Method of removing dimethyl ether from an olefin stream
US6855858B2 · kind B2 · utility
10Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2002 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Feb 17, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer grade ethylene stream and a polymer grade propylene stream, with each stream containing not greater than about 10 wppm dimethyl ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.