Study of the selectivity of a V2O5-ZrO2 catalyst for partial oxidation of o-xylene at high temperatures

Authors
Makedonski, L Nikolov, V Nikolov, N Blaskov, V
Citation
L. Makedonski et al., Study of the selectivity of a V2O5-ZrO2 catalyst for partial oxidation of o-xylene at high temperatures, REACT KIN C, 66(2), 1999, pp. 237-243
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
REACTION KINETICS AND CATALYSIS LETTERS
ISSN journal
01331736 → ACNP
Volume
66
Issue
2
Year of publication
1999
Pages
237 - 243
Database
ISI
SICI code
0133-1736(199903)66:2<237:SOTSOA>2.0.ZU;2-B
Abstract
It has been established that at high temperatures (above 450 degrees C) the V2O5-ZrO2 catalyst exhibits a higher selectivity in the oxidation of o-xyl ene to phthalic anhydride than does the conventional V2O5-TiO2(a) catalyst. The catalyst selectivity is found to increase with respect to partial oxid ation of o-xylene, the valuable by-product maleic anhydride being obtained. Studies by different physicochemical methods have shown that V2O5-ZrO2 und ergoes no significant phase and structural changes under high-temperature c onditions.