AN UNUSUAL SUPPRESSION OF TRIMETHYLAMINE FORMATION IN THE HIGH-TEMPERATURE ALKYLATION OF AMMONIA WITH METHANOL OVER (NH4)3PW12O40

被引:6
|
作者
NASIKIN, M
NAKAMURA, R
NIIYAMA, H
机构
[1] TOKYO INST TECHNOL, INT COOPERAT CTR SCI & TECHNOL, OOKAYAMA, MEGURO KU, TOKYO 152, JAPAN
[2] TOKYO INST TECHNOL, FAC ENGN, DEPT CHEM ENGN, MEGURO KU, TOKYO 152, JAPAN
关键词
D O I
10.1246/cl.1993.209
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A synthesis of methylamines from ammonia and methanol was studied by using mainly the title heteropoly catalyst. Although at low temperatures below ca. 750 K the three methylamines (MMA, DMA, and TMA) were formed as usual, at higher temperatures the formation of TMA was completely suppressed. This unusual product selectivity was explained by the strong adsoption of TMA to the catalyst.
引用
收藏
页码:209 / 212
页数:4
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