SOLID CATALYST TREATED WITH ANION .18. BENZOYLATION OF TOLUENE WITH BENZOYL CHLORIDE AND BENZOIC ANHYDRIDE CATALYZED BY SOLID SUPERACID OF SULFATE-SUPPORTED ALUMINA

被引：191

作者：

ARATA, K ^{[1
]}

HINO, M ^{[1
]}

机构：

[1] HAKODATE TECH COLL, HAKODATE 042, JAPAN

来源：

APPLIED CATALYSIS | 1990年 / 59卷 / 02期

关键词：

D O I：

10.1016/S0166-9834(00)82197-1

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：

A solid superacid catalyst with an acid strength of -16.04≫Ho≤ -14.52 was obtained by exposing γ-Al2O3 to 2.5 M H2SO4 followed by calcining in air at 550-650°C. The catalyst was active for the benzoylation of toluene with benzoyl chloride or benzoic anhydride in a heterogeneous system. Specific surface area of the catalyst was much smaller than that of the oxide which had not undergone the sulfate treatment. X-ray photoelectron spectroscopy (XPS) showed the catalyst surface to be composed of SO2-4 and Al2O3. It is suggested that the benzoylation was performed on Brønsted sites created by adsorption of water on Lewis sites of the catalyst. © 1990.

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页码：197 / 204

页数：8

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