EP 4126976 A1 20230208 - METHOD FOR PRODUCING XYLAN
Title (en)
METHOD FOR PRODUCING XYLAN
Title (de)
VERFAHREN ZUR XYLANHERSTELLUNG
Title (fr)
PROCÉDÉ POUR LA PRODUCTION DE XYLANE
Publication
Application
Priority
- FI 20205330 A 20200331
- FI 2021050223 W 20210330
Abstract (en)
[origin: WO2021198561A1] The invention relates a method for producing xylan, which comprises - obtaining an aqueous starting solution comprising xylan and optionally at least one non-cellulosic polysaccharide, and adjusting pH of the aqueous solution to a first pH value ≥7, subjecting the aqueous solution to reducing conditions, and heating the aqueous solution to a reaction temperature of ≥50 °C. The aqueous solution is maintained at the reaction temperature, and xylan particles are precipitated from the aqueous solution by cooling the aqueous solution to a precipitation temperature and/or by reducing pH of the aqueous solution to a precipitation pH. Finally, the precipitated xylan particles are separated from the aqueous solution.
IPC 8 full level
C08B 37/14 (2006.01); C08B 37/00 (2006.01); C08H 8/00 (2006.01); C08L 5/14 (2006.01); C12P 19/04 (2006.01)
CPC (source: EP FI)
C08B 37/0057 (2013.01 - EP); C08B 37/143 (2013.01 - EP FI); C08H 8/00 (2013.01 - EP); C08L 5/14 (2013.01 - EP FI)
Citation (search report)
See references of WO 2021198561A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021198561 A1 20211007; EP 4126976 A1 20230208; FI 129258 B 20211015; FI 20205330 A1 20211001
DOCDB simple family (application)
FI 2021050223 W 20210330; EP 21717488 A 20210330; FI 20205330 A 20200331