Process for oxidizing phenol to p-benzoquinone
US4478752A · kind A · utility
3Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the process of oxidizing phenol to p-benzoquinone with a bivalent copper ion catalyst, the improvement of promoting the catalyst with a base to obtain improved conversion and/or selectivity. The preferred bases used are alkali metal hydroxides and phenates and secondary and tertiary lower alkyl amines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.