Process for the preparation of cumene hydroperoxide
US6043399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1999 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Feb 12, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C409/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention lies in the field of the manufacture of phenol from cumene. The subject of the invention is a process for the continuous preparation of cumene hydroperoxide by oxidation, in the liquid phase, of cumene in the presence of oxygen. The process according to the invention is carried out in the presence of at least one agent chosen from the hydroxide or the carbonate of an alkali metal and/or alkaline-earth metal; the said agent being used in an amount of between 2 and 10 ppb (expressed as sodium hydroxide) with respect to the amount of cumene introduced. The invention likewise relates to the use of the hydroperoxide thus obtained for preparing phenol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.