High condensing mode polyolefin production under turbulent conditions in a fluidized bed
US6391985B1 · kind B1 · utility
87Cited by
16References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 21, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A fluidized bed olefin polymerization process is operated in the turbulent regime while utilizing greater than 17.5% liquid in the recycle fluid to remove the heat of reaction. The ratio of fluidized bed density to settled bed density may, contrary to prior art predelictions, be maintained at lower than 0.59.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.