Basell Poliolefine Italia S.r.l.

Basell Polyolefine Gmbh

Luciano Michielin

Giuseppe Penzo

Pier Luigi Di Federico

Riccardo Rinaldi

Roberto Rinaldi

Maurizio Dorini

Olga Pizzutti, Legal Representative

Luciano Di Nardo

Carlo Ciccarone

Antonio Gala

A process for introducing a catalyst powder into a polymerization reactor comprising: a) metering the catalyst powder by means of a rotary valve comprising a stator, a rotor and sealing means arranged between said stator and said rotor; b) transferring a metered amount of catalyst powder from said rotary valve to a polymerization reactor; the process further comprising the steps of: c) feeding a flushing compound in one or more internal conduits arranged in the rotor of said rotary valve; d) flushing the catalyst powder away from said sealing means.

Process for feeding a catalyst in a polymerization reactor

A method of discharging polymer from a continuously operated polymerization reactor, wherein at least a monomer is polymerized to form polymer particles, the method comprising adjusting the discharge rate of the polymer particles by means of a piston valve having a piston element connected to an actuator, said actuator being able to modulate the piston stroke inside said piston valve.

Method of discharging a polymer from a polymerization reactor

A continuous process for minimizing the agglomeration of freshly manufactured polyolefin pellets comprising the steps of:

Post-treatment for polymer pellets

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Mantova, Italy

Luciano Michielin