MANUFACTURING METHOD OF HETEROPOLYACID-BASED CATALYST FOR PRODUCING METHACRYLIC ACID

MANUFACTURING METHOD OF HETEROPOLYACID-BASED CATALYST FOR PRODUCING METHACRYLIC ACID

PROBLEM TO BE SOLVED: To provide a manufacturing method of a heteropolyacid-based catalyst for producing methacrylic acid having a large surface area, modified in its catalytic interface and excellent in the productivity of methacrylic acid from metacrolein. SOLUTION: In the manufacturing method of...

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Bibliographische Detailangaben
1. Verfasser: MASAKI TOMOHIRO
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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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a manufacturing method of a heteropolyacid-based catalyst for producing methacrylic acid having a large surface area, modified in its catalytic interface and excellent in the productivity of methacrylic acid from metacrolein. SOLUTION: In the manufacturing method of the heteropolyacid-based catalyst for use in producing methacrylic acid by gaseous phase catalytic oxidation, activated sludge is used in the preparation of the heteropolyacid-based catalyst. The heteropolyacid-based catalyst having the large surface area, modified in its catalytic interface and enhanced in the productivity of methacrylic acid from metacrolein can be manufactured by the manufacturing method of the heteropolyacid-based catalyst for producing methacrylic acid. COPYRIGHT: (C)2009,JPO&INPIT