EP 0211558 A2 19870225 - Process for digesting lignocellulosic material.
Title (en)
Process for digesting lignocellulosic material.
Title (de)
Verfahren zum Aufschluss von Lignocellulosematerial.
Title (fr)
Procédé de digestion de matière lignocellulosique.
Publication
Application
Priority
US 75959185 A 19850726
Abstract (en)
A process for digesting lignocellulosic material. Lignocellulosic material is introduced into a digestive zone along with a liquid composed of an ester with an organic lignin solvent capable of dissolving lignin, and water. The lignocellulosic material is digested at a temperature of 0 DEG C to 230 DEG C for a period of time sufficient to solubilize the lignin in the ester and the solvent. The process of the invention reduces the amount of water in the digestive zone to inhibit the hydrolysis of the cellulose, accelerate the delignification and provide a more economical chemical recovery system.
IPC 1-7
IPC 8 full level
D21C 3/18 (2006.01); D21C 3/20 (2006.01); D21C 3/22 (2006.01)
CPC (source: EP)
D21C 3/20 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0211558 A2 19870225; EP 0211558 A3 19870527; AU 6049386 A 19870319; BR 8603731 A 19870310; CN 86105219 A 19870225; DK 353886 A 19870320; DK 353886 D0 19860725; FI 863069 A0 19860725; FI 863069 A 19870127; JP S6269893 A 19870331; NO 863018 D0 19860725; NO 863018 L 19870127
DOCDB simple family (application)
EP 86305606 A 19860722; AU 6049386 A 19860724; BR 8603731 A 19860725; CN 86105219 A 19860726; DK 353886 A 19860725; FI 863069 A 19860725; JP 17654286 A 19860726; NO 863018 A 19860725