Low-Pressure Polymerization

Low-Pressure polymerization uses heterogeneous catalyst supported on an inorganic carrier, or Ziegler catalysit such as aluminum alkyls and titanium halides. It produces high density polyethylene (HDPE) with a density range of 0.941 to 0.970 g/cm3.

The reactors run at pressures ranging from 0.1 to 20 MPa and temperatures of around 50 to 300oC.

Because the extrem conditions of the high-pressure process are not present, low-pressure dominates current polyethelene manufacturing industry.

Read on to find out more about reactor feed.