Inorganic membranes using porous cordierite support

摘要

A ceramic fired composite filter media having a uniform pore size, the media consisting essentially of a porous cordierite substrate having a surface having pores of non-uniform diameter, the diameter ranging from <1 to 200 mu m; and a layer of porous ceramic oxide having pores having a uniform diameter bonded to the surface of the cordierite substrate, the layer of ceramic oxide comprised of ceramic oxide particles having a particle size sufficiently large to avoid substantial penetration of the pores in the surface of the cordierite.