The oxidation of typical solvents present in air has been investigated over oxidic catalysts. The results show that the formation of partially oxidized intermediates generally takes place. In the case of the post-combustion of isopropanol, acetone and butyl acetate the kinetics of the production of such intermediates can be quantified by the use of simple reaction networks and appropriate rate equations. In this way, pitfalls in the dimensioning of reactors with integrated regenerative heat exchange may be avoided.