Clarification of the role of Sb-Mo-O oxide phases in the synergetic effects between MoO3 and alpha-Sb2O4 in catalytic selective oxidation of hydrocarbons

Authors
Gaigneaux, EM Ruiz, P Delmon, B
Citation
Em. Gaigneaux et al., Clarification of the role of Sb-Mo-O oxide phases in the synergetic effects between MoO3 and alpha-Sb2O4 in catalytic selective oxidation of hydrocarbons, REV RO CHIM, 44(11-12), 1999, pp. 1061-1065
Citations number
11
Categorie Soggetti
Chemistry
Journal title
REVUE ROUMAINE DE CHIMIE
ISSN journal
00353930 → ACNP
Volume
44
Issue
11-12
Year of publication
1999
Pages
1061 - 1065
Database
ISI
SICI code
0035-3930(199911/12)44:11-12<1061:COTROS>2.0.ZU;2-
Abstract
Sb-Mo-O oxide phases, namely Sb2MoO6 and a mixture of Sb2Mo10O31 and Sb4Mo1 0O31, are not at the origin of the cooperation between MoO3 and alpha-Sb2O4 in the selective oxidation of isobutene. Their initial selectivity to meth acrolein is weak and they decompose spontaneously during the reaction to si mple Mo and Sb oxides. The consequence of the decompositon is an improvemen t of the catalytic performances.