FIELD: petrochemical processes and catalysts. SUBSTANCE: catalyst is prepared by impregnating alumina support with aqueous solution of palladium and sodium salts followed by drying, said alumina support having pore volume 0.10 to 0.95 cu.cm/g and said salts being in particular palladium and sodium acetates. Impregnated support, prior to be dried, is held at atmosphere pressure and temperature 1 to 50 C for 0.5 to 24 h. Impregnated support is further subjected to sulfurization with sulfur-containing agent (hydrogen sulfide, carbon sulfide, sodium sulfide) until palladium-to-sulfur weight ratio between 20:1 and 3:1 is attained. EFFECT: enhanced specific activity of catalyst. 3 cl, 2 tbl, 9 ex
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