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Selective oxidation of cyclohexane to cyclohexanol and cyclohexanone is an industrially important chemical reaction for manufacture of caprolactam, nylon and other products.Cyclohexanol and cyclohexanone should be separated from the reactor to avoid further secondary reaction.Polyethylene glycol (PEG) polymer material was selected for pervaporation of cyclohexanol/cyclohexane mixture according to the solubility parameter method.