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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

    Applicant: BASF SE

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

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

    Abstract: 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 A PULVERULENT PRODUCT AND USE THEREOF
    2.
    发明公开
    APPARATUS FOR PRODUCING A PULVERULENT PRODUCT AND USE THEREOF 审中-公开

    公开(公告)号：US20230149871A1

    公开(公告)日：2023-05-18

    申请号：US17920785

    申请日：2021-04-22

    Applicant: BASF SE

    Inventor： Sebastian Marius Raupp ,  Sylvia Bertha ,  Andreas Daiss ,  Marco Krueger

    IPC: B01J2/04 ,  C08F6/10

    CPC classification number: B01J2/04 ,  C08F6/10

    Abstract: The invention relates to an apparatus for producing a pulverulent product, comprising a device for dropletization (5) of a liquid phase, an addition point (15) for a gas above the device for dropletization (5), at least one gas withdrawal point (19) on the circumference of the apparatus (1), a solid withdrawal point (12) and a tower shell (13) between the device for dropletization (5) and the gas withdrawal point (19) and having, above the solid withdrawal point (12), a region (11) having at least partly a decreasing hydraulic diameter toward the solid withdrawal point (12) and having a maximum hydraulic diameter greater than the mean hydraulic diameter of the tower shell (13), and the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter such that an annular duct (23) is formed between the part of the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter and the upper part (27) of the region having at least partly a decreasing hydraulic diameter, the at least one gas withdrawal point (19) being disposed in the annular duct (23), wherein the part of the tower shell (13) projecting into the region (11) having at least partly a decreasing hydraulic diameter and forming an inner wall of the annular duct (23) is made at least partly of a gas permeable material (29). The invention further relates to a use of the apparatus (1) for producing pulverulent poly(meth)acrylate.

    Device and method for producing powdered polymers
    3.
    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

    Applicant: BASF SE

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

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

    Abstract: 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 addition of droplets of a monomer solution to a reactor
    4.
    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

    Applicant: BASF SE

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

    IPC: B01J4/00 ,  C08F120/14

    Abstract: 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
    5.
    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

    Applicant: BASF SE

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

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

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

    Abstract: 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.

    Method for producing isocyanate
    6.
    发明授权
    Method for producing isocyanate 有权
    异氰酸酯的制造方法

    公开(公告)号：US08957245B2

    公开(公告)日：2015-02-17

    申请号：US13761997

    申请日：2013-02-07

    Applicant: BASF SE

    Inventor： Gerhard Olbert ,  Torsten Mattke ,  Carsten Knoesche ,  Andreas Daiss ,  Jens Denecke

    IPC: C07C263/00 ,  B01J12/00 ,  C07C263/10

    CPC classification number: B01J12/00 ,  C07C263/10 ,  C07C265/14

    Abstract: The invention relates to a process for preparing an isocyanate, which involves contacting fluid streams of amine, phosgene and inert medium in at least one mixing device, such that an inert medium stream is metered at least between one amine stream and one phosgene stream within the mixing device, and then reacting an amine with phosgene in a reaction chamber to form an isocyanate. In this process the inert medium stream is metered such that a point of first contact of the amine and the phosgene occurs at a distance from a surface of the mixing device, and a turbulent flow is present in the reaction chamber.

    Abstract translation: 本发明涉及一种制备异氰酸酯的方法，其包括使胺，光气和惰性介质的流体流在至少一个混合装置中接触，使得惰性介质流至少在一个胺流和一个光气流之间计量 混合装置，然后使胺与光气在反应室中反应以形成异氰酸酯。 在该方法中，计量惰性介质流，使得胺和光气的第一次接触点在与混合装置的表面相距一定距离处发生，并且反应室中存在湍流。

    APPARATUS FOR INTRODUCTION OF DROPLETS OF A MONOMER SOLUTION INTO A REACTOR
    9.
    发明申请
    APPARATUS FOR INTRODUCTION OF DROPLETS OF A MONOMER SOLUTION INTO A REACTOR 有权

    公开(公告)号：US20170232418A1

    公开(公告)日：2017-08-17

    申请号：US15320771

    申请日：2015-06-23

    Applicant: BASF SE

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

    IPC: B01J19/06 ,  C08F20/18 ,  B01J19/24

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

    Abstract: 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.

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