Process for the anti-sticking treatment of polymer pellets
AssigneeBasell Poliolefine Italia S.r.l.
InventorsDecio Malucelli, Marco Consalvi
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Abstract
A process for the anti-sticking treatment of polymer pellets comprising: a) pelletizing the polymer in the presence of cooling water; b) drying the polymer pellets by means of a centrifugal drier, wherein in step b) an aqueous composition comprising an anti-sticking agents is metered inside said centrifugal drier.
Claims8
A process for the anti-sticking treatment of polymer pellets comprising:
- a) pelletizing polymer in the presence of cooling water to provide polymer pellets;
- and
- b) drying the polymer pellets by means of a centrifugal drier,
- wherein in step b) an aqueous composition comprising an anti-sticking agent is metered inside said centrifugal drier
- wherein said centrifugal drier comprises a rotor provided with lifter elements and a stationary cylindrical screen built up in at least one vertically arranged module wherein an upper third portion of said stationary cylindrical screen is covered by at least one solid sheet and at least one injection point is placed through the surface of said at least one solid sheet which is configured for metering said anti-sticking agent.
A process for the anti-sticking treatment of polymer pellets comprising:
- a) pelletizing polymer in the presence of cooling water to provide polymer pellets;
- and
- b) drying the polymer pellets by means of a centrifugal drier,
- wherein in step b) an anti-sticking agent is metered inside said centrifugal drier
- wherein said centrifugal drier comprises a rotor provided with lifter elements and a stationary cylindrical screen built up in at least one vertically arranged module wherein an upper third portion of said stationary cylindrical screen is covered by at least one solid sheet and at least one injection point is placed through the surface of said at least one solid sheet configured for metering said anti-sticking agent.
A centrifugal drier comprising a rotor provided with lifter elements and a stationary cylindrical screen built up in at least one vertically arranged module wherein,
- a) an upper third portion of said stationary cylindrical screen is covered by at least one solid sheet;
- and
- b) at least one injection point is placed through the surface of said at least one solid sheet configured for metering an aqueous composition comprising an anti-sticking agent.
Dependencies are inferred from the claim text.