CATALYST FOR PYROMELLITIC ANHYDRIDE PRODUCTION AND PRODUCTION METHOD OF PYROMELLITIC ANHYDRIDE

PROBLEM TO BE SOLVED: To provide a catalyst for improving the yield of pyromellitic anhydride and a production method of pyromellitic anhydride using the catalyst. SOLUTION: The catalyst for pyromellitic anhydride production from 1,2,4,5-tetraalkylbenzene as a raw material comprises a catalytic comp...

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Hauptverfasser:	TAKAHASHI TSUKASA, MATSUNAMI ETSUSEI, HAKOZAKI NOBUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a catalyst for improving the yield of pyromellitic anhydride and a production method of pyromellitic anhydride using the catalyst. SOLUTION: The catalyst for pyromellitic anhydride production from 1,2,4,5-tetraalkylbenzene as a raw material comprises a catalytic component deposited on a column-type carrier having 4-11 mm diameter and 3-15 mm length. The production method of pyromellitic anhydride is carried out using the catalyst. COPYRIGHT: (C)2005,JPO&NCIPI