| 摘要 |
A process for the preparation of lower polyhydric alcohols by catalytic hydrogenation of aqueous saccharose solutions at elevated temperature and pressure using a catalyst of which the catalytically active material essentially contains the metals cobalt, copper and manganese in the following concentrations, the total weight of said metals being standardized as 100%: from 0 to 100% w/w of cobalt, from 0 to 85% w/w of copper and from 0 to 80% w/w of manganese, this said metal content of said catalytically active material comprising either cobalt alone or at least two of said metals, which active material may also contain added inorganic poly acids and/or heteropoly acids, wherein from 0.01 to 5% w/w of one or more base-acting metal compounds of metals from the first and second main groups and from group IIIA of the Periodic Table are added to the saccharose solution to be hydrogenated.
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