公开(公告)号：US20170246607A1

公开(公告)日：2017-08-31

申请号：US15320773

申请日：2015-06-10

Applicant: BASF SE

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

IPC: B01J8/18 ,  C08F120/14 ,  B01J8/24

CPC classification number: B01J8/1872 ,  B01J4/001 ,  B01J8/24 ,  B01J2208/00893 ,  B01J2219/00247 ,  C08F2/01 ,  C08F120/14

Abstract: An apparatus for production of pulverulent poly(meth)acrylate, comprising a reactor or droplet polymerization, having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate, having holes through which the solution is dropletized, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the periphery of the reactor and a fluidized bed. The outermost holes through which the solution is dropletized are positioned such that a droplet falling vertically downward falls into the fluidized bed and the hydraulic diameter at the level of the midpoint between the apparatus for dropletization and the gas withdrawal point is at least 10% greater than the hydraulic diameter of the fluidized bed.

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.

公开(公告)号：US20170225138A1

公开(公告)日：2017-08-10

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

CPC classification number: B01J4/001 ,  B01J2204/002 ,  B01J2208/00893 ,  B01J2219/00247 ,  C08F2/01 ,  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.

公开(公告)号：US20170037172A1

公开(公告)日：2017-02-09

申请号：US15299922

申请日：2016-10-21

Applicant: BASF SE

Inventor： Uwe Stueven ,  Matthias Weismantel ,  Wilfried Heide ,  Marco Krüger ,  Volker Seidl ,  Stefan Blei ,  Dennis Loesch ,  Rüdiger Funk ,  Annemarie Hillebrecht

IPC: C08F222/10 ,  A61L15/24 ,  B29B9/10 ,  A61L15/60

CPC classification number: C08F222/10 ,  A61L15/24 ,  A61L15/60 ,  B29B9/10 ,  B29K2033/04 ,  B29K2995/0092 ,  C08F2/34 ,  C08F220/06 ,  C08F222/1006 ,  C08F222/385 ,  C08F2222/1026 ,  C08F2400/00 ,  C08F2500/24 ,  Y10T428/2982

Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.

Abstract translation: 一种制备具有高渗透性的吸水聚合物珠粒的方法，该方法通过在包围液滴的气相中聚合包含含有酸基团的单体的单体溶液的液滴，其中所述单体溶液包含多价阳离子，并且所述聚合物珠的平均直径为 至少150μm。

公开(公告)号：US20140302321A1

公开(公告)日：2014-10-09

申请号：US14266367

申请日：2014-04-30

Applicant: BASF SE

Inventor： Uwe Stueven ,  Matthias Weismantel ,  Wilfried Heide ,  Marco Krüger ,  Volker Seidl ,  Stefan Blei ,  Dennis Lösch ,  Rüdiger Funk ,  Annemarie Hillebrecht

IPC: B01J10/00 ,  C08F220/06

CPC classification number: B01J10/002 ,  A61L15/24 ,  A61L15/60 ,  C08F2/00 ,  C08F2/10 ,  C08F2/44 ,  C08F220/06 ,  C08F222/1006 ,  C08L33/02

Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm.

Abstract translation: 一种制备具有高渗透性的吸水聚合物珠粒的方法，该方法是在围绕液滴的气相中聚合单体溶液的液滴，其中将水不溶性无机盐悬浮在单体溶液中，聚合物珠粒的平均直径为 至少150微米。

公开(公告)号：US20140038817A1

公开(公告)日：2014-02-06

申请号：US14013224

申请日：2013-08-29

Applicant: BASF SE

Inventor： Marco Krüger ,  Stefan Blei ,  Wilfried Heide ,  Matthias Weismantel ,  Uwe Stueven

IPC: B01J20/26

CPC classification number: B01J20/261 ,  C08F2/01 ,  C08F2/10 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore.

