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Partial oxidation of o ‐xylene in melts containing vanadium pentoxide
Author(s) -
Satterfield Charles N.,
Loftus Jordan
Publication year - 1965
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690110626
Subject(s) - pentoxide , vanadium , chemistry , inorganic chemistry , catalysis , eutectic system , xylene , vanadium oxide , potassium , benzene , sulfate , organic chemistry , alloy
o ‐Xylene vapor in nitrogen was partially oxidized by bubbling it through a melt of the 39 wt. % vanadium pentoxide‐potassium sulfate eutectic at temperatures from 528° to 598°C. The principal product was o ‐tolualdehyde; some benzene and traces of phthalide were formed but no organic acids. These products are similar to those found in o ‐xylene oxidation over a solid vanadium oxide catalyst, except for the absence of acid products but are far different from the product distribution found from homogeneous oxidation with air. The rate of reaction per unit of gas‐melt interface was approximately equal to that reported for oxidation of o ‐xylene in air on an unsupported fused vanadium oxide catalyst. With o ‐xylene‐air mixtures bubbled through either a vanadium pentoxide‐potassium sulfate eutectic melt or vanadium pentoxide‐potassium pyrosulfate melt, homogeneous reaction obscured any contribution from heterogeneous processes.