Nickel Catalysts on Carbon-Mineral Sapropel-Based Supports for Liquid-Phase Hydrogenation of Nitrobenzene

Nickel catalysts with carbon-mineral supports derived from sapropel were synthesized; the effect exerted by nature of support (type initial sapropel) and active component precursor on activity in model reaction liquid-phase nitrobenzene hydrogenation was studied. The catalysts, synthesized using a smaller fraction carbon, more irrespective nature. highest observed for nickel nitrate formate; conversion 65% 51%, respectively, after 1 h reaction. retained high six cycles at 100% aniline selectivity. presence sulfur deteriorated catalytic (convection less than 3%) due to formation sulfide phase.