Abstract translation: 通过在反应室中聚合周围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，其中单体溶液通过至少一个孔计量到反应室中，直径为210-290 每个孔的妈妈，每个孔的计量率为0.9至5kg / h。

公开(公告)号：US20130316177A1

公开(公告)日：2013-11-28

申请号：US13957073

申请日：2013-08-01

Applicant: BASF SE

Inventor： Dennis Lösch ,  Matthias Weismantel ,  Marco Krüger ,  Antje Ziemer

IPC: C08F220/10

Abstract: A process for preparing water-absorbing polymer beads by polymerizing droplets comprising at least one monomer in a gas phase surrounding the droplets, the droplets being obtained by enveloping a first monomer solution with a second monomer solution and polymerizing the second monomer solution and polymerizing to give a more highly crosslinked polymer than the first monomer solution.

Abstract translation: 通过在包围液滴的气相中聚合包含至少一种单体的液滴来制备吸水聚合物珠粒的方法，所述液滴通过用第二单体溶液包封第一单体溶液并聚合第二单体溶液并聚合得到， 比第一单体溶液更高度交联的聚合物。

公开(公告)号：US20180326392A1

公开(公告)日：2018-11-15

申请号：US15774620

申请日：2016-11-16

Applicant: BASF SE

Inventor： Marco Krüger ,  Karl Possemiers ,  Rudolf Schliwa ,  Robert Bayer

IPC: B01J19/24 ,  B01J19/06 ,  B01J8/18 ,  B01J8/22 ,  B01J8/00 ,  C08F120/14

CPC classification number: B01J19/245 ,  B01J4/002 ,  B01J8/0055 ,  B01J8/1818 ,  B01J8/22 ,  B01J19/06 ,  B01J19/24 ,  B01J2208/00761 ,  B01J2219/185 ,  C08F120/14

Abstract: The invention relates to an apparatus for producing pulverulent poly(meth)acrylate, comprising a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the preparation 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, the reactor comprising a reactor shell between the apparatus for dropletization and the gas withdrawal point and having, above the fluidized bed, a region having decreasing hydraulic diameter toward the fluidized bed and having a maximum hydraulic diameter greater than the mean hydraulic diameter of the reactor shell, and the reactor shell projecting into the region having decreasing hydraulic diameter, so as to form an annular duct between the outer wall of the reactor shell and the wall by which the region having decreasing hydraulic diameter is bounded, and the at least one gas withdrawal point being disposed in the annular duct, wherein the ratio of the horizontal area of the annular duct to the horizontal area enclosed by the reactor shell is in the range from 0.3 to 5.

公开(公告)号：US09073040B2

公开(公告)日：2015-07-07

申请号：US13870599

申请日：2013-04-25

Applicant: BASF SE

Inventor： Rainer Dobrawa ,  Thomas Daniel ,  Uwe Stueven ,  Marco Krüger ,  Francisco Javier Lopez Villanueva ,  Norbert Herfert ,  Karin Flore ,  Stefan Blei ,  Michael A. Mitchell

IPC: B32B5/16 ,  C08L31/02 ,  C08L33/04 ,  B01J20/26 ,  A61L15/60 ,  C08F2/10 ,  C08F220/06 ,  B01J20/30 ,  C08F222/10

CPC classification number: B01J20/26 ,  A61L15/60 ,  B01J20/264 ,  B01J20/3085 ,  C08F2/10 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/249958 ,  Y10T428/249981 ,  Y10T428/254 ,  Y10T428/2982 ,  Y10T428/31935

Abstract: 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 and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.

Abstract translation: 本发明涉及一种通过在周围加热气相中聚合单体溶液的液滴并使气体并流通过聚合室流过气体聚合物颗粒的方法，其中离开聚合室的气体的温度为130℃ 聚合室内的气体速度为至少0.5m / s，通过使用具有多个孔的液滴板产生液滴。

公开(公告)号：US09029485B2

公开(公告)日：2015-05-12

申请号：US14013224

申请日：2013-08-29

Applicant: BASF SE

Inventor： Marco Krüger ,  Stefan Blei ,  Wilfried Heide ,  Matthias Weismantel ,  Uwe Stueven

IPC: C08F2/01 ,  C08F220/06 ,  B01J20/26 ,  C08F2/10 ,  C08F222/10

CPC classification number: B01J20/261 ,  C08F2/01 ,  C08F2/10 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore.

Abstract translation: 通过在反应室中聚合周围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，其中单体溶液通过至少一个孔计量到反应室中，直径为210-290 每孔数μm，孔径为0.9〜5 kg / h。