Experimental Investigation of Z-N Catalyst Pre-contacting on Polymerization
Sprache des Vortragstitels:
Working Party on Polymer Reaction Engineering
Sprache des Tagungstitel:
Polyolefines account for about one third of the plastics production, with
heterogeneous Ziegler-Natta (Z-N) based catalysts dominating the polyolefin
production. Since the first Z-N polymerization in 1953 by Karl Ziegler and his
research team, there is a constant progress in catalyst design to increase the catalyst
activity and powder morphology .
Beside the catalyst design there are further possibilities to enhance a catalyst
system. It is described that pre-treatment of the catalyst can influence the activity of
the catalyst system and particle morphology . Especially co-catalyst (aluminium
alkyl) diffusion into the catalyst particle is very important for the catalyst activation,
like described in Figure 1 .