Process for the manufacture of methylglyoxal
AssigneeHoechst Aktiengesellschaft
InventorsHerbert Baltes, Ernst I. Leupold
Life of this patent
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Abstract
Methylglyoxal is manufactured continuously by passing glycerol in the gaseous phase over a heterogeneous dehydrogenation catalyst.
Claims7
A process for the continuous manufacture of methylglyoxal which comprises passing glycerol, in the gaseous phase, over a heterogeneous dehydrogenation catalyst containing a catalytically effective amount of at least one element selected from the group consisting of vanadium, molybdenum, tungsten, cooper, silver, tin, lead, antimony, bismuth and iron said process being conducted at a temperature in the range of 100.degree. to 600.degree. C. and a pressure in the range of 0.01 to 100 bars in the presence of oxygen or an oxygen-containing gas.
The process of any one of claims 12 to 14 wherein the catalyst is applied onto a suitable carrier having a BET surface of less than 20 m.sup.2 /g.
Dependencies are inferred from the claim text.