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公开(公告)号：BR9805747A
公开(公告)日：1999-12-14
申请号：BR9805747
申请日：1998-12-30
Applicant: BASF AG
Inventor： LANGE ARMIN , MICKLITZ WOLFGANG , KARER RAINER , EVERTZ KASPAR , MIHAN SHAHRAM , FEINDT HANS-JACOB , HECKER MANFRED , BAUER PETER , ROSENDORFER PHILIPP
IPC: C08K13/02 , C08F2/00 , C08F2/34 , C08F6/02 , C08F10/00 , C08F10/02 , C08F10/06 , C08F210/16 , C08F2/42
Abstract: Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en and oct-1-en in the a polymerization reactor; and endowing a catalyst poison with boiling point higher than a circle gas pipeline, and molecular weight greater than 100 g/mol at a position after the reactor, but before the cooler and compressor. Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene and/or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en or oct-1-en, in the polymerization zone of a gas phase polymerization reactor at 30-125[deg]C and 1-100 bar in the gaseous phase in a finely divided polymer bed, in the presence of a metallocene catalyst in carrier form polymer, where a reactor gas is lead into the circle gas pipeline for the removal of the polymerization heat; and endowing a catalyst poison with boiling point higher than circle gas pipeline and molecular weight greater than 100 g/mol at a position after the reactor but before the cooler and compressor, for preventing polymer linings, such that the productivity of the catalyst is not essentially affected in the reactor.
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2.发明专利
公开(公告)号：CA2312092A1
公开(公告)日：1999-06-17
申请号：CA2312092
申请日：1998-11-26
Applicant: BASF AG
Inventor： HECKER MANFRED , LANGE ARMIN , ROSENDORFER PHILIPP , FEINDT HANS-JACOB , EVERTZ KASPAR , BAUER PETER , SCHWEIER GUNTHER , MICKLITZ WOLFGANG , KARER RAINER
Abstract: The invention relates to a continuous gas phase fluidization method for producing ethylene homopolymerisates and copolymerisates with a density (d) of 0.87 to 0.97 g/cm3. According to said method, ethylene or mixtures of ethylene and C3- to C8-.alpha.-monoolefins are (co)polymerised in the polymerisation zone of a gas phase fluidized bed reactor at pressures of 1 to 100 bar and at temperatures of 30 to 125 ~C in the gas phase in an intermixed bed of fine particulate polymerisate in the presence of a supported chromium catalyst. The polymerisation heat produced is evacuated by cooling the reactor gas, said reactor gas being guided in a closed circuit, and the resulting (co)polymerisate is transferred out of the gas phase fluidized bed reactor. In order to produce a (co)polymerisate of a pre-selected density (d), the (co)polymerisation is carried out at a temperature within a range limited by an upper envelope of equation (I) and a lower envelope of equation (II), the variables in said equations having the following meanings: TH = the highest reaction temperature in ~C; TN = the lowest reaction temperature in ~C; and d'= the numerical value of the density (d) of the (co)polymerisate to be produced.
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公开(公告)号：AU7428798A
公开(公告)日：1998-11-13
申请号：AU7428798
申请日：1998-04-02
Applicant: BASF AG
Inventor： MIHAN SHAHRAM , LANGE ARMIN , ROSENDORFER PHILIPP , HACK JOHANNES
Abstract: alpha-Olefins are polymerized in the gas phase at from 30 to 150° C. and a pressure of from 5 to 80 bar using a catalyst or a catalyst mixture containing as antistatic agent from 0.1 to 5% by weight of ZnO and/or anhydrous MgO, based on the total amount of the catalyst mixture, except for a process in which the catalyst mixture comprises a chromium catalyst and MgO-supported Ziegler catalyst which is modified with an alkene and with alkylaluminum hydride and also comprises free MgO and the total amount of the MgO is not less than 2% by weight of the catalyst mixture.
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公开(公告)号：NO995056L
公开(公告)日：1999-10-15
申请号：NO995056
申请日：1999-10-15
Applicant: BASF AG
Inventor： MIHAN SHAHRAM , LANGE ARMIN , ROSENDORFER PHILIPP , HACK JOHANNES
Abstract: alpha-Olefins are polymerized in the gas phase at from 30 to 150° C. and a pressure of from 5 to 80 bar using a catalyst or a catalyst mixture containing as antistatic agent from 0.1 to 5% by weight of ZnO and/or anhydrous MgO, based on the total amount of the catalyst mixture, except for a process in which the catalyst mixture comprises a chromium catalyst and MgO-supported Ziegler catalyst which is modified with an alkene and with alkylaluminum hydride and also comprises free MgO and the total amount of the MgO is not less than 2% by weight of the catalyst mixture.
