Purification of propylene oxide by extractive distillation
US4140588A · kind A · utility
27Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1977 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Aug 5, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Propylene oxide is separated from contaminating quantities of methanol and acetone by extractive distillation with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.