Method for oligomerizing olefins

US7214842B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Shahram Mihan · Bad Soden, DE
• Heiko Maas · Mannheim, DE
• Martina Prinz · Dossenheim, DE

Key dates

• Filing date: Apr 9, 2003
• Grant date: May 8, 2007
• Expiry date: Dec 16, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Olefins are oligomerized by contacting an olefin with a catalyst system that is comprised of a) at least one transition metal complex that is complexed with a polydentate complexing ligand and b) an alkylaluminoxane, each component being present in such amounts that the molar ratio of aluminum transition metal is greater than 10, wherein at least part of the amount of the transition metal complex is added continuously or in portions during the oligomerization.