Recovery of unreacted monomers in an olefin polymerization process
US5391656A · kind A · utility
24Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/901
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of recovering and recycling monomers from a gas phase olefins polymerization reactor through the use of the monomer feed stream. A high pressure monomer source is reduced in pressure so as to reduce the temperature of the monomer source. The monomer source is then used to cool and condense monomers contained in various vent gas streams. The condensed monomers are then separated from the gas stream and recycled back to the reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.