IRON MOLYBDATE CATALYST STABILIZED BY CALCIUM OXIDE FOR METHANOL TO FORMALDEHYDE CONVERSION

被引：8
|
作者：
Kostynyuk, Andrew [1 ]
Nikolenko, Mykola [1 ]
机构：
[1] Ukrainian State Univ Chem Engn, 8 Gagarin Av, UA-49005 Dnepropetrovsk, Ukraine
来源：
CHEMISTRY & CHEMICAL TECHNOLOGY | 2011年 / 5卷 / 01期
关键词：
iron molybdate catalysts; catalysis; methanol selective oxidation; formaldehyde; inert; calcium oxide;
D O I：
10.23939/chcht05.01.089
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Regularities of methanol oxidation by atmospheric oxygen on the catalyst Fe-2(MoO4)(3)/MoO3/CaO = = 1 : 0.7 : 0.3 have been studied. It was found that the speed of the process in a model flow reactor obeys the first order equation with the observed rate constant of 1.0 sec(-1) and the apparent activation energy of 65 kJ/mol. It was established that the selectivity of formaldehyde in the process with once- through conversion over 45 % sharply decreases. The mechanism of alcohols heterogeneous catalytic oxidation, including the stages of organic compounds interaction both with metal cations and oxygen atoms of the catalyst surface was suggested.
引用
收藏
页码：89 / 93
页数：5
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