Patent ID: 6489409
Filing Date: 2002-12-03
Classification: B01J,C08F

Abstract:
A process for manufacturing olefin polymers comprising,(a) at least one olefin is continuously polymerized in a polymerization reactor in the presence of a diluent (D) in order to produce a suspension (S) comprising said diluent (D) and olefin polymer particles; (b) some of the suspension (S) is drawn off from the reactor; (c) the suspension drawn off is diluted by means of a liquid (L) so as to obtain a dilute suspension (DS); (d) the dilute suspension (DS) is sent into a hydrocyclone separator in which a concentrated suspension (CS) of polymer particles and a stream (F) comprising diluent (D) are formed and separated; (e) the stream (F) is drawn off from the hydrocyclone separator; and (f) the olefin polymer particles are separated from the concentrated suspension (CS).