Main types of ceramic membranes
There are 3 types of configurations, namely, flat plate, tubular and multi-channel, in which the flat film is mainly used in small-scale industrial production and laboratory research. A tubular membrane is formed in combination with a tubular heat exchanger to increase film loading, but has been gradually withdrawn from industrial applications due to its strength. The size of the applied ceramic membrane usually adopts a multi-channel configuration, that is, a plurality of channels are distributed on a circular cross-section, and the general number of channels is 7, 19, 37, etc.. The main business of the inorganic ceramic membrane preparation technology: using solid particle sintering preparation carrier and microfiltration membrane, prepared by ultrafiltration and nanofiltration membrane, sol-gel glass membrane, using special technology using phase separation (such as chemical vapor deposition, electroless plating, etc.) the preparation of microporous membrane or dense membrane, its basic theory relates to the material subject of colloid and surface chemistry, materials chemistry, solid state ionics, material processing. Because of its high temperature resistance, solvent resistance, acid and alkali resistance, high mechanical strength and easy regeneration, porous ceramic membranes are widely used in food, biological, chemical, energy and environmental protection fields. A group of alumina and special sintering accelerator as the starting material, a systematic and thorough study was carried out in 1400 DEG C firing support prepared by temperature, permeability, mechanical properties and resistance to corrosion performance of uniform support.
