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公开(公告)号：WO2009010413A1
公开(公告)日：2009-01-22
申请号：PCT/EP2008/058751
申请日：2008-07-07
Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
Inventor： GOVONI, Gabriele , PATRONCINI, Giovanni
CPC classification number: C08F10/06 , C08F210/06 , C08F2/001 , C08F4/6492 , C08F2/005 , C08F4/651 , C08F210/16
Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).
Abstract translation: 一种用于烯烃聚合的方法，包括：a）在聚合反应器中聚合至少一种液态烯烃单体以形成包含聚烯烃和所述液体单体的聚合浆料; b）通过包括管的输送管线将聚合淤浆从聚合反应器连续转移到闪蒸室，其中建立了包含聚合物，液体单体和气态单体的三相流的湍流; c）在所述闪蒸室中分离蒸发的单体与聚合物; 该方法的特征在于，在步骤（b）的所述管的入口的上游连续引入液体形式的防污剂。
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公开(公告)号：WO2008022900A1
公开(公告)日：2008-02-28
申请号：PCT/EP2007/058087
申请日：2007-08-03
Applicant: Basell Poliolefine Italia S.R.L.
Inventor： PEDRIALI, Lorella , FLAMMINI, Roberto , BENETTI, Derenzio , FAIT, Anna , PATRONCINI, Giovanni
Abstract: A method for preparing a catalytic composition for the olefin polymerization in the form of a dispersion of catalyst particles in a semi-fluid matrix, characterized in that it comprises the steps of: a) forming a suspension of catalyst particles in oil by loading under a continuous stirring dry catalyst powder into a tank containing said oil, the load velocity of the catalyst powder per m 2 of oil interface being less of 800 kg/h*m 2 ; b) adding under stirring a molten thickening agent having a melting point in a range from 30 to 70°C, while maintaining the catalyst suspension in oil at a temperature such that said thickening agent solidifies on contact with said suspension.
Abstract translation: 制备催化剂颗粒在半流体基质中的分散体形式的用于烯烃聚合的催化组合物的方法，其特征在于其包括以下步骤：a）在催化剂颗粒在油中形成悬浮液， 将连续搅拌的干燥催化剂粉末连续搅拌到含有所述油的罐中，每m 2油界面的催化剂粉末的负载速度小于800kg / h * m 2; b）在搅拌下加入熔点为30-70℃的熔融增稠剂，同时将催化剂悬浮液保持在使所述增稠剂与所述悬浮液接触时固化的温度。
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Patent Agency Ranking
公开(公告)号：EP2222719A2
公开(公告)日：2010-09-01
申请号：EP08865031.2
申请日：2008-12-09
Applicant: Basell Poliolefine Italia S.R.L.
Inventor： VINCENZI, Paolo , PATRONCINI, Giovanni
IPC: C08F4/651 , C08F110/06
CPC classification number: C08F10/00 , C08F110/06 , C08F4/651 , C08F2500/18 , C08F2500/24
Abstract: Catalyst component having average particle size equal to or lower than 40 μm comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 15 to 50% by mol with respect to the total amount of donors and selected from succinates of formula (I) below (I) in which the radicals R1 and R2, equal to, or different from, each other are a C1-C20 linear or branched alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or alkylaryl group, optionally containing heteroatoms; and the radicals R3 and R4 equal to, or different from, each other, are C1-C20 alkyl, C3-C20 cycloalkyl, C5-C20 aryl, arylalkyl or alkylaryl group with the proviso that at least one of them is a branched alkyl; said compounds being, with respect to the two asymmetric carbon atoms identified in the structure of formula (I), stereoisomers of the type (S, R) or (R, S) and at least another electron donor compound which is extractable, under the test of extractability disclosed in the characterization section, for more than 30% by mol.
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公开(公告)号：EP2176300A1
公开(公告)日：2010-04-21
申请号：EP08785939.3
申请日：2008-07-07
Applicant: Basell Poliolefine Italia S.R.L.
Inventor： GOVONI, Gabriele , PATRONCINI, Giovanni
CPC classification number: C08F10/06 , C08F210/06 , C08F2/001 , C08F4/6492 , C08F2/005 , C08F4/651 , C08F210/16
Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).
Abstract translation: 一种烯烃聚合方法，包括：a）在聚合反应器中使至少一种液态烯烃单体聚合以形成包含聚烯烃和所述液态单体的聚合浆料; b）通过包括管道的输送管线将聚合淤浆从聚合反应器连续输送至闪蒸室，其中建立了包含聚合物，液体单体和气态单体的三相流的湍流; c）在所述闪蒸室中从所述聚合物分离蒸发的单体; 该方法的特征在于在步骤（b）的所述管的入口的上游连续引入液体形式的防污剂。
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公开(公告)号：EP2054451A1
公开(公告)日：2009-05-06
申请号：EP07788219.9
申请日：2007-08-03
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： PEDRIALI, Lorella , FLAMMINI, Roberto , BENETTI, Derenzio , FAIT, Anna , PATRONCINI, Giovanni
Abstract: A method for preparing a catalytic composition for the olefin polymerization in the form of a dispersion of catalyst particles in a semi-fluid matrix, characterized in that it comprises the steps of: a) forming a suspension of catalyst particles in oil by loading under a continuous stirring dry catalyst powder into a tank containing said oil, the load velocity of the catalyst powder per m2 of oil interface being less of 800 kg/h*m2; b) adding under stirring a molten thickening agent having a melting point in a range from 30 to 70°C, while maintaining the catalyst suspension in oil at a temperature such that said thickening agent solidifies on contact with said suspension.
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公开(公告)号：EP2054451B1
公开(公告)日：2013-09-18
申请号：EP07788219.9
申请日：2007-08-03
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： PEDRIALI, Lorella , FLAMMINI, Roberto , BENETTI, Derenzio , FAIT, Anna , PATRONCINI, Giovanni
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公开(公告)号：EP2176300B1
公开(公告)日：2012-08-22
申请号：EP08785939.3
申请日：2008-07-07
Applicant: Basell Poliolefine Italia S.r.l.
Inventor： GOVONI, Gabriele , PATRONCINI, Giovanni
CPC classification number: C08F10/06 , C08F210/06 , C08F2/001 , C08F4/6492 , C08F2/005 , C08F4/651 , C08F210/16
Abstract: A process for the polymerization of olefins comprising: a) polymerizing at least a liquid olefin monomer in a polymerization reactor to form a polymerization slurry comprising a polyolefin and said liquid monomer; b) continuously transferring the polymerization slurry from the polymerization reactor to a flash chamber by means of a transfer line comprising a pipe where a turbulent flow of a tri-phase stream comprising polymer, liquid monomers, and gaseous monomers is established; c) separating the evaporated monomer from the polymer in said flash chamber; the process being characterized in that an anti-fouling agent in a liquid form is continuously introduced upstream the inlet of said pipe of step (b).
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