C - Chemistry – Metallurgy – 13 – K
Patent
C - Chemistry, Metallurgy
13
K
260/133, 260/232
C13K 1/02 (2006.01) C13K 13/00 (2006.01) D21C 3/20 (2006.01) C07G 1/00 (2006.01) C08H 6/00 (2010.01)
Patent
CA 1225636
METHOD FOR CONTINUOUS COUNTERCURRENT ORGANOSOLV SACCHARIFICATION OF WOOD AND OTHER LIGNOCELLULOSIC MATERIALS ABSTRACT OF THE DISCLOSURE A novel method for the continuous counter- current production of lignins and sugars from wood and other ligno cellulosic materials by organosolv deligni- fication or saccharification at elevated temperatures and pressures is disclosed. The novel method comprises: (a) continuously introducing comminuted lignocellulose materials with a natural moisture content into a reac- tion vessel from one end; (b) continuously introducing a cooking liquor comprising a major proportion of organic solvent, a minor proportion of water, and a slight amount of inorganic acid countercurrently into the reaction vessel from the opposite end; (c) causing the comminuted lignocellulosic material to be contacted by the cooking liquor; and (d) continuously withdrawing cooking liquor from the reaction vessel after it has commingled with and has dissolved sugars and lignin and other substances from the comminuted lignocellulosic material.
458893
Oyen Wiggs Green & Mutala Llp
Tonachel Pierre A. (in Trust)
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