Heterogeneous Catalysis - Classes of Heterogeneous Catalysts

Classes of Heterogeneous Catalysts

Although the majority of heterogeneous catalysts are solids, many variations exist.

Reacting phases Examples Comment
solid + gas Ammonia synthesis from N2 + H2 over iron catalysts
solid + solution hydrogenation of fatty acids with nickel used for the production of margarine
immiscible liquid phases hydroformylation of propene catalyst in aqueous phase, reactants and products mainly in nonaqueous phase

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