公开(公告)号：US20220403064A1

公开(公告)日：2022-12-22

申请号：US17778182

申请日：2020-11-09

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： PAOLO CAPISANI ,  NICOLO ARICH DE FINETTI ,  PIETRO BAITA

IPC: C08F10/00 ,  C08F2/01 ,  B01J19/24 ,  B01J8/00

Abstract: A process (and a related system) for collecting samples of a polymerization catalyst or of a catalyst-containing polymer from an operation unit, having an upper end and a lower end, of a polymerization plant, including the steps of: a) extracting a prefixed amount of product from the lower end of the operation unit through a discharge valve; b) directing the 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; and e) displacing the filtering unit, for collecting the sample.

公开(公告)号：US20220072499A1

公开(公告)日：2022-03-10

申请号：US17424382

申请日：2020-01-21

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： TIZIANA CAPUTO ,  ANTONIO MAZZUCCO ,  NICOLO ARICH DE FINETTI ,  MARCO BOCCHINO

IPC: B01J19/00 ,  B01J19/24

Abstract: A method for monitoring and controlling the polymerization in a polymerization vessel by using a camera viewing unit to (a) detect features of the polymer particles, or the particles' environment, (b) compare the features to pre-defined acceptable values of these features or the environment, and (c) if a variation from the pre-defined values is detected, act on process parameters to reduce or eliminate the variation.

公开(公告)号：US20220396649A1

公开(公告)日：2022-12-15

申请号：US17776117

申请日：2020-11-03

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： NICOLO ARICH DE FINETTI ,  PIETRO BAITA ,  ANTONIO MAZZUCCO ,  ROBERTA PICA

IPC: C08F210/16

Abstract: A process for the continuous solution polymerization including the step of polymerizing a first olefin monomer of formula CH2═CHR1, wherein R1 is hydrogen or a hydrocarbon radical having from 1 to 8 carbon atoms with a second olefin monomer of formula CH2═CHR2, wherein R2 is a hydrocarbon radical having from 3 to 8 carbon atoms, in the presence of a polymerization catalyst and in the absence of an inert solvent, at a polymerization temperature (Tp) satisfying the following relationship: Tp≥Tm+20° C. wherein Tm is the melting temperature of the obtained polymer.

公开(公告)号：US20200231716A1

公开(公告)日：2020-07-23

申请号：US16647766

申请日：2018-09-07

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： DIEGO BRITA ,  NICOLO ARICH DE FINETTI ,  OFELIA FUSCO ,  BENEDETTA GADDI

IPC: C08F4/659 ,  C08F10/06

Abstract: A process for the preparation of a solid catalyst component for the polymerization of CH2═CHR olefins, wherein R is hydrogen or hydrocarbyl radical with 1-12 carbon atoms, made from or containing a Ti compound on a Mg chloride based support, including the steps of (a) reacting a Mg based compound with a liquid medium made from or containing a Ti compound, at a temperature ranging from 0 to 150° C., thereby yielding solid particles; and (b) suspending the solid particles coming from step (a) in a liquid medium made from or containing hydrocarbons at a temperature ranging from 10 to 100° C., wherein step (a) or (b) is carried out in the presence of 0.2 to 20.0% by weight, with respect to the amount of Mg compound, of particles of a solid compound containing more than 50% by weight of SiO2 units and having average particle size from 1 to 100 μm.