Ceramic filter and process for making it

Details Ceramic filter and process for making it Ceramic filter and process for making it

B - Operations, Transporting

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B01D 39/20 (2006.01) B01D 71/02 (2006.01) B32B 18/00 (2006.01) C04B 35/457 (2006.01) C04B 35/46 (2006.01) C04B 35/486 (2006.01) C04B 35/50 (2006.01) C04B 41/52 (2006.01) C04B 41/89 (2006.01)

Patent

CA 2028692

A ceramic filter having a good permeability and a superior durability, and a process for manufacturing the same. This filter comprises a porous support made of a ceramic, a fine intermediate layer formed on one surface of said support and comprised of at least one kind of particles selected from particles of SnO2, TiO2, ZrO2 or CeO2 and having a particle diameter of not more than 500 .ANG., and a thin film formed on the surface of said fine intermediate layer and comprised of at least one particles selected from particles of SnO2, TiO2, ZrO2 or CeO2 and having a particle diameter of not more than 300 .ANG. and smaller than the particle diameter of the particles that constitute said fine intermediate layer.

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