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Studies on oxidative dehydrogenation of n‐butane on bismuth molybdate‐aluminium phosphate catalysts. I. Catalyst characterisation
Author(s) -
Shenoy Subhash C.,
Rao Musti S.
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280360302
Subject(s) - dehydrogenation , catalysis , butane , molybdate , bismuth , inorganic chemistry , chemistry , aluminium oxide , oxide , materials science , organic chemistry , metallurgy
The aim of the present investigation has been to develop a suitable catalyst for the oxidative dehydrogenation of n‐butane to butenes and 1,3‐butadiene. Preliminary experiments showed that molybdic oxide‐aluminium phosphate catalysts were effective for the dehydrogenation of n‐butane. In order to improve the activity of the molybdic oxide‐aluminium phosphate catalyst, bismuth was introduced in the catalyst, and the catalyst activity was investigated further. Three types of bismuth molybdates, Bi 2 O 3 .MoO 3 (γ‐phase), Bi 2 O 3 .2MoO 3 (β‐phase), and Bi 2 O 3 .3MoO 3 (β‐phase), were chosen to vary the Bi/Mo ratio in the catalysts. The catalysts, in turn, were characterised using X‐ray diffraction, infrared, and differential thermal analyses. These studies revealed that both Bi 2 O 3 .MoO 3 and Bi 2 O 3 .2MoO 3 , containing corner‐shared Mo‐O octahedra, are suitable catalysts for the oxidative dehydrogenation of n‐butane.