Inorganic membranes using porous cordierite support
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United States of America Patent
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Jun 30, 1998
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N/A
app pub date -
Jul 31, 1995
filing date -
Jul 31, 1995
priority date (Note) -
Expired
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Abstract
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.
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