VERFAHREN ZUR HERSTELLUNG VON POLYISOBUTEN HOHER QUALITÄT
    7.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYISOBUTEN HOHER QUALITÄT 有权
    过程为生产高品质的聚异丁烯

    公开(公告)号:EP1910430A1

    公开(公告)日:2008-04-16

    申请号:EP06762534.3

    申请日:2006-07-11

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing polyisobutenes, in which isobutene is polymerized in liquid organic phase in the presence of a Lewis acid catalyst, the organic phase is mixed with an aqueous terminating agent in a dynamic mixer in order to terminate the reaction, said dynamic mixer comprising an axially symmetrical mixing chamber formed by a peripheral wall and two end walls as well as a mixing rotor that is rotatably driven therein. The organic phase is introduced via a first inlet located in the peripheral wall while the aqueous terminating agent is introduced via a second inlet located in the peripheral wall, and a finely dispersed mixture of the organic phase and the terminating agent is withdrawn via an outlet located in the peripheral wall and is delivered to a phase separation process. The inventive method is used for producing highly reactive polyisobutenes and/or polyisobutenes having a narrow molecular weight distribution.

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