This paper presents the results of a study on catalytic activity and selectivity nickel palladium catalysts in hydrogenation reactions nitro- acetylene compounds. It was shown that phenylacetylene depend nature modifying additives (Cu, Zn, Ti, Cr, Bi, Ti–Cu, Mn, Fe), based polymer metal complexes depends method their preparation. found for certain concentrations active phase (0.8 wt.%) potassiu...