公开(公告)号：EP2109498A1

公开(公告)日：2009-10-21

申请号：EP08708269.9

申请日：2008-01-28

Applicant: Basell Poliolefine Italia S.R.L.

Inventor： DORINI, Maurizio ,  PENZO, Giuseppe ,  SABBIONI, Sergio

IPC: B01J8/38 ,  B01J19/18 ,  B01J19/24 ,  C08F10/00

CPC classification number: C08F10/00 ,  B01J8/386 ,  B01J19/1837 ,  B01J19/2435 ,  B01J2219/00006 ,  B01J2219/0004 ,  C08F210/06 ,  C08F2/14 ,  C08F2/001 ,  C08F2/01 ,  C08F210/16

Abstract: An apparatus for the liquid-phase polymerization of one or more α-olefins comprising: a first reactor selected from a loop reactor or a continuously stirred tank reactor; at least a downstream loop reactor; a connection line for transferring a polymer slurry from said first reactor to said downstream loop reactor, said connection line comprising: one or more adjacent pipes arranged at progressively increasing heights, each pipe forming with a horizontal direction (x) an angle α greater than the angle of rest of the obtained polymer; an on-off valve positioned flush with the wall of said downstream loop reactor.

公开(公告)号：EP1613668B1

公开(公告)日：2012-08-08

申请号：EP04725050.1

申请日：2004-04-01

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PENZO, Giuseppe ,  MEI, Gabriele ,  MEIER, Gerhardus

IPC: C08F10/00 ,  B01J8/24

CPC classification number: B01J8/1827 ,  B01J8/1872 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2208/003 ,  C08F10/00 ,  Y10S526/901 ,  Y10S526/918 ,  C08F2/01 ,  C08F2/34

Abstract: A continuous process for the olefin polymerization in a fluidized bed reactor, said process comprising continuously passing a gaseous stream comprising one or more α-olefin monomers through the fluidized bed in the presence of a polymerization catalyst under reactive conditions, withdrawing polymeric product and unreacted fluids from the reactor, cooling part of said unreacted fluids below the dew point to form a two-phase mixture of gas and condensed liquid and reintroducing said two-phase mixture into the reactor, the process being characterized in that said two­phase mixture is reintroduced under the distribution plate of the reactor so that a part of condensed liquid is separated from the gas and is successively fed above the fluidized bed through an external pipe connecting the bottom of the reactor to a point situated above the upper limit of the fluidized bed of polymer particles.

公开(公告)号：EP2087015B1

公开(公告)日：2011-09-28

申请号：EP07821795.7

申请日：2007-10-24

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PENZO, Giuseppe ,  RINALDI, Roberto

IPC: C08F10/00 ,  C08F297/08 ,  C08L23/00 ,  B01J8/24 ,  B01J8/26

CPC classification number: B01J8/1809 ,  B01J8/26 ,  B01J2208/00539 ,  B01J2208/0061 ,  B01J2219/00006 ,  B01J2219/0004 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08L23/10 ,  C08L23/16 ,  C08L2308/00 ,  C08F2/34 ,  C08F2/001 ,  C08L2666/06 ,  C08F2500/12 ,  C08F210/16

Abstract: A process for the multistage polymerization of olefins comprising a gas-phase polymerization carried out in at least two serially connected gas-phase reactors, the continuous discharge of polymer and gas reaction mixture from an upstream reactor into a transfer device and the continuous feeding of polymer from said transfer device to a downstream reactor, said transfer device comprising: a) a separation chamber in which said gas reaction mixture is removed from the polymer; b) at least a couple of lock hoppers working intermittently in parallel, where one of said lock hoppers is continuously filled with the polymer coming from step a), while simultaneously the other one is continuously pressurized by means of a gas comprising the reaction mixture coming from said downstream reactor.

公开(公告)号：EP2225022A1

公开(公告)日：2010-09-08

申请号：EP08863810.1

申请日：2008-12-17

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： MAZZUCCO, Antonio ,  RINALDI, Riccardo ,  SOFFRITTI, Silvia ,  BALESTRA, Enrico ,  PENZO, Giuseppe ,  MEI, Gabriele

IPC: B01J19/24 ,  C08F10/00

CPC classification number: B01J19/2435 ,  B01J2219/00164 ,  B01J2219/00166 ,  B01J2219/00173 ,  C08F10/00 ,  C08F110/06 ,  C08F210/06 ,  C08F2/34 ,  C08F2/001 ,  C08F2500/05 ,  C08F210/16

Abstract: A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate Fp of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50.

公开(公告)号：EP2183285A1

公开(公告)日：2010-05-12

申请号：EP08787007.7

申请日：2008-08-07

Applicant: Basell Poliolefine Italia S.R.L.

