Gas-phase carbonylation of dimethoxymethane to methyl methoxyacetate over the Cs2.5H0.5PW12O40 catalyst

被引：6

作者：

Badmaeva, S. D. ^{[1
,2
]}

Potemkin, D. I. ^{[1
,2
]}

Pechenkin, A. A. ^{[1
,2
]}

Volkova, G. G. ^{[1
]}

Sobyanin, V. A. ^{[1
,2
]}

Parmon, V. N. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Pr Akad Lavrenteva 5, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia

来源：

DOKLADY PHYSICAL CHEMISTRY | 2016年 / 468卷

关键词：

Catalyst selectivity - Gases - Methanol;

D O I：

10.1134/S0012501616060014

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：

It has been shown that cesium hydrogen phosphotungstate Cs2.5H0.5PW12O40 is a promising catalyst of the gas-phase carbonylation of dimethoxymethane (DMM) to methyl methoxyacetate (MMA). This catalyst provided the MMA selectivity and yield of 54% and 40%, respectively, under mild experimental conditions: T = 110A degrees C, P = 10 bar, and GHSV = 6000 h(-1) for DMM/CO/Ar = 4/76/20 mol/mol/mol. The carbonylation of DMM to MMA is accompanied by side reactions of DMM disproportionation into dimethyl ether (DME) and methyl formate (MF), as well as by secondary side reactions of MF decomposition into methanol and CO and methanol dehydration into DME.

引用

页码：85 / 88

页数：4

共 6 条

[1] Hydration of dimethyl ether to methanol over solid acids [J].