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ժҪ �õ��ӷ��(ICP)��X��(XRD)��NH3��Ѹ�(NH3-TPD)��˸��H�·�ʯ��ѧ��,��Mn��Ce��H�·�ʯ�ԶԼ׷�-�춡ϩ��Ӧ�Ĵ߻��,��̽��Mn��H�·�ʯ�߻��¶ȡ�ԭ��Ħ��ȺͿ��ٶ��Ӧ��Ӱ�졣�о��,��Mn��H�·�ʯ�Ĵ߻��ԺͲ��ѡ��,��ѷ�Ӧ��Ϊ��Ӧ�¶�Ϊ125��,n(�춡ϩ)��n(�Լ׷�)=3��1,��Ϊ2 h-1��Mn��H�·�ʯ�ǶԼ׷�-�춡ϩ��Ӧ��п��ǰ��Ĵ߻��

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Abstract�� The physical chemistry properties of catalysts were characterized by ICP,XRD and NH_3-TPD,alkylation of p-cresol with isobutylene over �� zeolite modified by Mn and Ce was carried out and the catalytic activity of the zeolite was investigated.And the influences of reaction temperature,molar ratio of isobutylene/p-cresol and WHSV were analyzed.The result indicated that the catalytic activity of the �� zeolite modified by Mn and the selectivity of 2-tert-butyl-4-methy-phenol are improved,the optimized condition are reaction temperature of 125 ��,molar ratio of isobutylene/p-cresol of 3,WHSV of 2 h~(-1).�� zeolite modified by Mn is a promising catalyst for alkylation of p-cresol with isobutylene.

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Received 2007-05-15; published 2007-05-15

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��ķ�;��;��;��;.��H�·�ʯ�϶Լ׷��춡ϩ��Ӧ[J]. ��ѧ��ҵ�빤��, 2007,24(3): 254-257

LI Wen-feng,WANG Qian,DONG Yan-fei,QI Xin.Alkylation of p-Cresol with Isobutylene Over Modified �� Zeolite[J]. Chemcial Industry and Engineering, 2007,24(3): 254-257