Patent ID: 7511183
Filing Date: 2009-03-31
Classification: B01J,C07C,C07F,C08F

Abstract:
1. A process for tetramerisation of olefins comprising contacting an olefinic feedstream with a catalyst system which includes the combination of a transition metal compound; a heteroatomic ligand described by the following general formula wherein provided that when the heteroatomic ligand is described by the following general formula wherein any substituents that may be part of one or more of R 1 , R 2 , R 3 and R 4 are non electron donating and where R 1 , R 2 , R 3 and R 4 are independently aromatic, including hetero aromatic groups, not all the groups R 1 , R 2 , R 3 and R 4 have a substituent on the atom adjacent to the atom bound to A or C; and an activator selected from the group consisting of organoaluminium compounds, organoboron compounds, organic salts, inorganic acids and salts, wherein the organoaluminium compounds are selected from the group of compounds of the formula AIR