Improved cocatalyst for the production of linear alpha-olefins

B - Operations – Transporting – 01 – J

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B01J 31/04 (2006.01) B01J 31/14 (2006.01) C07C 2/22 (2006.01) C07C 2/26 (2006.01) C07C 2/30 (2006.01) C07C 2/88 (2006.01) C08F 4/642 (2006.01) C08F 10/02 (2006.01)

Patent

CA 2574231

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.

L'invention concerne un catalyste homogène destiné à la production d'alpha oléfines par oligomérisation de l'éthylène, comprenant une solution salée de zirconium d'acides organiques et un cocatalyseur composé de trialkylaluminiums et/ou de chlorure d'aluminium. L'activité du catalyseur, du système peut parfois être sensiblement augmentée par ajustement du rapport molaire de chlorure à l'aluminium dans le cocatalyseur dans une plage allant de 1.0 à 1.5. La viabilité économique du procédé de production et la pureté du produit sont améliorées.

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