Ammoxidation of saturated hydrocarbons
AssigneeRhone-Poulenc Chimie
InventorsGilbert Blanchard, Gilbert Ferre
Life of this patent
Estimating the term…
Abstract
The alkanes, e.g., propane, are ammoxidized into admixtures containing .alpha.,.beta.-unsaturated nitriles, e.g., admixture of acrylonitrile and propylene, by reacting such alkane with ammonia and oxygen, in vapor phase, in the presence of a catalytically effective amount of a solid catalyst, at least one active catalytic phase of which having empirical formula (I): VSb.sub.a M.sub.b O.sub.x (I) in which a is a whole or fractional number equal to or greater than 1, M is iron and/or gallium and/or indium, b is a whole or fractional number equal to or greater than 0.5, and x is a whole or fractional number provided by the oxidation number of the other elements of the at least one active catalytic phase.
Claims22
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):
- VSb.sub.a M.sub.b O.sub.x (I)
- in which a is a number equal to or greater than 1, M is iron, gallium, indium or mixtures thereof, b is a number equal to or greater than 0.5, and x is a number provided by the oxidation number of the other elements of said at least one active catalytic phase and said active catalytic phase represented by formula (I) being the sole ammoxidation component catalyst in the process.
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 a single active phase represented by the empirical formula (I):
- VSb.sub.a M.sub.b O.sub.x (I)
- in which a is a whole or fractional number ranging from 1 to 10 , M is iron, gallium, indium or mixtures thereof, b is a number equal to or greater than 0.5, and x is a number provided by the oxidation number of the other elements of said at least one active catalytic phase and said active catalytic phase represented by formula (I) being the sole ammoxidation component catalyst in the process.
Dependencies are inferred from the claim text.