Process for removing catalyst impurities from polyols
    117.
    发明授权
    Process for removing catalyst impurities from polyols 失效
    从多元醇中除去催化剂杂质的方法

    公开(公告)号:US5254227A

    公开(公告)日:1993-10-19

    申请号:US793088

    申请日:1991-11-15

    CPC classification number: C08G65/30 B01D53/326 B01D61/48 B01J47/08

    Abstract: A process for removing an ionic impurity from an impure substantially non-aqueous liquid passes the impure non-aqueous liquid through at least one ion exchange compartment containing an ion exchange medium. The ion exchange compartment is separated from an anode compartment and a cathode compartment by ion exchange membranes, where the ion exchange membranes and ion exchange medium having functional groups of the opposite charge as that of the ionic impurity. An electric current is conducted across the ion exchange compartment substantially transverse to the direction of flow of the impure non-aqueous liquid, and transporting the ionic impurity through an ion exchange membrane to separate the ionic impurity from the non-aqueous liquid.

    Abstract translation: 从不纯的基本非水性液体中除去离子杂质的方法使不纯的非水性液体通过至少一个含有离子交换介质的离子交换室。 离子交换室通过离子交换膜从阳极室和阴极室分离,其中离子交换膜和离子交换介质具有与离子杂质相反的电荷的官能团。 电离离子交换室的横截面基本上横贯于不纯的非水液体的流动方向,并通过离子交换膜输送离子杂质以从非水性液体中分离离子杂质。

    Controlled charge chromatography system
    120.
    发明授权
    Controlled charge chromatography system 失效
    受控电荷色谱系统

    公开(公告)号:US5200068A

    公开(公告)日:1993-04-06

    申请号:US819828

    申请日:1992-01-13

    Inventor: Marc D. Andelman

    Abstract: A controlled charge chromatography column for the purification of a fluid-containing material, which column comprises a chromatographic column having an inlet for the introduction of a fluid to be purified and an outlet for the discharge of the purified fluid, and one or more concentrated materials and a flow-through capacitor disposed within the column between the inlet and outlet, the flow-through capacitor means comprising a plurality of spirally wound or stacked washer layers to include a first electrically conductive backing layer, such as of graphite, and a first high surface area conductive layer secured to the backing layer, such as composed of porous carbon fibers and a non-conductive, porous spacer layer to electrically insulate the backing and conductive layer and to permit the flow of material therethrough, the flow-through capacitor to be connected to a DC power source to charge the respective conductive layers with different polarities whereby a fluid containing material through the colum is purified by the electrically conductive stationary phase and the retention thereof onto the high surface area layer and permitting for example the purification of solutions of liquids, such as salt, and providing for the recovery of a purified liquid.

    Abstract translation: 一种用于纯化含液体材料的受控电荷色谱柱,该色谱柱包括具有用于引入待纯化流体的入口和用于排出纯化流体的出口的色谱柱,以及一种或多种浓缩物质 以及设置在入口和出口之间的柱内的流通电容器,所述流通电容器装置包括多个螺旋卷绕或堆叠的垫圈层,以包括第一导电背衬层,例如石墨,以及第一高度 固定到背衬层的表面积导电层,例如由多孔碳纤维和非导电多孔间隔层组成,以使背衬和导电层电绝缘并允许材料流过其中,流通电容器为 连接到DC电源以对具有不同极性的各导电层充电,由此含有流体的材料 通过导管将导电固定相纯化,并将其保留在高表面积层上,并允许例如净化诸如盐的液体溶液,并提供纯化液体的回收。

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