采用无水三氯化铝与多卤代烷组成的配合物催化体系，研究了以C₁₄、C₁₆、C₁₈、C₂₀~C₂₄、C₂₀~C₂₈直链α-烯烃和混合二甲苯为原料合成系列长链烷基二甲苯的同分异构体或同系物，采用正交试验方法研究各个因素对反应的影响，确定较佳反应条件为：反应温度（滴加烯烃时的体系温度）40℃，反应时间60 min，催化剂用量占体系总质量的1/100，混合二甲苯/烯烃物质的量之比为4.0。在此条件下，利用30 L反应器进行了放大实验，烯烃的转化率达到100%，长链烷基二甲苯的收率达到92.95%~98.71%，长链烷基二甲苯的选择性达99%以上，工业放大生产了15 000余吨产品。

A series of long chain alkyl xylene isomers or homologues are synthesized by reacting mixed xylene with C₁₄,C₁₆,C₁₈,C₂₀-C₂₄,and C₂₀-C₂₈ straight chain α-olefins respectively,and using a complex catalyst system composing of anhydrous aluminum chloride and polyhalogenated alkane.Othogonal test method is used to study the effect of various factors on the reaction,the better reaction conditions are determined as follows:the reaction temperature is at 40℃ when olefins is adding in,reaction lasts for 60 min,catalyst dosage is 1/100 of total system mass,and the molar ratio of mixed xylene to olefin is 4.0.Under these conditions,the amplification experiment is carried out in a 30-L reactor,in which the conversion rate of olefin reaches 100%,the yield and selectivity of long chain alkyl xylene reaches 92.95%-98.71% and 99% or more,respectively.More than 15 000 tons of products are produced in industrial amplification.

闫磊(1984-),男,博士,讲师,从事油田化学剂合成和应用研究,dqpiyl@126.com