| 摘要 |
PURPOSE:To obtain p-xylene at a low cost by the oxidative dehydrogenation cyclization of isobutylene with O2 in the presence of a catalyst produced by adding B, P, S, Ti, etc., to an Mo-Bi-Fe system and supporting the obtained-O- containing composition on a carrier consisting of a silica-alumina and/or zeolite. CONSTITUTION:p-Xylene can be produced at a low cost by the oxidative dehydrogenation cyclization of isobutylene with molecular oxygen in the presence of a catalyst having a composition of formula (X is one or more elements selected from B, P, S, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, etc.; a to e are atomic ratio of each element and, when a=1, b=0.01-5, c=0.1-10, d=0-10 and e corresponds to the atomic valence of the above each component) and supported on a carrier consisting of a silica-alumina and/or a zeolite. |
