Process for continuously producing water-absorbing polymer particles
    45.
    发明授权
    Process for continuously producing water-absorbing polymer particles 有权
    连续生产吸水性聚合物颗粒的方法

    公开(公告)号:US08785583B2

    公开(公告)日:2014-07-22

    申请号:US13484849

    申请日:2012-05-31

    CPC classification number: B01J19/28 C08F220/28

    Abstract: A process for continuously producing water-absorbing polymer particles by polymerizing a monomer solution comprising acrylic acid and/or salts thereof, wherein the acrylic acid supplied has a dimeric acrylic acid content of at least 0.02% by weight and the dimeric acrylic acid content is kept essentially constant.

    Abstract translation: 通过聚合包含丙烯酸和/或其盐的单体溶液连续生产吸水性聚合物颗粒的方法,其中所提供的丙烯酸的二聚丙烯酸含量为至少0.02重量%,并保持二聚丙烯酸含量 基本不变。

    Process for producing water-absorbing polymer particles
    47.
    发明授权
    Process for producing water-absorbing polymer particles 有权
    生产吸水性聚合物颗粒的方法

    公开(公告)号:US08329844B2

    公开(公告)日:2012-12-11

    申请号:US12988776

    申请日:2009-04-14

    Abstract: A process for producing water-absorbing polymer particles, wherein a polymer gel is removed from a polymerization reactor, stored intermediately as a particulate polymer gel in a delay vessel, removed by means of a first conveying device at the lower end of the delay vessel and dried, the intermediately stored particulate polymer gel being conveyed within the delay vessel by means of at least one second conveying device above the first conveying device in the direction of the first conveying device.

    Abstract translation: 一种生产吸水性聚合物颗粒的方法,其中聚合物凝胶从聚合反应器中除去,作为延迟容器中的颗粒状聚合物凝胶中间存储,借助于在延迟容器的下端处的第一输送装置除去, 干燥后,通过在第一输送装置上方的第一输送装置的方向上的至少一个第二输送装置在延迟容器内输送中间储存的颗粒状聚合物凝胶。

    Process For Producing Water-Absorbing Polymer Particles
    48.
    发明申请
    Process For Producing Water-Absorbing Polymer Particles 有权
    生产吸水性聚合物颗粒的方法

    公开(公告)号:US20120283401A1

    公开(公告)日:2012-11-08

    申请号:US13463545

    申请日:2012-05-03

    CPC classification number: A61L15/24 A61L15/60 C08F6/008 C08F222/1006 C08L33/08

    Abstract: A process for producing water-absorbing polymer particles, comprising polymerization of a monomer solution or suspension, drying the resulting polymer gel, and grinding and classifying the dried polymer gel, wherein the grinding is performed by means of a multistage roll mill, the first milling gap has a width of 500 to 5000 μm, the product mass flow passing through the first milling gap is conducted through a magnetic separator to the second milling gap, and the second milling gap has a smaller gap width than the first milling gap.

    Abstract translation: 一种生产吸水性聚合物颗粒的方法,包括单体溶液或悬浮液的聚合,干燥所得的聚合物凝胶,以及研磨和分级干燥的聚合物凝胶,其中通过多级辊磨机进行研磨,第一次研磨 间隙宽度为500〜5000μm,通过第一铣削间隙的产品质量流通过磁选机进入第二铣削间隙,第二铣削间隙具有比第一铣削间隙小的间隙宽度。

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