Process for reducing the concentration of by-products in product mixtures

US5770752A · kind A · utility

Assignee

• Targor GmbH · DE

Inventors

• Wilhelm Kaufmann · Rödermark, DE
• Thomas Wisser · Limburg, DE
• Johann Streb · Frankfurt, DE
• Thomas Rink · Waldfenster, DE
• Roland Zenk · Bayreuth, DE
• Michael Riedel · Essen, DE
• Ivan Cabrera · Dreieich, DE

Key dates

• Filing date: Dec 18, 1996
• Grant date: Jun 23, 1998
• Expiry date: Dec 18, 2016

Classification

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

Abstract

The present invention relates to a process for reducing the concentration of organometallic and/or inorganic by-products in product mixtures formed in the synthesis of metallocenes, which comprises treating a mixture comprising one or more metallocenes and one or more organometallic and/or inorganic by-products with a polar extractant.