Method for the purification of propylene oxide
US5106458A · kind A · utility
7Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1991 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Jul 26, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D301/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methyl formate is removed from impure propylene oxide by contacting the impure propylene oxide in a treating zone with a basic ion exchange resin for a period of time sufficient to convert the methyl formate to formic acid and methanol, and by withdrawing a substantially methyl formate-free treated propylene oxide product from the treating zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.