Abstract
Solid heterogeneous CuO-MoO3/ZrO2 catalyst was prepared by impregnation using suitable precursor materials supported over zirconia. Upon calcination at 450°C for 2 hours, available techniques were employed for the characterization. The available oxides and minerals in the catalyst were revealed by the XRF and XRD profiles respectively. The catalyst crystallite size (131.6nm) was obtained using the Bragg’s equation from the latter. Thermal analysis showed three weight loss stages between (49.25-152.06°C), (152.06-559.47°C) and (559.47-752.0°C) while presence of sulphate and zirconia oxides was revealed by the FTIR analysis due to appearance of absorption bands around 1225-980cm-1 and 700-600 cm-1 respectively.
Highlights
Homogeneous and heterogeneous catalysis are the broad categories which catalysis is divided into, and benzene alkylation has been carried out by both methods
A solid catalyst is used for vapour or liquid phase reactions
The result obtained from catalyst characterization is presented in the following Tables 1-4 and Figures 1-2
Summary
Homogeneous and heterogeneous catalysis are the broad categories which catalysis is divided into, and benzene alkylation has been carried out by both methods. The result of XRD analysis of the prepared catalyst presented in Table 1 indicated the presence of two principal minerals; Baddeleyite (42%) and Bonattite (58%). The principal mineral components in the catalyst precursor are ZrO2 (as shown by Tables 1 and 4) and hydrated copper sulphate (CuSO4.3H2O); constituting up to 42% of the solid catalyst; which agrees with Zhang et al [8], that up to 40wt % of the support can be employed.
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