Inventor： PENZO, Giuseppe ,  RINALDI, Roberto ,  GALA, Antonio

IPC: C08F2/00 ,  C08F2/14

CPC classification number: C08F10/00 ,  B01J19/1818 ,  B01J19/1837 ,  B01J19/1881 ,  B01J2219/00094 ,  B01J2219/00114 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/00186 ,  C08F210/06 ,  C08F2/001 ,  C08F2/14 ,  C08F210/16

Abstract: A process for the slurry polymerization of one or more α-olefins in a sequence of at least two loop reactors interconnected by means of a transfer line, the transfer of polymer from a first loop reactor to a second loop reactor comprising the steps: i) establishing a recycle of polymer slurry to the second loop reactor by means of said transfer line, whereby a fraction of polymer slurry S1 withdrawn from said second loop reactor is continuously recycled back to it; ii) discharging a fraction of polymer slurry produced in the first loop reactor into a discharge line connected to said transfer line;

公开(公告)号：EP2087015A2

公开(公告)日：2009-08-12

申请号：EP07821795.7

申请日：2007-10-24

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PENZO, Giuseppe ,  RINALDI, Roberto

IPC: C08F10/00 ,  C08F297/08 ,  C08L23/00 ,  B01J8/24 ,  B01J8/26

CPC classification number: B01J8/1809 ,  B01J8/26 ,  B01J2208/00539 ,  B01J2208/0061 ,  B01J2219/00006 ,  B01J2219/0004 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08L23/10 ,  C08L23/16 ,  C08L2308/00 ,  C08F2/34 ,  C08F2/001 ,  C08L2666/06 ,  C08F2500/12 ,  C08F210/16

Abstract: A process for the multistage polymerization of olefins comprising a gas-phase polymerization carried out in at least two serially connected gas-phase reactors, the continuous discharge of polymer and gas reaction mixture from an upstream reactor into a transfer device and the continuous feeding of polymer from said transfer device to a downstream reactor, said transfer device comprising: a) a separation chamber in which said gas reaction mixture is removed from the polymer; b) at least a couple of lock hoppers working intermittently in parallel, where one of said lock hoppers is continuously filled with the polymer coming from step a), while simultaneously the other one is continuously pressurized by means of a gas comprising the reaction mixture coming from said downstream reactor.

公开(公告)号：EP1515993B1

公开(公告)日：2009-02-25

申请号：EP03738042.5

申请日：2003-06-17

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： BIGIAVI, Daniele ,  ARICH DE FINETTI, Nicolò ,  MEI, Gabriele ,  PENZO, Giuseppe ,  COVEZZI, Massimo ,  BAITA, Pietro ,  TONTI, Maria, Silvia

IPC: C08F6/00 ,  C08F6/10

CPC classification number: C08F6/003 ,  B01J2219/00006 ,  B01J2219/0004 ,  Y02P20/544 ,  C08L23/20

公开(公告)号：EP1613668A1

公开(公告)日：2006-01-11

申请号：EP04725050.1

申请日：2004-04-01

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PENZO, Giuseppe ,  MEI, Gabriele ,  MEIER, Gerben

IPC: C08F10/00 ,  B01J8/24

CPC classification number: B01J8/1827 ,  B01J8/1872 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2208/003 ,  C08F10/00 ,  Y10S526/901 ,  Y10S526/918 ,  C08F2/01 ,  C08F2/34

Abstract: A continuous process for the olefin polymerization in a fluidized bed reactor, said process comprising continuously passing a gaseous stream comprising one or more α-olefin monomers through the fluidized bed in the presence of a polymerization catalyst under reactive conditions, withdrawing polymeric product and unreacted fluids from the reactor, cooling part of said unreacted fluids below the dew point to form a two-phase mixture of gas and condensed liquid and reintroducing said two-phase mixture into the reactor, the process being characterized in that said two­phase mixture is reintroduced under the distribution plate of the reactor so that a part of condensed liquid is separated from the gas and is successively fed above the fluidized bed through an external pipe connecting the bottom of the reactor to a point situated above the upper limit of the fluidized bed of polymer particles.

公开(公告)号：EP2095048B1

公开(公告)日：2019-08-21

申请号：EP07857471.2

申请日：2007-12-12

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： PENZO, Giuseppe ,  RINALDI, Roberto

IPC: F26B3/08 ,  F26B21/14

公开(公告)号：EP2125190B1

公开(公告)日：2019-01-16

申请号：EP07847779.1

申请日：2007-12-04

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： RINALDI, Roberto ,  PENZO, Giuseppe ,  GOVONI, Gabriele

IPC: B01J8/18 ,  B01J8/24 ,  C08F2/34 ,  C08F10/00