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AssigneeNippon Kayaku Kabushiki Kaisha
InventorsShigeki OKUMURA, Shogo YASUDA, Takanori NAKANO, Yumi HINO, Tomoyuki KAWAMURA
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A catalyst containing molybdenum, bismuth, and iron, in which R1 represented by the following equation (1) is 0.45 or more and 5.00 or less is provided, and use of the catalyst achieves a high yield, in the case of the use in a gas phase oxidation reaction, particularly in the case of the use in producing an unsaturated aldehyde compound or an unsaturated carboxylic acid compound by a partial oxidation reaction, R 1 = ( maximum value of peak at 886 cm - 1 ± 5 cm - 1 ) ÷ ( maximum value of peak at 354 cm - 1 ± 5 cm - 1 ) as measured by Raman spectroscopy . ( 1 )
A catalyst comprising molybdenum, bismuth, and iron, wherein R1 represented by the following equation (1) is 0.45 or more and 5.00 or less,
A catalyst comprising molybdenum, bismuth, and iron, wherein R2 represented by the following equation (2) is 951.4 cm−1 or more and 959.0 cm−1 or less,
A catalyst comprising molybdenum, bismuth, and iron, wherein R3 represented by the following equation (3) is 0.21 or more,
Dependencies are inferred from the claim text.