شماره ركورد كنفرانس :
5048
عنوان مقاله :
Ethylene Polymerization Process With a New Ti-based Ziegler- Natta catalyst
Author/Authors :
F ،Shahsavari National Petrochemical Company-Research & Technology Co. (NPC-RT), Tehran- Iran , F ،Poorsang National Petrochemical Company-Research & Technology Co. (NPC-RT), Tehran- Iran , M ،Mashhadi National Petrochemical Company-Research & Technology Co. (NPC-RT), Tehran- Iran
كليدواژه :
Polyethylene , Ziegler-Natta catalyst , Hydrogen effect , cocatalyst , Slurry polymerization
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
The slurry polymerization of ethylene using a new commercial Ti-based Ziegler-Natta catalyst
has been investigated. The variations in concentrations of monomer, cocatalyst and hydrogen on
activity of catalyst, rate of polymerization were studied. The effect of presence of hydrogen on
molecular weight distribution of produced polymers was also studied. With increasing the Al:Ti
molar ration activity of the catalyst increased and then decreased. There was an optimum Al:Ti
molar ratio to obtain the highest activity of the catalyst. The maximum activity was obtained at
Al:Ti=65, T=80°C, P=8 bar. At this condition activity was 4577.1grPE/mmolTi.h. Addition of
hydrogen decreased the rate of polymerization, activity and molecular weight of produced
polyethylene. The polymerization rate was increased with increasing monomer pressure.
