CATALYST FOR OXIDIZING ETHANE AND/OR ETHYLENE INTO ACETIC ACID (OPTIONS) AND ACETIC ACID PRODUCTION METHOD Russian patent published in 2003 - IPC

FIELD: oxidation catalysts. SUBSTANCE: invention concerns catalytic composition, which, in combination with oxygen, includes elements: Mo_aW_bAg_cIr_dX_eY_f, where X denotes Nb or V; Y denotes one or several elements selected from group including Cr, Mn, Ta, Ti, B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Rh, Cu, Au, Fe, Ru, Os, K, Rb, Contains. Mg. Ca. Sr. Ba. Zr. Hf, Ni, P, Pb, Sb, Si, Sn, Tl, U, Re, and Pd; a, b, c, d, e, and f indicate such g- atomic ratios of elements, for which 0 <a≤1, 0≤ b<1 and (a+b)=1; 0 <(c+d) ≤ 0.1; 0 <e ≤ 2 and 0 ≤ f ≤ 2. Catalytic composition can be used in acetic acid production and in combined acetic acid and/or vinyl acetate production. Examples are given for using catalysts such as and Mo_1,00Re_0,25Nb_0,12Sb_0,08Ag_0,014O_y. Method involves bringing gaseous mixture into contact with oxygen- containing gas at elevated temperature until 75% oxygen consumption is attained. EFFECT: increased catalytic activity and yield of acetic acid. 14 cl, 1 tbl, 12 ex