Method of separating dimethyl carbonate and methanol
US6315868A · kind A · utility
5Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of separating methanol and dimethyl carbonate in a distillation column through extractive distillation. The extractive distillation is conducted in the presence of an extractive distillation agent which modifies the azeotropic behavior of the dimethyl carbonate/methanol mixture. A vapor side stream is removed from the distillation column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.