MIXED OXIDE CATALYSTS FOR CATALYTIC OLEFIN OXIDATION IN GAS PHASE AND METHOD FOR PREPARING THEREOF Russian patent published in 2010 - IPC B01J23/887 B01J23/00 B01J37/03 C07C45/35 C07C51/25 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to mixed oxide catalysts for catalytic oxidation of olefins and methylated aromatic compounds in gas phase, to a method for preparing such catalysts and a method for making aldehydes and carboxylic acids. There are described mixed oxide catalysts of general formula I (Mo₁₂Bi_aC_b(Co+Ni)_cD_dE_eF_fG_gH_h)O_x (I), where C means iron, D means P, E means at least one of elements of the group including Li, K, Na, Rb, Cs, F means Mn, G means at least one of elements of the group including Sm, Gd, La, H means at least one of elements of the group including Si, Al, and a means a number 0 to 5.0, b means a number 0.5 to 5.0, c means a number 2 to 15, d means a number 0.01 to 5.0, e means a number 0.001 to 2, f means a number 0.001 to 5, g means a number 0 to 1.5, h means a number 0 to 800, and h means a number determined by the valence and concentration of the elements differing from oxygen. There is described a method for preparing a catalysts of formula (1), where solutions of the compounds found in mixed oxide catalysts of formula of I metals are mixed; cosediment are prepared; a formed solid substance is recovered, dried, baked and if necessary processed to shape as required. There is also described a method for making aldehydes and acids by air or oxygen oxidation of olefins or methylated aromatic compounds in the inert gas, steam or end reaction gas medium at higher temperatures with using described catalyst of general formula (1).

EFFECT: higher activity and selectivity of the catalyst.

25 cl, 14 ex