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H_3PO_4/MCM-41催化苯酚与叔丁醇气相烷基化反应(英文) 被引量:7
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作者 Mehran GHIACI 《催化学报》 SCIE EI CAS CSCD 北大核心 2010年第7期759-764,共6页
The catalytic performance of Al-MCM-41 containing 5-35 wt% H3PO4 was studied for the vapor phase alkylation of phenol with tert-butyl alcohol(TBA) from 383 to 493 K.4-Tert-butyl phenol was produced as the main product... The catalytic performance of Al-MCM-41 containing 5-35 wt% H3PO4 was studied for the vapor phase alkylation of phenol with tert-butyl alcohol(TBA) from 383 to 493 K.4-Tert-butyl phenol was produced as the main product with moderate selectivity.The product distribution depends on the reaction temperature,number of acid sites,and the Brnsted to Lewis sites ratios.A lower molar ratio of reactants(TBA/phenol = 2) and a higher space velocity facilitated the production of 4-tert-butyl phenol.The influence of various parameters such as temperature,reactant feed molar ratio,feed rate,and time on stream were investigated for conversion yield and product selectivity. 展开更多
关键词 ALKYLATION TERT-BUTYLATION PHENOL tert-butyl alcohol MCM-41
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