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Abstract

Nylon 6 or polycaprolactam is the most widely used polymer, which is gained by the polymerization of monomer caprolactam resulting from the innovation of cyclohexanone oxime. Cyclohexanone-oxime is achieved by the reaction of hydroxyl-amine and cyclohexanone-oxime. This reaction is subject to parameters such as temperature, amount of raw materials, catalyst, and reaction time, which affect the reaction efficiency. We add an oxidizing agent, such as hydrogen peroxide, to the reaction medium through the reaction of ammonia and cyclohexane in the presence of an aluminum silicate catalyst, and oxidize the ammonia in the reaction environment after the progress of the reaction; so the reaction of cyclohexanone leads to the progress of the reaction, which is the formation of oxime. This research tried to increase the production efficiency of this material by investigating the factors of the catalytic production of cyclohexanone oxime. This reaction was investigated using different catalysts, including aluminum silicate and titanium oxide catalysts, in different reaction conditions for the production of cyclohexanone oxime. The results show the production of cyclohexanone oxime with an efficiency of 90.54% in the conditions of 0.294 moles of ammonia, 0.176 moles of hydrogen peroxide, 0.178 moles of cyclohexanone, at a temperature of 72 to 75 °C and 1% catalyst. Aluminum silicate catalyst showed the best efficiency in the production of cyclohexanone oxime‎.