Influence of the composition of the catalytic system NiO-SiO2-Al2O3 on its catalytic properties in reactions of oligomerization of ethylene and isobutylene

Abstract

1. The catalyst NiO-SiO2 acquires activity in the reaction of dimerization of C2H4 when Al2O3 is introduced into it. 2. With increasing Al2O3 content in the catalyst, the conversion of C2H4 and i-C4H8 and the number of electron acceptor centers, recordable by ESR, pass through a maximum (1–3% Al), while the total acidity of the catalyst increases.