Bipolar membranes with fluid distribution passages
    6.
    发明授权
    Bipolar membranes with fluid distribution passages 失效
    具有流体分配通道的双极膜

    公开(公告)号:US5961796A

    公开(公告)日:1999-10-05

    申请号:US868617

    申请日:1997-06-03

    摘要: The present invention provides a bipolar membrane and methods for making and using the membrane. The bipolar membrane comprises a cation-selective region, an anion-selective region, an interfacial region between the anion-selective region and the cation-selective region, and means for delivering fluid directly into the interfacial region. The means for delivering fluid includes passages that may comprise a fluid-permeable material, a wicking material, an open passage disposed within the membrane or some combination thereof. The passages may be provided in many shapes, sizes and configurations, but preferably deliver fluid directly to the interfacial region so that the rate of electrodialysis is no longer limited by the diffusion of fluid through the cation- or anion-selective regions to the interfacial region.

    摘要翻译: 本发明提供了一种双极膜及其制造和使用方法。 双极膜包括阳离子选择性区域,阴离子选择性区域,阴离子选择区域和阳离子选择性区域之间的界面区域,以及用于将流体直接输送到界面区域的装置。 用于输送流体的装置包括可包括流体可渗透材料,芯吸材料,设置在膜内的开放通道或其某些组合的通道。 通道可以以许多形状,尺寸和构型提供,但优选将流体直接输送到界面区域,使得电渗析的速率不再受流体通过阳离子或阴离子选择性区域扩散到界面区域的限制 。