Axegaard
Original Assignee
Skogsind Tekn Foskningsinst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skogsind Tekn Foskningsinst filed Critical Skogsind Tekn Foskningsinst
Priority to SE0202869A priority Critical patent/SE0202869D0/en
Publication of SE0202869D0 publication Critical patent/SE0202869D0/en
Priority to PCT/SE2003/001478 priority patent/WO2004029356A1/en
Priority to AU2003263714A priority patent/AU2003263714A1/en

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  • 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.
SE0202869A 2002-09-27 2002-09-27 Method of obtaining a fraction SE0202869D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0202869A SE0202869D0 (en) 2002-09-27 2002-09-27 Method of obtaining a fraction
PCT/SE2003/001478 WO2004029356A1 (en) 2002-09-27 2003-09-23 Method for obtaining a fraction
AU2003263714A AU2003263714A1 (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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007120091A1 (en) * 2006-03-16 2007-10-25 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
WO2015137868A1 (en) * 2014-03-12 2015-09-17 Ren Fuel K2B Ab Method for efficient extraction of lignin
JP6134445B2 (en) * 2015-01-26 2017-05-24 日本製紙株式会社 Method for producing xylan-containing material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
ATE169699T1 (en) * 1993-06-16 1998-08-15 Lignozym Gmbh METHOD FOR MODIFYING, DEGRADING OR BLEACHING LIGNIN, MATERIALS CONTAINING LIGNIN OR CARBON

Also Published As

Publication number Publication date
WO2004029356A1 (en) 2004-04-08
AU2003263714A1 (en) 2004-04-19

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