Production of olefin polymerization catalysts

US7341971B2 · kind B2 · utility

Assignee

• Borealis Technology Oy · FI

Inventors

• Peter Denifl · Gries am Brenner, AT
• Erik Van Praet · Veltem-Beisem, BE
• Michael Bartke · Bodenwerder, DE
• Marita Oksman · Helsinki, FI
• Marja Mustonen · Merijärvi, FI
• Thomas Garoff · Helsinki, FI
• Kari Pesonen · Askola, FI

Key dates

• Filing date: Dec 18, 2002
• Grant date: Mar 11, 2008
• Expiry date: Dec 18, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention provides a process for producing an olefin polymerization catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system which comprises a solution of one or more catalyst components dispersed in a solvent immiscible therewith; and solidifying said dispersed phase to convert said droplets to solid particles comprising the catalyst and optionally recovering said particles.