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    VERFAHREN ZUR HERSTELLUNG VON POLYISOBUTEN HOHER QUALITÄT
    21.
    发明授权
    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：EP1910430B1

    公开(公告)日：2009-09-30

    申请号：EP06762534.3

    申请日：2006-07-11

    Applicant: BASF SE

    Inventor： BODE, Andreas ,  RACHWALSKY, Uwe ,  SAUER, Friedrich ,  SCHAUSS, Eckard ,  VOLLAND, Marco-Christian ,  WETTLING, Thomas

    IPC: C08F10/10 ,  C08F4/14

    CPC classification number: B01F3/1221 ,  B01F7/00758 ,  B01J19/1806 ,  C08F110/10 ,  C08F2/01 ,  C08F4/14 ,  C08F2500/03

    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inlet located in the peripheral wall, and a finely dispersed mixture of the organic phase and the terminating agent is withdrawn via an outlet located in the peripheral wall and is delivered to a phase separation process.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.

    ABSCHEIDEVORRICHTUNG MIT EINEM GRAVITATIONSVORABSCHEIDER GEFOLGT VON EINEM ZENTRIFUGALABSCHEIDER
    29.
    发明公开
    ABSCHEIDEVORRICHTUNG MIT EINEM GRAVITATIONSVORABSCHEIDER GEFOLGT VON EINEM ZENTRIFUGALABSCHEIDER 有权
    重力PRE谢德分离后面有分隔

    公开(公告)号：EP2512684A1

    公开(公告)日：2012-10-24

    申请号：EP10798032.8

    申请日：2010-12-13

    Applicant: BASF SE

    Inventor： HALPAP, Jörg ,  BODE, Andreas ,  HERRMANN, Eberhard ,  LINSENBÜHLER, Markus ,  SACHWEH, Bernd ,  PILZ, Michael ,  MERTLER, Michael ,  MEIER, Matthias Wilhelm

    IPC: B04C5/04 ,  B04C5/13 ,  B04C5/181 ,  B04C9/00

    CPC classification number: B01D45/12 ,  B04C5/04 ,  B04C5/13 ,  B04C5/181 ,  B04C9/00

    Abstract: The invention relates to a device for precipitating liquid droplets from a feed gas flow containing said droplets, comprising a residence time tank (1) for preliminarily precipitating part of the liquid droplets from the feed gas flow under the effect of gravity, having an inlet line (2) for the feed gas flow into the residence time tank (1) and a discharge line (3) for the gas flow having reduced liquid droplet content and flowing out of the residence time tank (1), and tangential feeding of same to a centrifugal drop separator (4), wherein the discharge line (3) is disposed in the upper region of the residence time tank (1) and is spaced apart from the inlet line (2) to the extent that the residence time of the gas flow in the residence time tank (1) is a maximum, and having a discharge line (5) for the fluid precipitated in the residence time tank (1) on the floor of same, and wherein an axially symmetrical apparatus having a vertical longitudinal axis and circular cross section, having a jacket and hoods at the upper and lower ends of the jacket, is used as the centrifugal drop separator (4), and wherein a discharge fitting (6) for the liquid precipitated in the centrifugal drop separator (4) is disposed in the region of the bottom hood of the centrifugal drop separator (4), dimensioned such that said fitting is immersed in the liquid standing on the floor of the residence time tank (1) or in a liquid standing in a cup in the interior of the residence time tank (1), and having a gas outlet fitting (7) at the upper end of the centrifugal drop separator (4) for the gas flow further purified in the centrifugal drop separator (4),and wherein both the feeding of the gas flow having reduced liquid droplet content from the residence time tank (1) through the discharge line (3) and the draining of the liquid precipitated in the centrifugal drop separator (4) take place via the line (6) into the residence time tank (1) without the use of pumps and shutoff valves.

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