Effect of Calcinated Temperature on the Performance of Nickel Supported on Active Carbon Catalyst for Hydrogenation of p-Nitro phenol to p-Amino phenol

Abstract

The catalytic hydrogenation of p-nitro phenol to produce p-amino phenol was carried out over the catalyst nickel supported on active carbon. The calcinated temperature was one of the most important technical conditions: temperature higher than 450 ºC would result in the reduction of NiO to Ni phase by activated carbon and the loss of support. The surface area and nickel dispersion over catalyst decreased obviously after 450 ºC calcinated temperature because of the loss of support and the Ni phase sintering.