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Flat ceramic ultrafilteration membranes and modules coated by the sol-gel technique

机译:溶胶-凝胶技术涂覆的扁平陶瓷超滤膜和组件

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摘要

Sol-Gel techniques are common in preparing inorganic ultrafiltration membranes [1-5]. Since applicable membranes should exibit improved chemical and thermal stability with respect to phase transition, pore s ize and particle growth, we developed a new method for preparing an inorganic ultrafitration membrane made of magnesium aluminium spinel, MgAl_2O_4. This membrane is supported by a flat ceramic microfilter (#alpha# -Al_2O_3) produced via the tape casting process, which offers the opportunity of fimproved processing techniques and new module concepts compared to the widely used extruded multi channel modules. Membrane characteristics and filtration behaviour will shown.
机译:溶胶-凝胶技术在制备无机超滤膜中很常见[1-5]。由于适用的膜应在相变,孔隙大小和颗粒生长方面表现出更高的化学稳定性和热稳定性,因此我们开发了一种新的方法来制备由镁铝尖晶石MgAl_2O_4制成的无机超滤膜。该膜由通过流延铸造法生产的扁平陶瓷微过滤器(#alpha#-Al_2O_3)支撑,与广泛使用的挤出多通道模块相比,它提供了改进的加工技术和新的模块概念的机会。将显示膜特性和过滤行为。

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