甲苯和丙烯选择烃化合成低邻位异丙基甲苯

根据分子筛择形催化剂催化合成对／间位异丙基甲苯的研究结果，并结合现有工业生产装置的实际情况，对工业上采用分子筛催化生产异丙基甲苯工艺方案进行探讨。提出合成对／间异丙基甲苯新工艺流程，并做了有关工艺计算和初步经济分析。

Synthesis of cymenes with low ortho-isomer by selective alkylation of toluene and propene

ased on the study results of para/meta-cymenes synthesis over shape-selective catalyst of molecular sieve and on the actual situation of existing commercial plants, process schemes for indusurial production of cymenes using molecular sieve catalysts are discussed and thus a new process is proposed for synthesis of para/meta-cymenes. Essential calculations and preliminary economical analysis are made for the assumed process.