Selective synthesis of acrylonitrile from acetonitrile and methanol over manganese modified Ba/ZrO₂ catalysts

Abstract

A series of different Mn loaded catalysts based on Ba/ZrO₂ have been prepared by impregnation methods and characterized by XRD, CO₂-TPD, SEM, XPS, and nitrogen physorption. Compared with the Ba_0.5/ZrO₂ catalysts, the manganese modified Ba_0.5/ZrO₂ has a BaMnO₃ phase a similar surface area, more basicity and smaller particle size. For the synthesis of acrylonitrile

from acetonitrile and methanol, the effects of Mn loading, reaction temperature and reaction time on the catalytic properties of Ba_xMn_y/ZrO₂ , have been studied. At the optimum reaction conditions, the conversion of acetonitrile and selectivity of acrylonitrile and of acetonitrile respectively.