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    DEVICE AND METHOD FOR PRODUCING POWDERED POLYMERS
    1.
    发明申请
    DEVICE AND METHOD FOR PRODUCING POWDERED POLYMERS 审中-公开

    公开(公告)号：US20200231711A1

    公开(公告)日：2020-07-23

    申请号：US16488659

    申请日：2018-02-26

    申请人： BASF SE

    发明人： Stephan Bauer ,  Markus Toennessen ,  Christophe Bauduin ,  Katrin Baumann ,  Marco Krüger ,  Andreas Daiss ,  Markus Muehl

    IPC分类号： C08F2/01 ,  B01J19/24 ,  B01J8/24 ,  B01J19/18 ,  B01J19/00 ,  C08F220/14

    摘要： An apparatus for production of pulverulent polymers having a reactor for droplet polymerization with an apparatus for dropletization of a monomer solution for the preparation of the polymer. The apparatus for dropletization has holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point at the periphery of the reactor and a fluidized bed, wherein at least one of the following is fulfilled: an apparatus for increasing turbulence in the gas flow is disposed in the region of the apparatus for dropletization of the monomer solution, an apparatus for increasing turbulence in the gas flow is disposed in the region of the addition point for the gas, the addition point for gas is configured such that elevated turbulence is generated. A process for producing pulverulent polymers, in which an increase in flow turbulence in the gas flow in the region of the apparatus for dropletization also is disclosed.

    Device and method for producing powdered polymers
    5.
    发明授权
    Device and method for producing powdered polymers 有权

    公开(公告)号：US11332550B2

    公开(公告)日：2022-05-17

    申请号：US16488659

    申请日：2018-02-26

    申请人： BASF SE

    发明人： Stephan Bauer ,  Markus Toennessen ,  Christophe Bauduin ,  Katrin Baumann ,  Marco Krüger ,  Andreas Daiss ,  Markus Muehl

    IPC分类号： B01J8/24 ,  B01J19/00 ,  B01J19/18 ,  B01J19/24 ,  C08F2/01 ,  C08F220/14

    摘要： An apparatus for production of pulverulent polymers having a reactor for droplet polymerization with an apparatus for dropletization of a monomer solution for the preparation of the polymer. The apparatus for dropletization has holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point at the periphery of the reactor and a fluidized bed, wherein at least one of the following is fulfilled: an apparatus for increasing turbulence in the gas flow is disposed in the region of the apparatus for dropletization of the monomer solution, an apparatus for increasing turbulence in the gas flow is disposed in the region of the addition point for the gas, the addition point for gas is configured such that elevated turbulence is generated. A process for producing pulverulent polymers, in which an increase in flow turbulence in the gas flow in the region of the apparatus for dropletization also is disclosed.

    Apparatus for producing pulverulent poly(meth)acrylate
    6.
    发明授权
    Apparatus for producing pulverulent poly(meth)acrylate 有权

    公开(公告)号：US10252238B2

    公开(公告)日：2019-04-09

    申请号：US15554436

    申请日：2016-02-25

    申请人： BASF SE

    发明人： Robert Bayer ,  Jürgen Freiberg ,  Rudolf Schliwa ,  Marco Krüger

    IPC分类号： B01J8/12 ,  C08F2/01 ,  B01J8/08 ,  B01J4/00 ,  C08F120/06

    摘要： An apparatus for producing pulverulent poly(meth)acrylate in a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate having holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the circumference of the reactor and a fluidized bed, and above the gas withdrawal point the reactor has a region having a constant hydraulic internal diameter and below the gas withdrawal point the reactor has a hydraulic internal diameter that steadily decreases. The reactor has a heating means in the region having a steadily decreasing hydraulic internal diameter.

    Apparatus for addition of droplets of a monomer solution to a reactor
    8.
    发明授权
    Apparatus for addition of droplets of a monomer solution to a reactor 有权

    公开(公告)号：US10150091B2

    公开(公告)日：2018-12-11

    申请号：US15320776

    申请日：2015-06-16

    申请人： BASF SE

    发明人： Andreas Daiss ,  Robert Bayer ,  Rudolf Schliwa ,  Jürgen Freiberg ,  Karl J. Possemiers ,  Marco Krüger

    IPC分类号： B01J4/00 ,  C08F120/14

    摘要： An apparatus for addition of droplets of a monomer solution for production of poly(meth)acrylate to a reactor for droplet polymerization, comprising at least one channel or a dropletizer head having, at its base, holes through which the solution is dropletized into the reactor, at least one of the following features being fulfilled: (a) the ratio of the area covered by the channels or the dropletizer head in the reactor relative to the area which is defined by the circumference of a line along the outermost holes is less than 50%, (b) the number of holes relative to the area which is defined by the circumference of a line along the outermost holes is within a range from 100 to 1000 holes/m2.

    Apparatus for introduction of droplets of a monomer solution into a reactor
    9.
    发明授权
    Apparatus for introduction of droplets of a monomer solution into a reactor 有权

    公开(公告)号：US09925511B2

    公开(公告)日：2018-03-27

    申请号：US15320771

    申请日：2015-06-23

    申请人： BASF SE

    发明人： Andreas Daiss ,  Robert Bayer ,  Rudolf Schliwa ,  Jürgen Freiberg ,  Karl J. Possemiers ,  Marco Krüger

    IPC分类号： B01J19/06 ,  B01J4/00 ,  B01J19/24 ,  C08F20/18

    CPC分类号： B01J19/06 ,  B01J4/004 ,  B01J8/1818 ,  B01J19/24 ,  B01J2208/00371 ,  B01J2208/0092 ,  B01J2208/00938 ,  B01J2219/24 ,  C08F20/18

    摘要： An apparatus for introducing droplets of a monomer solution for production of poly(meth)acrylate into a reactor for droplet polymerization, comprising at least one channel or a dropletizer head, the channel or the dropletizer head being sealed at its base by a dropletizer plate, the dropletizer plate having holes through which the monomer solution is introduced into the reactor, and the dropletizer plate being configured such that holes that, in an axially symmetric dropletizer plate or in an annular dropletizer plate or in one configured as a ring segment, are not on a center line of the dropletizer plate or, in the case of a circular dropletizer plate, are not at the center of the dropletizer plate are aligned such that monomer solution is introduced through the holes into the reactor at an angle to the vertical, and the holes in the case of a radial alignment of axially symmetric dropletizer plates being aligned such that the angle at which the monomer solution is introduced into the reactor decreases in the direction of the axis of the reactor and, in the case of dropletizer plates arranged parallel to one another or of concentrically arranged dropletizer plates, each being aligned on a line parallel to the center line or line running concentrically about the center, such that the angle at which the monomer solution is introduced into the reactor is constant.