Purification of propylene oxide by treatment with a selected base and inert salt
US4691035A · kind A · utility
10Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Apr 14, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D301/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Methyl formate is removed from propylene oxide by treatment with a selected base such as sodium hydroxide in water and glycerol. Selected inert salts may be added. The rate of methyl formate hydrolysis by selected bases was increased to commercially acceptable levels by addition of the glycerol. The glycerol and inert salts reduced the amount of residual water in the propylene oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.