FIELD: chemistry.
SUBSTANCE: invention relates to a method of hydrogenating phenol on a palladium catalyst (0.5 wt % Pd on super-crosslinked polystyrene) in excess hydrogen with molar ratio of hydrogen to phenol of 4-5:1 at atmospheric pressure. The method includes diluting the catalyst with an inert diluent (ceramic spheres with diameter of 1-2 mm) and the process is carried out in the temperature range of 120-220°C with volume rate of feeding the raw material of 0.4-2.0 h-1. The method enables to obtain cyclohexanone with selectivity of 87.1-100% with phenol conversion of 84.0-99.8%.
EFFECT: improved method.
1 ex
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