摘要:
A process is provided for the oxydehydrogenation of aldehydes such as isobutyraldehyde with oxygen in the presence of iron phosphorus oxide catalysts containing promoters selected from Ag, Al, B, Be, Cd, Co, Cr, Cu, Ga, Ge, In, Mn, Ni, Te, Th, Ti, Tl, U, V, Zn, Zr, rare earths and mixtures thereof.
摘要:
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.xwhereM is at least one of K, Rb, Cs and Tl;M' is at least one of Be, Mg, Ca, Sr, Ba, Nb and Sb; andx is a positive number that satisfies the valence requirements of the other elements present.
摘要:
Aldehydes, such as acetaldehyde, are oxidized to carboxylic acids, such as acetic acid, by contacting the aldehyde with oxygen at oxidative conditions in the presence of a catalyst of the empirical formulaMo.sub.12 P.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.1-3 M.sub.0.1-3 M'.sub.0.01-3 O.sub.x (I)whereM is at least one of K, Rb, Cs and Tl;M' is at least one of Be, Mg, Ca, Sr, Ba, Nb, Ti, Zr, Ta, Mn, Fe, Co, Ni, Zn, Ag, Al, Ge, Sn, Pb, As, Bi, Te, Ce, Th, U and Sb; andx is a number that satisfies the valence requirements of the other elements present.