Method for producing water absorbent resin

    公开(公告)号:US09796820B2

    公开(公告)日:2017-10-24

    申请号:US14136339

    申请日:2013-12-20

    摘要: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.

    Column-type solid-liquid countercurrent contact apparatus, solid particle washing apparatus, and method
    44.
    发明授权
    Column-type solid-liquid countercurrent contact apparatus, solid particle washing apparatus, and method 有权
    柱式固液逆流接触装置,固体颗粒洗涤装置及方法

    公开(公告)号:US09339778B2

    公开(公告)日:2016-05-17

    申请号:US13581946

    申请日:2011-02-23

    摘要: A column-type solid-liquid countercurrent contact apparatus, a washing apparatus for solid particles such as poly(arylene sulfide) (PAS) particles, a PAS manufacturing apparatus, a method of solid-liquid countercurrent contact, a method of washing solid particles such as PAS particles, and a method of manufacturing PAS, wherein a column top part, a column body part, and a column bottom part are included, the column body part is provided with a plurality of stirring chambers connected in the vertical direction and mutually divided by a ring-shaped partitioning plate, a paddle blade (a blade diameter/a diameter of the stirring chamber≧0.65 and the blade diameter/the diameter of the stirring chamber≦0.10) and a baffle are disposed at each of the plurality of stirring chambers, and a disc having a size covering at least a part of a communication opening positioned below the paddle blade is attached to a rotating shaft or to the paddle blade.

    摘要翻译: 柱型固液逆流接触装置,固体颗粒如聚(亚芳基硫醚)(PAS)颗粒的洗涤装置,PAS制造装置,固液逆流接触的方法,固体颗粒的洗涤方法 作为PAS颗粒,以及制造PAS的方法,其中包括塔顶部分,柱体部分和塔底部,柱体部分设置有沿竖直方向连接并相互分开的多个搅拌室 通过环形分隔板,在多个搅拌中的每一个处设置有桨叶(叶片直径/搅拌室直径= 0.65,叶片直径/搅拌室直径,0.10)和挡板 室和具有覆盖位于桨叶下方的连通开口的至少一部分的尺寸的盘被附接到旋转轴或桨叶。

    Blender system having first and second vortices for improved material exchange
    45.
    发明授权
    Blender system having first and second vortices for improved material exchange 有权
    搅拌器系统具有第一和第二涡旋,用于改进材料交换

    公开(公告)号:US09156011B2

    公开(公告)日:2015-10-13

    申请号:US12993479

    申请日:2009-05-25

    摘要: A blender system (1) has a container (3) for holding material to be blended. The container (3) has a first portion (2) with blade member assemblies (6, 8). The assemblies (6, 8) are rotationally driveable around axes of rotation (10, 12). The container has a second portion (4) with a guiding surface (18). A cross-section (38) of the guiding surface (18) which encloses said axes of rotation is a convexly shaped closed curve (20). The direction of the cross-sectional curve (20) is continuously varying direction along the perimeter of the guiding surface (18).

    摘要翻译: 搅拌器系统(1)具有用于保持要混合的材料的容器(3)。 容器(3)具有带有叶片构件组件(6,8)的第一部分(2)。 组件(6,8)围绕旋转轴线(10,12)旋转地驱动。 容器具有带有引导表面(18)的第二部分(4)。 包围所述旋转轴线的引导表面(18)的横截面(38)是凸形的闭合曲线(20)。 横截面曲线(20)的方向是沿引导表面(18)的周边连续变化的方向。

    Apparatus And Method For Crystallization
    47.
    发明申请
    Apparatus And Method For Crystallization 审中-公开
    用于结晶的装置和方法

    公开(公告)号:US20140230810A1

    公开(公告)日:2014-08-21

    申请号:US14183851

    申请日:2014-02-19

    IPC分类号: C13B30/02

    摘要: Apparatuses and methods are provided for crystallization. An apparatus includes a vessel defining an interior, a draft tube positioned in the interior of the vessel and defining an annular space between the draft tube and a side wall of the vessel, a rotor shaft extending along a central axis of the vessel, and a helical screw attached to and configured to rotate with the rotor shaft. A multi-stage apparatus further includes a stage barrier wall separating the vessel into two stages, with a draft tube and helical screw positioned in each of the stages. A method for crystallization includes supplying process material to be crystallized into a vessel, moving the process material through a central portion of the vessel, circulating a portion of the material through an annular space in the vessel, and discharging a portion of the material through an outlet.

    摘要翻译: 提供了用于结晶的装置和方法。 一种装置包括限定内部的容器,定位在容器内部的引流管,并且限定了引流管和容器的侧壁之间的环形空间,沿着容器的中心轴延伸的转子轴,以及 螺旋螺钉连接并配置成与转子轴一起旋转。 多级装置还包括将容器分成两级的舞台障碍壁,其中定位在每一级的引流管和螺旋形螺旋。 一种结晶方法包括将待结晶的处理材料提供到容器中,使处理材料通过容器的中心部分,使材料的一部分循环通过容器中的环形空间,并将一部分材料通过一个 出口。

    Polymerization of high viscosity materials
    48.
    发明授权
    Polymerization of high viscosity materials 有权
    高粘度材料的聚合

    公开(公告)号:US08796401B2

    公开(公告)日:2014-08-05

    申请号:US13225767

    申请日:2011-09-06

    申请人: Yi-Lin Chu

    发明人: Yi-Lin Chu

    IPC分类号: C08F2/01 C08G64/24 B01J19/18

    摘要: The present invention relates to a new polymerization process which is suitable for polymerizing high molecular weight products of high viscosity such as polycarbonates and polystyrenes in reasonable time. The present invention achieves the above-identified object by means of a polymerization process, wherein at least in the final stages of the polymerization reaction, two different types of mechanical mixing means are employed as alternatives, designated first and second mixing means. The first mixing means do generate new surfaces in the material to be treated by means of mechanical mixing and by means of gravity driven mixing, while the second mixing means do generate new surfaces in the material to be treated not by means of mechanical mixing and only by means of gravity driven mixing.

    摘要翻译: 本发明涉及适合在合理时间聚合高粘度高分子量产物如聚碳酸酯和聚苯乙烯的新聚合方法。 本发明通过聚合方法实现上述目的,其中至少在聚合反应的最后阶段,使用两种不同类型的机械混合装置作为替代方案,称为第一和第二混合装置。 第一混合装置通过机械混合和通过重力驱动混合在待处理的材料中产生新的表面,而第二混合装置确实在待处理的材料中不通过机械混合产生新的表面 通过重力驱动混合。

    Method for producing water absorbent resin
    50.
    发明申请

    公开(公告)号:US20140107293A1

    公开(公告)日:2014-04-17

    申请号:US14136339

    申请日:2013-12-20

    IPC分类号: C08J3/24

    摘要: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.