Process for the preparation of phenol by means of the hydrodeoxygenation of benzene-diols
US6936738B2 · kind B2 · utility
2Cited by
1References
23Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is described for the preparation of phenol characterized in that the phenol is obtained by means of the hydrodeoxygenation of benzene-diols with hydrogen, operating in continuous, in an aqueous solution, at temperatures ranging from 250 to 500° C., at pressures of 1-100 bar and in the presence of a catalyst based on elements of group VIB or group VIII of the periodic table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.