PRODUCTION OF METACROLEIN, METHACRILIC ACID AND 1,3-BUTADIENE

PROBLEM TO BE SOLVED: To obtain ethacrolein, methacrylic acid and 1,3-butadiene efficiently, in high selectivity and in high yield by catalytically oxidizing a spent 4C fraction with molecular oxygen in a vapor phase in the presence of a specific catalyst. SOLUTION: A spent 4C fraction is catalytica...

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Bibliographische Detailangaben
Hauptverfasser: YOSHIDA KOICHI, OKITA MOTOMU, MIYAGI KENICHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To obtain ethacrolein, methacrylic acid and 1,3-butadiene efficiently, in high selectivity and in high yield by catalytically oxidizing a spent 4C fraction with molecular oxygen in a vapor phase in the presence of a specific catalyst. SOLUTION: A spent 4C fraction is catalytically oxidized with molecular oxygen in a vapor phase in the presence of a compound of the formula (A is Ni or Co; X is Mg, Zn, Mn, Cr, Sn, or Pd; Y is P, B, S or Se; Z is Na, K, rubidium, thallium or cesium; when (a) 12, 0.001