Process for preparing a catalyst for use in production of methacrylic acid and process of preparing methacrylic acid
AssigneeNippon Shokubai Co., Ltd.
InventorsYuichi Kase, Naomasa Kimura, Hideo Onodera
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Abstract
The present invention provides a process for preparing a catalyst and the same for use in production of methacrylic acid, which is characterized by molding a raw material including a powder containing phosphorus and molybdenum at the specific pressure. The invention also provides a process for preparing methacrylic acid by gas phase oxidation and/or oxidative dehydrogenation of at least one compound selected from the group consisting of methacrolein, isobutyraldehyde and isobutyric acid in the presence of the catalyst
Claims7
A process for preparing a catalyst for use in production of methacrylic acid by gas phase oxidation and/or oxidative dehydrogenation of at least one compound selected from the group consisting of methacrolein, isobutyraldehyde and isobutyric acid, which comprises:
- molding a raw material including a powder containing phosphorus and molybdenum at the pressure of 50 kgf/cm2 to 5000 kgf/cm2 into an article;
- and
- calcining the molded article to obtain a catalyst.
Dependencies are inferred from the claim text.