Patent ID: 6930218

Claim:
An ecologically friendly process of catalytic oligomerization of ethylene to low molecular weight alpha olefins, comprising the steps of: (i) adding to a reactor a catalytic component comprising an alkyl aluminum and a solvent selected from toluene, cyclohexane, and n-octane; (ii) admixing is said reactor a catalytic component comprising a Zr(OR) 4 compound in an alkanol at a ratio ranging from 1:0.33 to 1:1.23, wherein R s alkyl or aryl (iii) and further admixing in said reactor a catalytic component comprising alkyl aluminum halide; and (iv) charging the reactor continuously with ethylene at a pressure ranging from 18 to 35 kg/cm 2 at a temperature ranging from 80 to 140° C. and with a constant agitation to oligomerizing the ethyiore to low molecular weight alpha olefins.