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Ethylene is combined with a small amount of co-monomer (butene) & solvent in a reactor with catalyst。 Solvent cyclohexane (or isobutane), is removed from the reactor and sent to solvent recovery. The solvent is used to prevent the viscosity of the reaction mass from getting too high. PE polymer goes to the extruder, then the pelletizer.




Solid & semi-solids contaminant can be introduced into process or created during manufacturing:



A:  FCN   10um
B:  FCN   40um
C:  PT   10um
D:  Jumbo  5-10um



Lower filter disposal costs
Reduced maintenance expense on distillation column downstream of filters
Reduced exposure to catalyst

Improved HDPE product quality, because of improved hexane quality

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