LIQUID-PHASE OZONATION OF CYCLOHEXANOL USING ACETIC-ACID AS SOLVENT

The liquid phase oxidation of cyclohexanol in an acetic acid medium using a mixture of oxygen and ozone has been studied in a laboratory semibatch reactor The influence of temperature, ozone partial pressure, initial concentration of cyclohexanol on its conversion and yield and distribution of products has been observed. Under the experimental conditions investigated formation of Peroxydic compounds and monobasic acids was not relevant; the major products obtained were cyclohexanone and adipic and glutaric acids although analytical chromatograms revealed the presence of other products unidentified. Formation of these products is qualitatively explained by means of a chain-radical mechanism. Finally, it is proposed an empirical kinetic equation which relates the variables mentioned above with the reaction rates. This equation reproduces the experimental results with desviations less than 10%.