Slurry phase polymerisation process

US7820116B2 · kind B2 · utility

Assignee

• INEOS MANUFACTURING BELGIUM NV · BE

Inventors

• Stephen Kevin Lee · Oakland, US
• Brent R. Walworth · Sint-Niklaas, BE
• Daniel Marissal · Braine-le-Comte, BE

Key dates

• Filing date: Jun 10, 2009
• Grant date: Oct 26, 2010
• Expiry date: Jun 10, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/918
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.