Catalytic ammoxidation of saturated hydrocarbons
AssigneeRhone-Poulenc Chimie
InventorsGilbert Blanchard, Elisabeth Bordes, Gilbert Ferre
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Abstract
The alkanes, e.g., propane, are selectively converted (ammoxidized) into admixtures comprising .alpha.,.beta.-unsaturated nitriles, e.g., acrylonitrile, by reacting same with ammonia and oxygen, in vapor phase, and in the presence of a catalytically effective amount of a solid catalyst, the catalytically active phase of which comprising (1) molybdenum, vanadium and oxygen and (2) at least one of the elements, manganese, zinc, cobalt, copper, lithium, sodium, potassium and silver.
Claims16
A process for the ammoxidation of a saturated hydrocarbon into an .alpha.,.beta.-ethylenically unsaturated nitrile, by reacting an acyclic alkane containing at least 3 carbon atoms per molecule with ammonia and oxygen, in vapor phase, and in the presence of a catalytically effective amount of a solid catalyst, said catalyst having an active phase represented by the empirical formula (I):
- Mo.sub.a V.sub.b M.sub.c O.sub.x (I)
- in which M is one or more of the elements, manganese, zinc, cobalt, copper, lithium, sodium, potassium, and silver;
- a is a number greater than zero and less than 2;
- b is a number greater than zero and less than 2;
- c is a number greater than zero and less than 1;
- and x is determined by the oxidation number of the other elements thereof and said active phase represented by formula (I) being the sole ammoxidation catalytic component.
A process for the ammoxidation of a saturated hydrocarbon into an .alpha.,.beta.-ethylenically unsaturated nitrile comprising reacting an acyclic alkane containing at least 3 carbon atoms per molecule with ammonia and oxygen, in vapor phase, to obtain an .alpha.,.beta.-ethlenically unsaturated nitrile in the presence of a catalyst having a single catalytic active phase represented by the empirical formula (I):
- Mo.sub.a V.sub.b M.sub.c O.sub.x (I)
- wherein M is one or more elements selected from manganese, zinc, cobalt, copper, lithium, sodium, potassium or silver;
- a is a number ranging from 0.1 to 1;
- b is a number greater than zero and less than 2;
- c is a number greater than zero and less than 1;
- and x is determined by the oxidation number of the other elements thereof and said active phase represented by formula (I) being the sole ammoxidation catalytic component in the process.
Dependencies are inferred from the claim text.