文献类型：专利

英文题名：Process for preparing isopropyl benzene by catalytically hydrogenolysis alpha, alpha dimethyl benzyl alcohol

作者：LU G;LIU X;WANG Y

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1308273-C

公开日：2007-04-04

语种：英文

收录：DERWENT

摘要：NOVELTY - The present invention hydrogenolyzes alpha, alpha-dimethyl benzyl alcohol in solvent into isopropyl benzene with hydrogen or organic compound as hydrogen source at reaction temperature of 30-100 deg.cunder multiphase Pd base catalyst. The present invention has alpha, alpha-dimethyl benzyl alcohol converting rate greater than 96 % and isopropyl benzene selectivity greater than 99 %. The said process may be used in the hydrogenolysis of alpha, alpha-dimethyl benzyl alcohol as the co-product of propylene epoxidation process to prepare propylene oxide with cumene hydroperoxide as oxidant to realize circular utilization of isopropyl benzene. The said technology may be used in recovering propylene from tail gas generated in the process of producing propylene chloride or polypropylene, and may be also used in the propylene oxide producing line.