Formation Pathway of By-products in Methacrolein Oxidation over H3PMo12O40 Investigated by Using 13C-Labeled Methacrolein

Understanding the mechanism for the formations of by-products as well as a main product can give us useful information for improvement in the catalytic performances. In the present study, formation pathway of by-products in oxidation of methacrolein (MAL) was investigated by using MAL with 13C-label...

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Veröffentlicht in:	Journal of the Japan Petroleum Institute 2023/07/01, Vol.66(4), pp.128-131
Hauptverfasser:	Kanno, Mitsuru, Hirata, Jun, Umezawa, Taiki, Ninomiya, Wataru, Kamiya, Yuichi
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	Acetic acid By-products Byproducts Heteropoly acid Isotopic labeling method Methacrolein oxidation Oxidation Reaction mechanism
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Beschreibung
Zusammenfassung:	Understanding the mechanism for the formations of by-products as well as a main product can give us useful information for improvement in the catalytic performances. In the present study, formation pathway of by-products in oxidation of methacrolein (MAL) was investigated by using MAL with 13C-labeled methyl group as a reactant. The reaction pathway for the formation of the by-products was proposed based on GC-MS analysis as follows: The first step is oxidative cleavage of C=C double bond in MAL, giving pyruvaldehyde, and pyruvaldehyde is subsequently hydrolyzed to acetic acid.
ISSN:	1346-8804 1349-273X
DOI:	10.1627/jpi.66.128