Process for the production of methacrylic acid from isobutyraldehyde
AssigneeThe Standard Oil Company
InventorsS. Erik Pedersen, Louis F. Wagner, Christos Paparizos
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Abstract
Isobutyraldehyde is oxidized to methacrylic acid by contacting gaseous isobutyraldehyde with molecular oxygen at oxidative conditions in the presence of a catalyst of the empirical formula: Mo.sub.12 P.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 M.sub.0.1-3 M'.sub.0.01-2 O.sub.x where M is at least one of K, Rb, Cs and Tl; M' is at least one of Be, Mg, Ca, Sr, Ba, Nb and Sb; and x is a positive number that satisfies the valence requirements of the other elements present.
Claims10
A process for the production of methacrylic acid from the oxidation of isobutyraldehyde, the process comprising contacting gaseous isobutyraldehyde with molecular oxygen at oxidative conditions in the presence of a catalytic amount of a composition of the empirical formula:
- Mo.sub.12 P.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 M.sub.0.1-3 M'.sub.0.01-2 Ox (I)
- where
- M is at least one of K, Rb, Cs and Tl;
- M' is at least one of Mg, Ca, Sr, Ba, Nb and Sb;
- and
- x is a positive number that satifies the valence requirements of the other elements present.
Dependencies are inferred from the claim text.