Supported Pt–colloid catalysts for the selective hydrogenation of 3,4-dichloronitrobenzene
Abstract
Pre-prepared Pt hydrosols stabilized by surfactants may be used as precursors for heterogeneous hydrogenation catalysts active in the selective high-pressure transformation of 3,4-dichloronitrobenzene to the corresponding aniline. The catalytic performance of the new systems was evaluated in batchwise and continuous tests and the results are compared to conventional Pt/C systems.