초록

A mixed metal oxide Mo-V-Ga-Pd-Nb-X (where X=La, Te, Ge, Zn, Si, In or W) catalytic system providing a higher selectivity to acrylic acid in the low temperature partial oxidation of propane with a molecular oxygen-containing gas.

대표청구항 ▼

[ What is claimed is:] [1.] A catalyst system for selective oxidation of propane to oxygenated products including acrylic acid, acrolein and acetic acid, said catalyst system containing a catalyst composition comprising Mo.sub.a V.sub.b Ga.sub.c Pd.sub.d Nb.sub.e X.sub.f O.sub.ywhereinX=at least one

[ What is claimed is:] [1.] A catalyst system for selective oxidation of propane to oxygenated products including acrylic acid, acrolein and acetic acid, said catalyst system containing a catalyst composition comprising Mo.sub.a V.sub.b Ga.sub.c Pd.sub.d Nb.sub.e X.sub.f O.sub.ywhereinX=at least one element selected from La, Te, Ge, Zn, Si, In and W;a is 1;b is 0.01 to 0.9;c is >0 to 0.2;d is 0.0000001 to 0.2;e is >0 to 0.2;f is >0 to 0.5; andy is a number determined by the valence requirements of the elements in the catalyst composition,wherein the numerical values of a, b, c, d, e, f, and y represent the relative gram-atom ratios of the elements Mo, V, Ga, Pd, Nb, X and O, respectively, in the catalyst composition.