Catalytic condensation of formaldehyde and methyl formate over 12-tungstosilicic compounds

被引：35

作者：

Huang, WG ^{[1
]}

He, DH ^{[1
]}

Liu, JY ^{[1
]}

Zhu, QM ^{[1
]}

机构：

[1] Tsing Hua Univ, State Key Lab Chem Technol C1, Dept Chem, Beijing 100084, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2000年 / 199卷 / 01期

关键词：

formaldehyde; methyl formate; methyl glycolate; methyl methoxy acetate; condensation; 12-tungstosilicic acid;

D O I：

10.1016/S0926-860X(99)00553-0

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 [物理化学]; 081704 [应用化学];

摘要：

Condensation of formaldehyde and methyl formate to methyl glycolate and methyl methoxy acetate catalyzed by 12-tungstosilicic compounds has been studied. Thermal pre-treatment of 12-tungstosilicic acid has a great influence on the activity of the acid. The most preferable pre-treatment temperature is 300 degrees C in the range of 100-350 degrees C. Water has a disadvantageous effect an the condensation reaction. 12-tungstosilicic acid and its acidic salts show high activity to the reaction, but the neutral salts have little activity. The influence of acid strength has also been investigated. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：93 / 98

页数：6

共 9 条

[1]

THE PROPERTIES OF HETEROPOLY ACIDS AND THE CONVERSION OF METHANOL TO HYDROCARBONS [J].