Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid
US4808751A · kind A · utility
8Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1988 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Mar 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for reactivating a Group VIII noble metal catalyst employed in the purification of crude terephthalic acid formed by the liquid-phase oxidation of p-xylene in the presence of a catalyst comprising cobalt, manganese and bromine components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.