Slurry phase polymerisation process
US7572866B2 · kind B2 · utility
5Cited by
34References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Nov 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/918
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process comprising polymerizing an olefin monomer optionally together with an olefin comonomer in the presence of a polymerization catalyst in a diluent in a loop reactor which comprises at least 2 horizontal sections and at least 2 vertical sections to produce a slurry comprising solid particulate olefin polymer and the diluent wherein the Froude number in at least 20% of the length of the vertical sections of the reactor loop is less than 85% of the Froude number in at least 20% of the length of the horizontal sections of the loop is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.