Synthesis of acetyl salicylic acid over WO3/ZrO2 solid superacid catalyst

被引：55

作者：

Zhang, Cun ^{[1
]}

Liu, Tao ^{[1
]}

Wang, Hong-Juan ^{[1
]}

Wang, Feng ^{[1
]}

Pan, Xiao-Yu ^{[1
]}

机构：

[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 174卷 / 01期

关键词：

Acetyl salicylic acid; Solid superacid; WO3/ZrO2; catalyst; TUNGSTATED ZIRCONIA; WOX/ZRO2; PERFORMANCE; ALKYLATION; PENTANE; BUTANE;

D O I：

10.1016/j.cej.2011.09.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Solid superacid WO3/ZrO2 was prepared by co-precipitation of an aqueous zirconyl chloride and ammonium metatungstate solution. The as-prepared catalysts were characterized by using XRD, Laser Raman spectroscopy and BET. Acetyl salicylic acid was synthesized from salicylic acid and acetic anhydride using as-synthesized WO3/ZrO2. The effects of WO3 concentration, reaction time, reaction temperature, molar ratio of reactants, as well as dosage of catalysts on synthesis of acetyl salicylic acid were investigated, and the reaction conditions were therefore optimized. The excellent yield (91.0%) of acetylsalicylic acid was obtained under optimized reaction conditions. The catalyst has been easily recovered and reused repeatedly with a consistent high yield. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：236 / 241

页数：6

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