| 摘要 |
An integrated process of preparing a C2-5 alkenyl-substituted aromatic compound using a C6-12 aromatic compound and a C2-5 alkane as raw materials. The process involves two reaction steps operating in tandem, the first reaction step reacts the C6-12 aromatic compound with hydrogen chloride and molecular oxygen in the presence of a catalyst to yield water and mono-, di-, tri-, and higher chlorinated aromatic adducts. The chlorinated compounds from the first reaction step are reacted with ethane in the second reaction step to produce alkane-substituted aromatic compounds which spontaneously dehydrogenate to an alkenyl-substituted aromatic compound and hydrogen chloride. After separating the alkenyl-substituted aromatic product from the hydrogen chloride, the hydrogen chloride is recycled to the first reaction step so that there is no net production or consumption of hydrogen chloride.
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