FIELD: chemistry.
SUBSTANCE: present invention relates to a composition of a bifunctional catalyst for simultaneous oxidation of propane to acrylic acid and carbon monoxide to carbon dioxide, to a process for preparing the said composition and to its use. The catalyst composition comprises a compound of the following general formula: MoVaNbbPtcSbd1Ted2ZeOx, where a is a number having a value ranging from 0.15 to 0,50, b is a number having a value ranging from 0.05 to 0.30, c is a number having value in the range from 0.0001 to 0.10, d1 is a number having a value ranging from greater than 0 to 0.30, d2 is a number having a value in the range from 0.01 to 0.30, e is a number having a value ranging from 0 to 0.10, x is a number depending on the relative amount and valence of the elements other than oxygen in the formula (I), and Z represents one or more elements selected from the group consisting of Ru, Mn, Sc, Ti, Cr, Fe, Co, Ni, Cu, Zn, Ga, Y, Zr, Rh, Pd, In, Ce, Pr, Nd, Sm, Tb, Ta, W, Re, Ir, Au, Pb and B, and if more than one element Z is present, then each element Z is changed independently in the range of values e. The method for production of a composition comprising: preparing a first aqueous solution comprising molybdenum source, a source of vanadium, a source of platinum, a source of antimony and a source of tellurium; preparing a second aqueous solution comprising an organic acid and a source of niobium; adding the second aqueous solution to the first aqueous solution to form a catalyst precursor suspension; drying the catalyst precursor and the decomposition of the catalyst precursor to form a catalyst composition; wherein platinum is present in the amount sufficient to form a catalyst, which weight percent of platinum is from 0.1 to 4.5 based on the total weight of the catalyst. The process for converting a hydrocarbon to an unsaturated carboxylic acid is also described.
EFFECT: invention enables simultaneous oxidation of propane to acrylic acid and carbon monoxide to carbon dioxide.
17 cl, 17 dwg, 6 tbl
