Hydrogenation catalysts
US6066589A · kind A · utility
9Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrogenation catalysts comprising metallic palladium supported on activated carbon, wherein less than 50% by weight of the palladium is comprised within a surface layer with a depth of up to 50 microns, the remainder being comprised in a layer between 50 and 400 microns deep. The catalysts can be used in particular in purifying terephthalic acid obtained by oxidation of p-xylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.