1.
    发明专利
    未知

    公开(公告)号:DE50006844D1

    公开(公告)日:2004-07-22

    申请号:DE50006844

    申请日:2000-10-27

    Applicant: BASF AG

    Abstract: Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the BF3/cocatalyst complex being produced in situ by adding BF3 and cocatalyst to a reaction stream, wherein BF3 and oxygen-containing cocatalyst are added to the reaction stream via a common binary nozzle comprising an outlet for BF3 and an outlet for the oxygen-containing cocatalyst. The invention also describes a binary nozzle having a centrally arranged outlet for the catalyst.

    5.
    发明专利
    未知

    公开(公告)号:AT269365T

    公开(公告)日:2004-07-15

    申请号:AT00969556

    申请日:2000-10-27

    Applicant: BASF AG

    Abstract: Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the BF3/cocatalyst complex being produced in situ by adding BF3 and cocatalyst to a reaction stream, wherein BF3 and oxygen-containing cocatalyst are added to the reaction stream via a common binary nozzle comprising an outlet for BF3 and an outlet for the oxygen-containing cocatalyst. The invention also describes a binary nozzle having a centrally arranged outlet for the catalyst.

    6.
    发明专利
    未知

    公开(公告)号:AT267220T

    公开(公告)日:2004-06-15

    申请号:AT00975937

    申请日:2000-10-27

    Applicant: BASF AG

    Abstract: Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.

    METHOD FOR PRODUCING HIGHLY REACTIVE POLYISOBUTENES

    公开(公告)号:CA2389249A1

    公开(公告)日:2001-05-03

    申请号:CA2389249

    申请日:2000-10-27

    Applicant: BASF AG

    Abstract: The invention relates to a continuous method for producing polyisobutene by polymerization of isobutene in the presence of a catalyst from boron trifluoride and at least one cocatalyst in an inert organic solvent. The inventive method comprises the steps of a) discharging, in a continuous manner, a part of the reaction mixture obtained by the polymerization from t he polymerization reactor, b) removing the catalyst from the discharged materia l and/or deactivating it during the discharge, c) removing the solvent and non - reacted isobutene from the discharged material and returning it to the polymerization reactor. The inventive method is further characterized in tha t the returned solvent and optionally the isobutene are first washed with wate r and dried before they are returned to the polymerization reactor.

    9.
    发明专利
    未知

    公开(公告)号:DE50006524D1

    公开(公告)日:2004-06-24

    申请号:DE50006524

    申请日:2000-10-27

    Applicant: BASF AG

    Abstract: Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.

    10.
    发明专利
    未知

    公开(公告)号:DE19952030A1

    公开(公告)日:2001-05-03

    申请号:DE19952030

    申请日:1999-10-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for the continuous production of polyisobutenes by cationic polymerization of isobutenes and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst preferably selected from oxygen-containing compounds, whereby the BF3/cocatalyst complex is generated in situ in reaction stream by addition of BF3 and a cocatalyst. The invention is characterized in that BF3 and said oxygen-containing cocatalyst are added to the reaction stream via a common two-material nozzle with an outlet for BF3 and an outlet for said oxygen-containing cocatalyst. The invention also relates to a two-material nozzle with a centrally located outlet for the catalyst.

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