Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Oxidation Behavior of Vanadyl Pyrophosphate as a n-Butane Oxidation Catalyst
Ikuya MatsuuraKiyomi YoshidaAtsuhito Mori
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1987 Volume 16 Issue 3 Pages 535-538

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Abstract

(VO)2P2O7 is oxidized to β-VOPO4 via β′-phase (d = 4.87, 4.23, 3.19, 2.64 Å) which was probably a phosphate such as VPO4.75 containing vanadium in the average oxidation state of + 4.5. However, when excess phosphorus is present in (VO)2P2O7, oxidation stops at the stage of β′-phase. This suggests that the new phase, β′-VPO4.75, is a selective catalyst for n-butane oxidation to maleic anhydride.

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