PROCESS PRESSURE CONTROL IN NYLON SYNTHESIS
    11.
    发明申请
    PROCESS PRESSURE CONTROL IN NYLON SYNTHESIS 审中-公开
    尼龙合成过程压力控制

    公开(公告)号:WO2014179036A1

    公开(公告)日:2014-11-06

    申请号:PCT/US2014/034116

    申请日:2014-04-15

    CPC classification number: C08G69/04 C08G69/28

    Abstract: A system is configured for continuous polyamide synthesis. The system includes a vent condenser and a vacuum pump. The vent condenser is coupled to a polymerization finisher. The vent condenser has a liquid reservoir and a vent discharge port above a level of the liquid reservoir. The vacuum pump is coupled to the vent discharge port by an intake line. The vacuum pump has an output port and a rotary shaft. A gaseous mixture proximate the vent discharge port is removed at a rate determined by a speed of the rotary shaft. The vacuum pump is configured to have a liquid ring seal.

    Abstract translation: 一种系统被配置用于连续聚酰胺合成。 该系统包括排气冷凝器和真空泵。 排气冷凝器连接到聚合整理器。 排气冷凝器具有液体储存器和在液体储存器的高度上方的排气口。 真空泵通过进气管线与排气口连接。 真空泵具有输出口和旋转轴。 靠近排气口的气体混合物以由旋转轴的速度确定的速率被去除。 真空泵配置为具有液环密封。

    METHODS AND SYSTEMS FOR THE RECOVERY OF WATER FROM A POLYAMIDE SYNTHESIS PROCESS
    12.
    发明申请
    METHODS AND SYSTEMS FOR THE RECOVERY OF WATER FROM A POLYAMIDE SYNTHESIS PROCESS 审中-公开
    从聚酰胺合成过程中回收水的方法和系统

    公开(公告)号:WO2014179025A1

    公开(公告)日:2014-11-06

    申请号:PCT/US2014/034077

    申请日:2014-04-15

    CPC classification number: C08G69/28 B01J19/00

    Abstract: The present disclosure relates to systems and methods for manufacturing a polyamide. The method can include obtaining, from a reservoir, an aqueous solution comprising a dicarboxylic acid, a diamine, and water having a substantially liquid phase; concentrating the aqueous solution including transforming a portion of the water having a substantially liquid phase to water having a substantially gaseous phase; condensing the water having a substantially gaseous phase into condensed water having a substantially liquid phase; removing at least one impurity from at least one of the condensed water having a substantially liquid phase and the water having a substantially gaseous phase to produce cleaned water having a substantially liquid phase; and reusing the cleaned water having a substantially liquid phase. The system can include, among other things, a reservoir; an evaporator assembly, in fluid communication with the reservoir; a condensation assembly, in fluid communication with the evaporator assembly; a collection assembly; and a conduit network.

    Abstract translation: 本公开涉及制造聚酰胺的系统和方法。 该方法可以包括从储器获得包含二羧酸,二胺和基本上液相的水的水溶液; 浓缩水溶液,包括将具有基本上液相的水的一部分转化为具有基本上气相的水; 将具有基本上气相的水冷凝成具有基本上液相的冷凝水; 从至少一个具有基本上液相的冷凝水中除去至少一种杂质,并且所述水具有基本上气相以产生具有基本上液相的净化水; 并重新使用具有基本上液相的净化水。 除了别的以外,该系统可以包括一个储存器; 与储存器流体连通的蒸发器组件; 与蒸发器组件流体连通的冷凝组件; 收集组件; 和管道网络。

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