Catalyst for oligomerization of ethylene, method for its preparation and oligomerization process using the catalyst

US8252871B2 · kind B2 · utility

Assignees

• SAUDI BASIC INDUSTRIES CORPORATION · SA
• Linde GmbH · DE

Inventors

• Vugar O. Aliyev · Riyadh, SA
• Mohammed H. Al-Hazmi · Riyadh, SA
• Fuad Mosa · Riyadh, SA
• Uwe Rosenthal · Munich, DE
• Bernd H. Müller · Rostock, DE
• Marko Hapke · Rostock, DE
• Normen Peulecke · Rostock, DE
• Anina Wöhl · Munich, DE
• Peter M. Fritz · Unterhaching, DE
• Heinz Bölt · Wolfratshausen, DE
• Wolfgang Muller · Königsfeld, DE
• Florian Winkler · Munich, DE
• Anton Wellenhofer · Hersbruck, DE

Key dates

• Filing date: Mar 4, 2009
• Grant date: Aug 28, 2012
• Expiry date: Mar 4, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/62
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a catalyst for oligomerization of ethylene, comprising a functionalized solid support; a ligand immobilized on the solid support by chemical bonding, wherein the immobilized ligand has the structure (R1)(R2)P—N(R3)—P(R4)—Y-support or (R1)(R2)P—N(R3)—P(R4)—N(R5)—P(R6)—Y-support, wherein R1, R2, R3, R4, R5 and R6 are independently selected from aliphatic group, aryl group, amino group and trimethylsilyl group and Y is the functional group of the support or a derivative thereof; and a chromium compound reacted with the ligand; and to a method for its preparation and a process for oligomerization of ethylene utilizing the catalyst.