文献类型：期刊文献

英文题名：Study on Activated Bentonite Applied to tert-Butylation of Toluene

作者：Chen Linbo[1];Shi Li[1]

机构：[1]E China Univ Sci & Technol, Dept Petr Proc, Shanghai 200237, Peoples R China

年份：2011

卷号：13

期号：1

起止页码：38

外文期刊名：CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000290704800007)】；

语种：英文

外文关键词：t-butylation; activated bentonite; p-tert-butyltoluene; pore diameter; Lewis acid

摘要：tert-Butylation of toluene with tert-butanol used as the alkylating agent was investigated over the activated bentonite and HY zeolite used as the catalyst. The influences of various butylation reaction parameters, including the toluene/tert-butanol ratio, the reaction temperature, and the space velocity were discussed. The optimal results were obtained at a reaction temperature of 180 degrees C, a space velocity of 4 h(-1), and a mole ratio of toluene to tert-butanol equating to 2. The structure and acidic properties of catalyst were characterized by the BET method and the Fourier transform infrared (FTIR) spectroscopy. Compared with the HY zeolite, the activated bentonite possessed high activity for toluene conversion and high para-selectivity because it had larger pore diameter, smaller micropore surface area and higher ratio of total Lewis acids to total Bronsted acids.