The catalytic oxidation of phenol over CuZSM-12 (SAR=200) has been studied using a semi-batch slurry reactor at temperatures of 110, 120 and 130 degrees C, and acidic neutral and basic pH. At 130 degrees C, the phenol undergoes total conversion to carbon dioxide and water in 1.5 h. The kinetic parameters were evaluated using a modified homogeneous-heterogeneous model for the experimental data. Using this modified model, the activation energy for the catalytic oxidation process was ca. 90 kJ mol(-1).