Multi-reactor slurry polymerization process

US11525017B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Peter Rohrbach · Remchingen, DE
• Juergen Perzlmeier · Neustadt an der Donau, DE

Key dates

• Filing date: Jan 2, 2018
• Grant date: Dec 13, 2022
• Expiry date: Mar 19, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors wherein monomers are polymerized in the polymerization reactors which include a reactor outlet arranged in each reactor bottom for feeding a reactor slurry to a subsequent polymerization reactor and for emptying the polymerization reactor.