Partial oxidation of p-tert butyl toluene to p-tert butyl benzaldehyde

被引:11
作者
Chen, M [1 ]
Zhou, RX [1 ]
Zheng, XM [1 ]
机构
[1] Zhejiang Univ, Inst Catalysis, Hangzhou 310027, Peoples R China
关键词
partial oxidation reaction; p-tert butyl benzaldehyde; catalyst;
D O I
10.1016/S0926-860X(02)00530-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, studies of V-Cs-Cu and V-Cs-Cu-TI catalysts used in the partial oxidation of p-tert butyl toluene to p-tert butyl benzaldehyde are reported. The two series of catalysts are prepared by an impregnation method. The effects of temperature, space velocity, concentration, ratio of O-2/p-tent butyl toluene and the stability of catalysts are examined. The results indicate that both the catalysts show good catalytic activity in partial oxidation of p-tert butyl toluene to p-tert butyl benzaldehyde; but the series of V-Cs-Cu-Tl catalysts exhibit more excellent catalytic activity. Under the reaction conditions of space velocity at 10,000 h(-1) and temperature at 440 degreesC, the conversion of p-tert butyl toluene can reach 12 mol% and the selectivity of p-tert butyl benzaldehyde is 85 mol%. In addition, the good stability in the series of V-Cs-Cu-TI catalysts is another important character: the catalytic activity still remained significant after stability test for 365 h. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码:329 / 334
页数:6
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