| 摘要 |
<p>The invention relates to a continuous method for the production of sugar alcohols by catalytic hydrogenation of an aqueous solution of a saccharide, which forms the corresponding sugar alcohol on hydrogenation, on a ruthenium catalyst which may be obtained by: i) a single or multiple treatment of a support material made from amorphous silicon dioxide with a halogen free aqueous solution of a low molecular weight ruthenium compound and subsequent drying of the treated support material at a temperature below 200 °C, ii) reduction of the solid obtained in step i) with hydrogen at a temperature in the range 100 to 350 °C, whereby step ii) is carried out directly after step i). The aqueous saccharide solution is brought into contact with the support material before the hydrogenation.</p> |
