Process for the production of unsaturated acids and esters
AssigneeThe Standard Oil Company
InventorsWilfrid G. Shaw, James E. Rinz, Christos Paparizos
Life of this patent
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Abstract
Saturated, lower aliphatic acids and esters are oxydehydrogenated to the corresponding unsaturated acids and esters by use of a catalyst of the empirical formula: Mo.sub.12 P.sub.0.1-3 Bi.sub.0.01-2 M.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 X.sub.a M'.sub.b O.sub.c (I) where M is at least one of K, Rb and Cs; X is at least one of Ba, Zn, Ga, Cd, Ti, when a>0; M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0; a is a number of 0 to about 2; b is a number of 0 to about 2; and c is a number that satisfies the valence requirements of the other elements present.
Claims12
A vapor-phase process for the production of a compound of the formula ##STR3## the process comprising contacting in the presence of molecular oxygen a compound of the formula ##STR4## where R-R"' are independently hydrogen or a C.sub.1 -C.sub.4 alkyl radical, with a catalytic amount of a catalyst of the formula
- Mo.sub.12 P.sub.0.1-3 Bi.sub.0.01-2 M.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 X.sub.a M'.sub.b O.sub.c (I)
- where
- M is at least one of K, Rb and Cs;
- X is at least one of Ba, Zn, Ga, Cd and Ti when a>0;
- M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0;
- a is a number of 0 to about 2;
- b is a number of 0 to about 2;
- and
- c is a number that satisfies the valence requirements of the other elements present.
Dependencies are inferred from the claim text.