Title: Phenol Methylation with Methanol over Modified HZSM-5
Abstract: The reaction of phenol methylation with methanol over modified HZSM-5 with P2O5,MgO,Sb2O3 was investigated at the reaction temperature of 673K,phenol/methanol(molar ratio) of 1:1,and WHSV of 05 h-1.The modification of HZSM-5 with P2O5,MgO,and Sb2O3 could increase the selectivities to anisole and methylanisole.However,it decreases the selectivities to Xylenol and Cresol in the reaction.Increasing the amount of those oxides could enhance the selectivity to o-Cresol.Moderate impregnation of those oxides could improve the selectivity to p-Cresol in the reaction and the effects had the sequence:Sb2O3P2O5MgO.
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
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