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Patent Agency Ranking
公开(公告)号：NO995056D0
公开(公告)日：1999-10-15
申请号：NO995056
申请日：1999-10-15
Applicant: BASF AG
Inventor： MIHAN SHAHRAM , LANGE ARMIN , ROSENDORFER PHILIPP , HACK JOHANNES
Abstract: alpha-Olefins are polymerized in the gas phase at from 30 to 150° C. and a pressure of from 5 to 80 bar using a catalyst or a catalyst mixture containing as antistatic agent from 0.1 to 5% by weight of ZnO and/or anhydrous MgO, based on the total amount of the catalyst mixture, except for a process in which the catalyst mixture comprises a chromium catalyst and MgO-supported Ziegler catalyst which is modified with an alkene and with alkylaluminum hydride and also comprises free MgO and the total amount of the MgO is not less than 2% by weight of the catalyst mixture.
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公开(公告)号：CA2286321A1
公开(公告)日：1998-10-29
申请号：CA2286321
申请日：1998-04-02
Applicant: BASF AG
Inventor： HACK JOHANNES , MIHAN SHAHRAM , LANGE ARMIN , ROSENDORFER PHILIPP
Abstract: The invention relates to a method for polymerizing .alpha.-olefins in a gaseous phase at a temperature ranging from 30 to 150 ~C and at a pressure between 5 and 80 bars with a catalyst or a catalyst mixture which contains, as an antistatic agent, 0.1-5 wt. % ZnO and/or water-free MgO in relation to the total catalyst mixture. The inventive method excludes a method according to which the catalyst mixture contains a chrome catalyst and an MgO-based Ziegler catalyst which is modified with an alkene and alkylaluminium hydride and contains free MgO, the total MgO volume being no less than 2 wt. % of the catalyst mixture.
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公开(公告)号：BR9813430A
公开(公告)日：2000-10-17
申请号：BR9813430
申请日：1998-11-26
Applicant: BASF AG
Inventor： BAUER PETER , LANGE ARMIN , KARER RAINER , ROSENDORFER PHILIPP , HECKER MANFRED , SCHWEIER GUENTHER , MICKLITZ WOLFGANG , EVERTZ KASPAR , FEINDT HANS-JACOB
Abstract: A continuous vapor-phase fluidized-bed process for the preparation of ethylene homopolymers and copolymers having a density of from 0.87 to 0.97 g/cm in which ethylene or mixtures of ethylene and C3-C8 a-monoolefins are (co)polymerized in the presence of a supported chromium catalyst in the polymerization zone of a vapor-phase fluidized-bed reactor under pressures ranging from 1 to 100 bar and at temperatures ranging from 30° to 125° C. in the vapor phase in an agitated bed of bulk material comprising particulate polymer, the resultant heat of polymerization is removed by cooling the recirculated reactor gas and the resulting (co)polymer is removed from the vapor-phase fluidized-bed reactor, wherein, for the preparation of a (co)polymer of a specific density d, the (co)polymerization is carried out at a temperature which is in a range restricted by an upper envelope defined by equation Iand a lower envelope defined by equation IIin which the variables have the following meanings:TH is the highest reaction temperature in ° C.;TL is the lowest reaction temperature in ° C.;d' is the numerical value of the density d of the (co)polymer to be synthesized.
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公开(公告)号：NO995056A
公开(公告)日：1999-10-15
申请号：NO995056
申请日：1999-10-15
Applicant: BASF AG
Inventor： MIHAN SHAHRAM , LANGE ARMIN , ROSENDORFER PHILIPP , HACK JOHANNES
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公开(公告)号：AU1004199A
公开(公告)日：1999-07-22
申请号：AU1004199
申请日：1999-01-04
Applicant: BASF AG
Inventor： LANGE ARMIN , MICKLITZ WOLFGANG , KARER RAINER , EVERTZ KASPAR , MIHAN SHAHRAM , FEINDT HANS-JACOB , HECKER MANFRED , BAUER PETER , ROSENDORFER PHILIPP
Abstract: Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en and oct-1-en in the a polymerization reactor; and endowing a catalyst poison with boiling point higher than a circle gas pipeline, and molecular weight greater than 100 g/mol at a position after the reactor, but before the cooler and compressor. Continuous gas phase polymerization for producing ethylene homopolymers and -copolymers, comprises polymerizing ethylene and/or monoolefin from but-1-en, pent-1-en, 2-methylpentene, hex-1-en, hept-1-en or oct-1-en, in the polymerization zone of a gas phase polymerization reactor at 30-125[deg]C and 1-100 bar in the gaseous phase in a finely divided polymer bed, in the presence of a metallocene catalyst in carrier form polymer, where a reactor gas is lead into the circle gas pipeline for the removal of the polymerization heat; and endowing a catalyst poison with boiling point higher than circle gas pipeline and molecular weight greater than 100 g/mol at a position after the reactor but before the cooler and compressor, for preventing polymer linings, such that the productivity of the catalyst is not essentially affected in the reactor.
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