Preparation ,Characterization and Catalytic Application of Transition Metals Ferrites

Abstract

The objectives of this research is to prepare, characterize Ni, Co, Fe – ferrite catalyst and to study the catalytic activity of the synthesized catalyst for the Friedel-crafts benzylation reaction of toluene with benzyl chloride. Three transition metals ferrites Ni, Co, Fe –ferrite were prepared and were characterized by spectroscopic techniques such as Fourier transform infrared spectroscopy (FTIR) and atomic absorption spectroscopy (AAS) and the catalytic activity of the synthesized transition metals ferrites heterogeneous catalyst for the Friedel-Crafts benzylation reaction of toluene with benzyl chloride were studied. The activity results showed that the highest conversion of benzyl chloride is 99.94% at 80 oC and 20 min reaction time, while the selectivity of bara –benzyltoluene was 83.36% and ortho- benzyltoluene 16.6% in the same temperature and reaction time. However for the type and weight of catalyst, nickel ferrite in 0.1g weight was found to be the best one for high conversion of benzylchloride and high selectivity at the same temperature and reaction time. The molar ratio 5:1 the highest conversion yield of benzylchloride of 99.01% and highest selectivity of 67.22 %at 100 oC in 10 min reaction time and 0.1g weight of catalyst.