Preparation of supported iron-containing catalysts from a FeSo4 solution: The effect of the support

The iron compounds resulting from the impregnation of the most common supports—alumina and silica gel-with an aqueous FeSO4 · 7H2O solution and subsequent heat treatment in air are identified by thermal analysis and Mossbauer spectroscopy. The state of the active component of the iron-containing catalysts depends strongly on the nature of the support.