EP 1828254 A1 20070905 - METHOD FOR PRODUCTION OF HEMICELLULOSE FROM LIGNOCELLULOSE MATERIAL
Title (en)
METHOD FOR PRODUCTION OF HEMICELLULOSE FROM LIGNOCELLULOSE MATERIAL
Title (de)
VERFAHREN ZUR GEWINNUNG VON HEMICELLULOSEN AUS LIGNOCELLULOSISCHEM MATERIAL
Title (fr)
PROCEDE DE PRODUCTION D'HEMICELLULOSES A PARTIR D'UN MATERIAU LIGNOCELLULOSIQUE
Publication
Application
Priority
- EP 2005012974 W 20051203
- DE 102004060283 A 20041215
Abstract (en)
[origin: US2006128952A1] A process of recovering hemicellulose from lignocellulosic material (e.g., oat husks) is described. The process involves: (a) contacting lignocellulose with an aqueous alkaline solution, thereby forming an alkaline extract; and (b) contacting the alkaline extract with a precipitation bath that includes water and an organic liquid A which is miscible with water, thereby forming a precipitate comprising hemicellulose. In the method of the present invention: (i) the alkaline extract is not neutralised prior to contact with the precipitation bath; and (ii) after completion of precipitation step-(b) the precipitation bath includes organic liquid A in an amount of from 25 wt. % to 70 wt. %, based on the weight of the precipitation bath.
IPC 8 full level
C08B 37/14 (2006.01)
CPC (source: EP US)
C08B 37/0057 (2013.01 - EP US); C08H 8/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2006066724A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2006128952 A1 20060615; AU 2005318574 A1 20060629; CA 2580414 A1 20060629; DE 102004060283 A1 20060629; EP 1828254 A1 20070905; NO 20071325 L 20070403; WO 2006066724 A1 20060629
DOCDB simple family (application)
US 30177505 A 20051213; AU 2005318574 A 20051203; CA 2580414 A 20051203; DE 102004060283 A 20041215; EP 05818709 A 20051203; EP 2005012974 W 20051203; NO 20071325 A 20070312