PRODUCTION OF METHACRYLIC ACID AND/OR METHACROLEIN BY CATALYTIC OXIDATION OF ISOBUTANE

PURPOSE:To obtain the aimed substance at a lower temperature in a high selectivity by using catalyst having long life containing specific heteropolyacid salt or heteropolyacid and salt of said acid in obtaining the subject substance with gas-phase catalytic oxidation of isobutane using molecular oxy...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAI KOICHI, NAGAOKA YOSHIHIKO, SATO HIROSHI, OSU MOTOMASA
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the aimed substance at a lower temperature in a high selectivity by using catalyst having long life containing specific heteropolyacid salt or heteropolyacid and salt of said acid in obtaining the subject substance with gas-phase catalytic oxidation of isobutane using molecular oxygen. CONSTITUTION:In obtaining the subject substance with gas-phase catalytic oxidation of isobutane using molecular oxygen, the aimed substance is efficiently obtained from highly concentrated isobutane (15-35mol% in raw material gas) by using a catalyst expressed by the formula (X is Ru, Cs or thallium; Y is V and/or As; Z is Cu, Ag, Bi, Fe or Co, etc.; in a case of b=12, a, c and d are respectively