Phase Equilibria and Butane Oxidation Studies of the MgO-V2O5-MoO3 System

W. D. Harding, Harold H Kung, V. L. Kozhevnikov, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Phase relations in the magnesium oxide-rich corner of the system MgO-V2O5-MoO3 were studied. A new compound, Mg2.5VMoO8, was discovered. The solubility limit of molybdenum oxide in magnesium orthovanadate Mg3-xV2-2xMo2xO8 was found to be x ∼ 0.03. Butane oxidation studies of oxides with compositions along the pseudobinary line Mg3V2O8-Mg2.5VMoO8 -MgMoO4 were investigated. All the compositions studied maintain the high catalytic dehydrogenation selectivity of the magnesium orthovanadate which is attributed to the similarities of vanadium environment in Mg2.5VMoO8 and Mg3V3O8. Incorporation of molybdenum oxide in the orthovanadate results mainly in an increase of cracking products.

Original languageEnglish
Pages (from-to)597-610
Number of pages14
JournalJournal of Catalysis
Volume144
Issue number2
DOIs
Publication statusPublished - Dec 1993

Fingerprint

Molybdenum oxide
molybdenum oxides
Vanadates
Butane
butanes
Phase equilibria
Magnesium
magnesium
Oxidation
oxidation
magnesium oxides
Magnesia
Dehydrogenation
dehydrogenation
Chemical analysis
Magnesium Oxide
Vanadium
vanadium
solubility
Solubility

ASJC Scopus subject areas

  • Process Chemistry and Technology
  • Catalysis

Cite this

Phase Equilibria and Butane Oxidation Studies of the MgO-V2O5-MoO3 System. / Harding, W. D.; Kung, Harold H; Kozhevnikov, V. L.; Poeppelmeier, Kenneth R.

In: Journal of Catalysis, Vol. 144, No. 2, 12.1993, p. 597-610.

Research output: Contribution to journalArticle

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