Abstract
An attempt has been made at obtaining a catalyst for hydrogenation of ortho-chloronitrobenzene ( o-CNB) to ortho-chloroaniline ( o-CAN) which would be both selective and active. Ruthenium has been used as the active phase since it is the most selective of all metals investigated in the above reaction. Catalyst precursors, RuCl 3·3H 2O and NH 4VO 3, were introduced onto an unconventional support – MgF 2 and reduced in hydrogen flow at 673 K. The catalysts obtained revealed unusually high activity and selectivity in the reaction of hydrogenation of o-CNB to o-CAN, both in the gas- and liquid phase. The structural study of the Ru-V/MgF 2 catalyst has shown that its high activity and selectivity were determined by the strong metal–support interactions and ruthenium–VO x species electron interactions.
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