Ditertiary butyl peroxide recovery
US4810809A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1986 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C407/003
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
It has been discovered in accordance in accordance with the present invention that a tertiary butyl alcohol/ditertiary butyl peroxide azeotrope may be recovered from a product containing tertiary butyl alcohol and ditertiary butyl peroxide by distilling the tertiary butyl alcohol product to obtain an overhead fraction containing substantially all of the ditertiary butyl peroxide/tertiary butyl alcohol azeotrope and other contaminants. It has been further discovered in accordance with the present invention that the ditertiary butyl peroxide can be recovered from the distillate fraction by extraction with ethylene glycol (e.g., in a countercurrent ethylene glycol extraction tower) to provide a ditertiary butyl peroxide product of any desired degree of purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.