Synthesis of 3-buten-2-one from 4-hydroxy-2-butanone over anatase-TiO2 catalyst

被引：26
|
作者：
Ichikawa, N
Sato, S [1 ]
Takahashi, R
Sodesawa, T
机构：
[1] Chiba Univ, Fac Engn, Dept Appl Chem, Chiba 2638522, Japan
[2] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan
来源：
CATALYSIS COMMUNICATIONS | 2005年 / 6卷 / 01期
关键词：
D O I：
10.1016/j.catcom.2004.10.004
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：
Dehydration of 4-hydroxy-2-butanone (HB) to 3-buten-2-one (MVK) was investigated. Anatase-TiO2 exhibited excellent activity for the dehydration of HB with 98.8 mol% MVK yield. The highest activity was obtained at 160 degreesC, and deactivation was rarely observed over anatase-TiO2. HB decomposes into propanone above 240 degreesC, and the MVK selectivity decreases with increasing temperature. High acidity of catalysts causes deactivation because of strong interaction between MVK and acid sites that induces polymerization. Weak acid sites are efficient for the dehydration of HB to MVK. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：19 / 22
页数：4
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