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Oligomerization and co-oligomerization of α-olefins catalyzed by nickel(II)/alkylaluminum systems

✍ Scribed by R.G. da Rosa; M.O. de Souza; R.F. de Souza

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
659 KB
Volume
120
Category
Article
ISSN
1381-1169

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✦ Synopsis

This work describes cY-olefins oligomerization/co-oligomerization of I-butene, I-hexene, 1-octene to linear oligomers (Cs-C,, range) promoted by catalytic systems based on nickel(H) salts/alkylaluminum compounds. Conversion, selectivity (isomerization or oligomerization) and linearity are determined by mass distribution calculation of the substrates ( cY-oletins) in the products. The best results are obtained with Ni(acac),/AlEt,OEt working at 6O"C, Al/Ni ratio between 0.8-1.4 and using toluene as a solvent. Under these conditions, the conversion is higher than 90% giving 40% of oligomerization selectivity. The linearity varies from 65% (C,, fraction) to 98% (C, fraction).

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