Formation of citraconic anhydride by vapor-phase decarboxycondensation of pyruvic acid

被引：0

作者：

Ai, M ^{[1
]}

Ohdan, K ^{[1
]}

机构：

[1] UBE IND LTD,UBE LAB,UBE,YAMAGUCHI 755,JAPAN

来源：

11TH INTERNATIONAL CONGRESS ON CATALYSIS - 40TH ANNIVERSARY, PTS A AND B | 1996年 / 101卷

关键词：

D O I：

暂无

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：

Citraconic anhydride (Methyl maleic anhydride) was found to be produced from pyruvic acid by an oxidative decarboxy-condensation. The best catalyst is iron phosphate with a P/Fe atomic ratio of 1.2. The presence of oxygen is required to promote the reaction. The main side-reaction is formation of acetic acid and CO2 by oxidative C-C bond fission. The best results are obtained at a temperature of 200 degrees C. The yield of citraconic anhydride reaches 71 mol% at a pyruvic acid conversion of 98%.

引用

页码：201 / 209

页数：9

共 11 条

[1] FORMATION OF PYRUVIC-ACID BY OXIDATIVE DEHYDROGENATION OF LACTIC-ACID [J].