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1.发明申请
公开(公告)号：WO2021104837A1
公开(公告)日：2021-06-03
申请号：PCT/EP2020/081425
申请日：2020-11-09
Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
Inventor： CAPISANI, Paolo , ARICH DE FINETTI, Nicolò , BAITA, Pietro
Abstract: A process and a system for collecting samples of a polymerization catalyst or of a catalyst-containing polymer from an operation unit of a polymerization plant, the operation unit comprising an upper end and a lower end, the process comprising: a) extracting a prefixed amount of product from the lower end of the operation unit through a discharge valve; b) directing said product towards a filtering unit through an inlet valve; c) flushing an inert gas through the filtering unit; d) outgassing the filtering unit, through the outlet valve; e) displacing the filtering unit in order to collect the polymerization catalyst or the catalyst-containing polymer sample.
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公开(公告)号：EP4372016A1
公开(公告)日：2024-05-22
申请号：EP22208336.2
申请日：2022-11-18
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： BALESTRA, Enrico , MAZZUCCO, Antonio , DI FEDERICO, Pier Luigi , PANTALEONI, Roberto , CAPISANI, Paolo
IPC: C08F110/06 , C08F2/01 , C08F2/00 , C08F4/651
CPC classification number: C08F110/06
Abstract: A process for the preparation of polyolefins comprising the step of polymerizing an olefin in the liquid phase in the presence of a polymerization catalyst and of an antistatic composition, wherein the polymer slurry is conveyed in a transfer line comprising a horizontal section and a series of vertical sections connected by bent sections, with the antistatic composition injected in the first portion of the first section of the series of vertical sections.
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3.发明公开
公开(公告)号：EP4065609A1
公开(公告)日：2022-10-05
申请号：EP20800944.9
申请日：2020-11-09
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： CAPISANI, Paolo , ARICH DE FINETTI, Nicolò , BAITA, Pietro
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