BENZOYLATION OF BENZENE TO BENZOPHENONE OVER ZEOLITE CATALYSTS

被引:37
作者
SINGH, AP
BHATTACHARYA, D
机构
[1] Catalysis Division, National Chemical Laboratory, Pune
关键词
BENZOYLATION OF BENZENE; PREPARATION OF BENZOPHENONE; ZEOLITE BETA;
D O I
10.1007/BF00813227
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
The liquid phase benzoylation of benzene with benzoyl chloride (BOG) to benzophenone is catalyzed by various zeolites at 353 K. Zeolite H-beta is found to be more active than the other zeolites. The conversion of benzoyl chloride to benzophenone over H-beta increases significantly with increase in the reaction time, temperature, catalyst/BOC (wt/wt) and benzene/BOC (mole) ratios. The yield of benzophenone decreases with increase in SiO2/Al2O3 ratio and isomorphous substitution of Al- by Ga- and Fe- in zeolite H-Al-beta in the following order: Al- > Ga- > Fe-H-beta suggesting that high density of acidic centers along with strong acid sites are required for the reaction.
引用
收藏
页码:327 / 333
页数:7
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