Gas-phase fluidized-bed reactor, multivessel polymerization reactor and process for producing olefin polymer
US7955565B2 · kind B2 · utility
2Cited by
3References
3Claims
0Family size
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Inventor
Key dates
| Filing date | May 16, 2006 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F10/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The gas-phase fluidized-bed reactor conducting reaction by feeding a gas, through a gas-distribution plate located at the lower part of a reaction vessel, into a fluidized bed formed on the gas-distribution plate, wherein the reaction vessel is made up so as to have a narrowed part at a specified position of the gas flow passage above the gas-distribution plate, and the fluidized bed is formed in the area from below the narrowed part to above the narrowed part. The gas-phase fluidized bed rector of the present invention allows manufacturing polymers having excellent homogeneity of polymer structure in gas-phase polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.