Method for the preparation of aldehydes
AssigneeStamicarbon B.V.
InventorsTheodorus F. M. de Graaf, Hubertus J. A. Delahaye
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Abstract
An improved process for the dehydrogenation of alcohols, to produce aldehydes therefrom, using a copper-containing catalyst, is described wherein the alcohol is introduced in the gas phase initially in admixture with an inert gas only, and after an initial reaction period the alcohol is continued to be introduced, in the gas phase, in an admixture with an inert gas together with a minor amount of hydrogen. As a result, prolonged catalyst activity with retained selectivity is achieved.
Claims9
In processes for the preparation of aldehydes by dehydrogenation of monovalent primary alcohols, having from 2 to 20 carbon atoms, in the gas phase by means of a copper-containing catalyst, the improvement consisting essentially in effecting said dehydrogenation during an initial reaction period using a gas phase mixture of an inert gas and said alcohol and thereafter effecting subsequent dehydrogenation for a second extended reaction period of time using a mixture of said alcohol with an inert gas together with hydrogen.
Dependencies are inferred from the claim text.