Effect of TiCl۴-Mg(OEt)۲ reaction temperature in a Ziegler Natta catalyst

In this paper, a simple procedure was designed for investigation of the reaction temperature betweenthe main catalyst components, i.e TiCl۴ and Mg(OEt)۲. The results showed that by increasing thereaction temperature from ۰°C (in Cat ۱) to ۸۵ °C (in Cat ۲), the structure of the catalyst and itsperformance are improved. Increasing the catalyst particle size from ۵.۷۷ to ۱۲.۸ micrometers, aswell as reducing the particle size distribution, is one of the most important advantages of performingthis reaction at high temperatures. By reducing the Ti/Mg molar ratio in the larger catalyst, a betterdistribution of active sites on the surface of the catalyst has emerged, which leads to an improvementin the activity of the catalyst and the bulk density of the produced polyethylene.

کلیدواژه ها:

Polyethylene ، catalyst ، Titanium tetrachloride ، magnesium ethoxide