| 초록 |
Cyclohexanone is generally produced by dehydrogenation reaction of cyclohexanol. Cyclohexanone is important intermidate for the manufacture of caprolactam which is monomer of nylron. Until now, several oxidation of alchols are produced by a large peracid as oxidant. However, peracid has many disadvantages such as expensive, hazardous, and acid waste. Recently, the catalytic oxidation of alchols using hydrogen peroxide has received much attention from the viewpoint of green chemistry. Therefore hydrogen peroxide is an ideal oxidant for oxidation reactions because of its ease of handling and high activity as oxidant, as well as the fact that byproduct is natural product, namely water. In this study, to develop catalysts for dehydrogenation of cyclohexanol, dehydrogenation of cyclohexanol and H2O2 as oxidant were carried out. Also a series of Sb/WO3 were successfully synthesized. These catalysts show different activities for 6 hours. In particular, Among series of Sb/WO3, Sb/WO3 10 wt% 400 oC shows best catalytic activity in dehydrogenation reaction because of calcination effect and Sb content effect. Therefore calcination effect and Sb content effect are both important to dehydrogenation of cyclohexanol at amseries of Sb/WO3. |
