Method for the decomposition of a raw-material that contains...

Details Method for the decomposition of a raw-material that contains... Method for the decomposition of a raw-material that contains...

C - Chemistry, Metallurgy

07

C

260/232, 260/534

C07C 29/00 (2006.01) C07C 51/42 (2006.01) C13K 1/02 (2006.01) C13K 13/00 (2006.01)

Patent

CA 1051884

Abstract of the Disclosure The subject of the present invention is a continuous method for the decomposition of a raw-material that contains polysaccharides by means of acid hydrolysis. According to the method, the raw-material is hydrolyzed continuously in one reactor as two steps. In the first step, the hydrolysis is run in the upper part of the reactor in a vapour phase, whereby pentosans are decomposed mainly into furfural, acetic acid, methanol, and acetone, and hexosans are decomposed into disaccharides and trisaccharides. In the second step, the hydrolysis is run in the bottom part of the reactor in a liquid phase, whereby the disaccharides and trisaccharides obtained in the first step are decomposed into monosaccharides and into saccharic and fatty acids.

235735

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