High solids slurry polymerization using heat exchange to condense the flashed diluent
US6806324B2 · kind B2 · utility
20Cited by
101References
19Claims
0Family size
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Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jun 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An olefin polymerization process wherein monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The product slurry is exposed to a pressure drop in a flash zone, producing a second slurry and vaporized diluent. The vaporized diluent produced in said flash chamber is condensed by heat exchange, without compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.