Kinetics and mechanism of oxidation of n-butenes over SnO2Sb2O4 catalysts

K. Hernádi, J. Halász, K. Varga, I. Marsi, P. Fejes

Research output: Contribution to journalArticle

3 Citations (Scopus)


Over Sn:Sb=3:l catalyst at 423-673 K the kinetics of oxidation and isomerization of 1-butene and cis- and trans-2-butene have been studied in a recirculatory batch reactor. The oxygen uptake of the catalysts was determined with a microbalance and kinetic parameters of oxidation were calculated. Comparison of the oxidation of the n-butenes demonstrates that both the conversion and the selectivity for butadiene are much lower in the reaction of both 2-butenes than in the oxidation of 1-butene. Since the double-bond isomerization (taking place over the Brönsted-type acidic sites of the catalyst) is a much slower reaction even at higher reaction temperatures, it was supposed that the only reaction step yielding butadiene is 1-butene→butadiene on an oxidation site.

Original languageEnglish
Pages (from-to)361-370
Number of pages10
JournalJournal of molecular catalysis
Issue number3
Publication statusPublished - Dec 15 1990

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Kinetics and mechanism of oxidation of n-butenes over SnO<sub>2</sub>Sb<sub>2</sub>O<sub>4</sub> catalysts'. Together they form a unique fingerprint.

  • Cite this