Reduction of titanium—antimony oxides in hydrogen and in carbon monoxide

Abstract

The reduction of coprecipitated titanium-antimony oxides by hydrogen and carbon monoxide has been investigated. The results show that the selective oxidation of hydrogen or carbon monoxide by antimony in titanium-antimony oxides is dependent on the temperature, the nature of the matrix and the extent of catalyst reduction. The oxidation of hydrogen, as compared to carbon monoxide, at moderate temperatures is strongly favoured by solids composed of low concentrations of antimony in the rutile lattice and subjected to limited overall reduction. The results may be associated with the use of such materials as selective hydrocarbon oxidation catalysts.