MIXED METAL OXIDE CATALYST Russian patent published in 2009 - IPC B01J23/68 C07C51/25 

FIELD: chemistry.

SUBSTANCE: catalytic composition for ethane and/or ethylene oxidation to acetic acid contains the following elements combined with oxygen: molybdenum, vanadium, niobium and gold without palladium according to the empirical formula: Mo_aW_bAu_cV_dNb_eY_f (I), where Y stands for one or morel elements chosen from group, including Cr, Mn, Ta, Ti, B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Rh, Ir, Cu, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, Tl, U, Re, Te and La; a, b, c, d, e and f stand for such gram-atomic element ratios whereat 0.01<a≤1; 0≤b<1 and a+b=1; 0.0005<c<0.001; 0.45≤d≤0.7; 0.15≤e≤0.20; and 0.6≤d+e≤0.9, and 0≤f≤0.02. Besides, there is disclosed method of selective production of acetic acid from mixed gases containing ethane and/or ethylene, involving contacting mixed gases and gas containing molecular oxygen at raised temperature with aforesaid catalytic composition added.

EFFECT: improved selectivity of acetic acid formation.

9 cl, 1 tbl, 3 ex