Oxydehydrogenation of isobutyric acid and its lower alkyl esters
AssigneeAshland Oil, Inc.
InventorFerdinand A. Ruszala
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Abstract
Isobutyric acid or a lower alkyl ester thereof is oxidatively dehydrogenated in the vapor phase producing the corresponding .alpha.,.beta.-olefinically unsaturated derivative by contact with a heterogeneous catalyst in the presence of molecular oxygen. The catalyst is composed of the calcined oxides of uranium and tungsten.
Claims3
A process for the catalytic conversion of isobutyric acid or a lower alkyl ester thereof to the corresponding .alpha.,.beta.-olefinically unsaturated derivative by oxydehydrogenation wherein a catalyst is contacted with a gaseous feed stream containing said acid or ester and molecular oxygen at a temperature between about 300.degree. and 500.degree. C. which comprises using as catalyst a material having the gram-atom empirical formula U.sub.a W.sub.b O.sub.x wherein a is 1 to 3, b is 1 to 3, and x is determined by satisfying the sum of the unshared positive valences of the other elements shown in the formula.
Dependencies are inferred from the claim text.