CATALYSTS AND SUPPORTS FOR CONVERSION OF LACTIC-ACID TO ACRYLIC-ACID AND 2,3-PENTANEDIONE

被引：69

作者：

GUNTER, GC ^{[1
]}

LANGFORD, RH ^{[1
]}

JACKSON, JE ^{[1
]}

MILLER, DJ ^{[1
]}

机构：

[1] MICHIGAN STATE UNIV,DEPT CHEM ENGN,E LANSING,MI 48824

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1995年 / 34卷 / 03期

关键词：

D O I：

10.1021/ie00042a035

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The catalytic conversion of lactic acid over various sodium salt catalysts and support materials has been carried out to identify potential catalyst/support combinations for 2,3-pentanedione and acrylic acid production. Low surface area, pure silica is the best support for suppressing undesirable side reactions to acetaldehyde and propanoic acid, which are favored over high surface area (microporous) or surface acidic materials. The best catalysts for 2,3-pentanedione and acrylic acid formation are the sodium salts of group IV and group V oxides, with sodium arsenate giving a 2,3-pentanedione yield of 25% and combined selectivity to acrylic acid and 2,3-pentanedione of 83% at 300 degrees C and 0.5 MPa total pressure.

引用

页码：974 / 980

页数：7

共 14 条

[1] FORMATION OF 2,3-PENTANEDIONE FROM LACTIC-ACID OVER SUPPORTED PHOSPHATE CATALYSTS [J].