Method for the production of sorbit by hydrogenation of suitable mono- and di-saccharides on a ru/sio2 catalyst

摘要

A process is described for preparing sorbitol by catalytic hydrogenation of a monosaccharide forming sorbitol on hydrogenation in the liquid phase, which comprises the catalyst being obtainable by: i) single or multiple treatment of an amorphous silicon dioxide based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200 DEG C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350 DEG C., step ii) being carried out immediately after step i).