Selective disproportionation of toluene, and a method and c9 and disproportionation and transalkylation of aromatic hydrocarbons in the method of the toluene c9 +

摘要

The present invention relates to a selective disproportionation method and toluene and C ₉ and disproportionation and transalkylation method of C ₉⁺ aromatic hydrocarbons of the toluene, the method of the present invention is a high circulation of the aromatic waste, high energy consumption, and natural materials It solves the problems of the prior art such as the stringent requirements for. In the present invention, toluene selectively is disproportionation with a high concentration of p - for mixed xylenes, including xylene and toluene and C ₉ and C ₉⁺ aromatic hydrocarbons is disproportionation and transalkylation in the thermodynamic equilibrium produces a mixture of benzene and xylene, may be overcome by the problems mentioned above. These methods may be carried out on a commercial scale.