Catalyst
US11285462B2 · kind B2 · utility
0Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B61/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for producing unsaturated aldehyde and unsaturated carboxylic acid, wherein the cumulative pore volume (A) of pores having a pore diameter of 1 μm or more and 100 μm or less, in the catalyst, is 0.12 ml/g or more and 0.19 ml/g or less, and the ratio (A/B) of the cumulative pore volume (A) to the cumulative pore volume (B) of pores having a pore diameter of 1 μm or more and 100 μm or less, in a pulverized product not passing through a Tyler 6 mesh, in a pulverized product obtained by pulverization of the catalyst under a particular condition is 0.30 or more and 0.87 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.