Abstract:
Propylene gas of high purity (99.5 percent+) is fed to a reactor containing
a solvent and catalyst, and polymerised in the 1iquid phase at 50-l00oe
and 1-10 atmospheres to form polypropylene.
The polypropylene is insoluble and precipitates as a fine
The polymer slurry is transferred to a stripping tank
propylene is flushed off and recycled. The catalyst
dissolution in methanol and the resultant polypropylene is
pack aged.