Abstract
Nickel catalysts on carbon mineral supports obtained from sapropel were synthesized, the influence of the nature of the supports (type of the initial sapropel) and the precursor of the active component on the activity of the catalysts under study in the model reaction of liquid-phase nitrobenzene hydrogenation was studied. It is shown that catalysts based on a mineral support are more active than those based on an organic one, regardless of the nature of the precursor. When comparing the precursors, it was found that the most active catalysts are those obtained using nitrate and nickel formate. The presence of sulfur in the composition of the nickel precursor leads to a decrease in the activity of the catalyst as a result of the formation of the sulfide phase.
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