Method for the recovery of furfural, formic acid, acetic...

Details Method for the recovery of furfural, formic acid, acetic... Method for the recovery of furfural, formic acid, acetic...

C - Chemistry, Metallurgy

07

C

202/58, 260/534.

C07C 53/02 (2006.01) C07C 51/44 (2006.01) C07C 53/08 (2006.01) C07D 307/50 (2006.01) D21C 11/00 (2006.01)

Patent

CA 1167051

ABSTRACT A method for extracting furfural, formic acid, arctic acid and other organic components from acidic hydrolysates of pentosan-containing plant material, which hydrolysates contain pentoses, comprising the steps of convert- ing the pentoses into furfural under acidic conditions in a reactor and a counterflow heat exchanger; removing hot reaction mixture from the reactor and passing it in heat exchange relationship to the incoming pentose-containing material, thereby heating the latter and cooling the reaction mixture; and thereafter recovering furfural together with formic acid and acetic acid by distillation from the cooled reaction mixture.

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