Title:
METHOD FOR PRODUCING CATALYST
Document Type and Number:
Japanese Patent JP2022046942
Kind Code:
A
Abstract:
To provide a method for producing catalysts that makes it possible to produce unsaturated aldehydes with a high invert ratio, selectivity and yield as catalysts used in a gas-phase catalytic oxidation reaction to produce unsaturated aldehydes, such as acrolein, methacrolein, cinnamaldehyde from unsaturated compounds such as propylene, isobutene, tertiary butanol, allyl benzene.SOLUTION: The present invention discloses a method for producing catalysts that subjects unsaturated compounds to a gas-phase catalytic oxidation with a molecular oxygen-containing gas to produce corresponding unsaturated aldehydes. The method includes the steps of: mixing a molybdenum-containing liquid with a pH of 7.0 or more with a liquid containing cobalt and iron to make a liquid mixture; drying the liquid mixture to make a powder; and mixing the powder with an organic bismuth compound.SELECTED DRAWING: None
Inventors:
TAKO TERUFUSA
FUJITSUKA HIROYASU
KONYA SOICHIRO
ITO KOETSU
FUJITSUKA HIROYASU
KONYA SOICHIRO
ITO KOETSU
Application Number:
JP2020152592A
Publication Date:
March 24, 2022
Filing Date:
September 11, 2020
Export Citation:
Assignee:
TOKYO INST TECH
MITSUBISHI CHEM CORP
MITSUBISHI CHEM CORP
International Classes:
B01J37/04; B01J23/882; C07C45/34; C07C47/228
Attorney, Agent or Firm:
Naoya Kamada
Bunji Kamata
Yaichiro Nakatani
Kitagawa Masanori
Bunji Kamata
Yaichiro Nakatani
Kitagawa Masanori