Cocatalyst For the Production of Linear Alpha-Olefins
AssigneesSaudi Basic Industries Corporation, Linde Aktiengesellschaft
InventorsHeinz Bolt, Peter Fritz, Holger Hackner, Atieh Abu-Raqabah, Mohammed Zahoor, Fuad Mosa
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Abstract
The invention relates to a homogeneous catalyst for the production of linear alpha-olefins by oligomerisation of ethylene, consisting of a zirconium salt of organic acids and a cocatalyst which consists of alkylaluminiums and/or aluminium chloride. The activity of the catalyst, system may sometimes be raised substantially by adjusting the molar ratio of chlorine to aluminium in the cocatalyst within the range between 1.0 and 1.5. The economic viability of the production process and product purity are improved.
Claims5
A homogeneous catalyst for the production of linear alpha-olefins by oligomerization of ethylene, comprising a zirconium salt of at least one organic acid and a cocatalyst which contains Al and Cl, wherein the cocatalyst consists essentially of one or more compounds selected from the group consisting of alkylaluminium compounds and AlCl3, AlCl(C2H5)2, AlCl2(C2H5) and Al2Cl3(C2H5), wherein the molar ratio of chlorine to aluminum in the cocatalyst is within the range of 1.0 to 1.3.
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Dependencies are inferred from the claim text.