Patent ID: 7566679
Filing Date: 2009-07-28
Classification: B01J,C07C,C08F

Abstract:
1. A homogeneous catalyst for the production of linear alpha-olefins by oligomerization of ethylene, comprising a zirconium salt having the chemical formula ZrCl m X n , wherein m+n=4, 1≦m≦2 and X is a carboxylate a C 4 to C 9 organic acid and a cocatalyst which consists essentially of two or more compounds selected from the group consisting of Al(C 2 H 5 ) 3 , AlCl 3 , AlCl(C 2 H 5 ) 2 , AlCl 2 (C 2 H 5 ) and Al 2 Cl 3 (C 2 H 5 ) 3 , wherein the molar ratio of chlorine to aluminum in the cocatalyst is within the range of 1.0 to 1.3.