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    PROCESS FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION
    3.
    发明申请
    PROCESS FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION 有权
    通过聚合单体溶液的水溶液生产吸水聚合物颗粒的方法

    公开(公告)号：US20160332140A1

    公开(公告)日：2016-11-17

    申请号：US15112445

    申请日：2015-01-14

    申请人： BASF SE

    发明人： Stephan Bauer ,  Norbert Herfert ,  Jürgen Freiberg ,  Rudolf Schliwa ,  Karl J. Possemiers ,  Robert Bayer

    IPC分类号： B01J20/26 ,  B01J20/28 ,  C08L33/08 ,  B01J20/30

    CPC分类号： B01J20/267 ,  B01J20/28016 ,  B01J20/3085 ,  C08F2/01 ,  C08F2/34 ,  C08F6/001 ,  C08F6/008 ,  C08L33/02 ,  C08L33/08 ,  C08L101/14 ,  C08F220/06 ,  C08F2222/1026

    摘要： The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase in a reactor comprising a gas distributor (3), a reaction zone (5) and a fluidized bed (27), the gas leaving the reactor is treated in a condenser column (12) with an aqueous solution, the treated gas leaving the condenser column (12) is recycled at least partly to the fluidized bed (27), wherein the gas leaving the condenser column (12) comprises from 0.05 to 0.3 kg steam per kg dry gas and the steam content of the gas entering the gas distributor (3) is less than 80% of the steam content of the gas leaving the condenser column (12).

    摘要翻译： 本发明涉及通过在包括气体分配器（3），反应区（5）和流化床（27）的反应器中聚合在周围加热气相中的单体溶液的液滴来生产吸水性聚合物颗粒的方法 ），离开反应器的气体在具有水溶液的冷凝器塔（12）中处理，离开冷凝器塔（12）的处理气体至少部分地再循环到流化床（27），其中离开冷凝器的气体 塔（12）包含0.05至0.3kg蒸汽/ kg干燥气体，并且进入气体分配器（3）的气体的蒸汽含量小于离开冷凝塔（12）的气体蒸汽含量的80％。

    Apparatus for addition of droplets of a monomer solution to a reactor
    5.
    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
    6.
    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.