Method for extracting the chemical components from...

Details Method for extracting the chemical components from... Method for extracting the chemical components from...

D - Textiles, Paper

21

C

260/133

D21C 3/00 (2006.01) D21C 3/02 (2006.01) C07G 1/00 (2006.01) C08H 6/00 (2010.01)

Patent

CA 1275286

A B S T R A C T The chemical components of lignocellulosic material that have been dissociated by a steam explosion process can be extracted from the mixture of components using a solvent extraction process. The dissociated lignocellulosic material is put in a column and the substances which are soluble in water, alcohol and caustic are leached out of the mixture by solvent extraction with relatively small volumes of those solvents. No agitation is used. Substantially pure cellulose remains in the column and it can be bleached before removal from the column.

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