Title:
CATALYST AND PRODUCTION METHOD FOR CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/171793
Kind Code:
A1
Abstract:
Provided is a catalyst that is used in a gas phase catalytic oxidation reaction or a gas phase catalytic ammoxidation reaction of propane or isobutane. The catalyst comprises catalyst particles having a composite metal oxide and a carrier supporting the composite metal oxide. The median diameter of the catalyst particles is 20-150 µm, and the shape of the catalyst particles is spherical. In a binarized image BP2 obtained after subjecting a cross-sectional image to a binarization process of classifying into prescribed white and black areas, the cross-sectional image including the catalyst particles having a surface area of 1200 µm2 or greater as determined through observation with a prescribed SEM backscattered electron image, the catalyst satisfies a feature of σ/A calculated by a prescribed method being within 0.10-0.30, inclusive.
Inventors:
OKA YUYA (JP)
MORIYA KOHEI (JP)
MORIYA KOHEI (JP)
Application Number:
PCT/JP2023/009277
Publication Date:
September 14, 2023
Filing Date:
March 10, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B01J23/28; B01J23/30; B01J35/08; B01J37/00; B01J37/08
Domestic Patent References:
| WO2016159085A1 | 2016-10-06 | |||
| WO2012111566A1 | 2012-08-23 | |||
| WO2012060175A1 | 2012-05-10 |
Foreign References:
| JP2001038226A | 2001-02-13 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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