CATALYST FOR OXIDISING HYDROCARBONS DURING GAS-PHASE CONTACT, METHOD OF PRODUCING SAID CATALYST AND METHOD FOR GAS-PHASE OXIDATION OF HYDROCARBONS USING SAID CATALYST Russian patent published in 2012 - IPC B01J23/00 B01J37/04 B01J37/08 B01J23/44 C07C51/16 C07C51/21 C07C253/24 

FIELD: chemistry.

SUBSTANCE: described is a catalyst for oxidising hydrocarbons during gas-phase contact, containing a mixed oxide of molybdenum (Mo), vanadium (V), tellurium (Te) and niobium (Nb), having chemical formula 1: Mo₁₀V_aTe_bNb_cO_n, (1) where a, b or c independently denotes atomic molar ratios of vanadium, tellurium or niobium, provided that 0.01≤a≤1, 0.01≤b≤1, 0.01≤c≤1 and n denotes the atomic molar ratio of oxygen, which is determined by valence and atomic molar ratios of vanadium, tellurium and niobium, and palladium (Pd) or palladium oxide bonded to the mixed metal oxide, where the atomic molar ratio of palladium bonded to the mixed metal oxide and molybdenum contained in the mixed metal oxide ranges from 0.00001:1 to 0.02:1. Described is a method of producing said catalyst, comprising steps for: preparing a first mixture of a molybdenum (Mo) precursor, a vanadium (V) precursor, a tellurium precursor (Te), a niobium precursor (Nb) and an acid; preparing a mixed oxide of molybdenum (Mo), vanadium (V), tellurium (Te) and niobium (Nb) by calcining the first mixture; preparing a second mixture of mixed metal oxide and a palladium precursor and calcining the second mixture. Described is a method for gas-phase oxidation of hydrocarbons, involving oxidation of hydrocarbons in the presence of the catalyst described above.

EFFECT: high activity and selectivity of the catalyst.

10 cl, 2 tbl, 12 cl