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Chemcial Industry and Engineering 2003, Vol. 20 Issue (5) :282-285    DOI:
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Phenol Methylation with Methanol over Modified HZSM-5
HAN Sen��1,ZHANG Kui��1,ZHANG Fu-ying��2��emical Engineering,Tianjin University,Tianjin 300072,China;��2.NanKai University Library,Tianjin 300071,China)����

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Abstract The reaction of phenol methylation with methanol over modified HZSM-5 with P��2O��5,MgO,Sb��2O��3 was investigated at the reaction temperature of 673K,phenol/methanol(molar ratio) of 1:1,and WHSV of 0��5 h����-1��.The modification of HZSM-5 with P��2O��5,MgO,and Sb��2O��3 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:Sb��2O��3>P��2O��5>MgO.����
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Received 2003-09-15; published 2003-09-15
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HAN Sen��1,ZHANG Kui��1,ZHANG Fu-ying��2��emical Engineering,Tianjin University,Tianjin 300072,China;��2.NanKai University Library,Tianjin 300071,China)����.Phenol Methylation with Methanol over Modified HZSM-5[J]  Chemcial Industry and Engineering, 2003,V20(5): 282-285
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