Ceramic porous membrane, ceramic filter using the same, and meth

Details Ceramic porous membrane, ceramic filter using the same, and meth Ceramic porous membrane, ceramic filter using the same, and meth

1997-12-22

2000-06-20

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Pore-forming

2105101, 21050021, 21050025, C04B 3800

Patent

active

060778008

ABSTRACT:
A ceramic porous membrane in which aggregate particles are bound by binding portions composed of a titania, is provided. The binding portions composed of a titania are contained in an amount of 1-30% by weight based on the aggregate particles, and the aggregate particles comprise an .alpha.-alumina. The porous membrane is formed on a porous substrate to form a ceramic filter. A slurry comprising aggregate particles and 1-70% by weight of binding portions composed of a titania based on the aggregate particles are prepared, and thermally treating the slurry at a temperature of 300-700.degree. C. under ambient atmosphere to form the porous membrane.

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patent: 5106502 (1992-04-01), Goldsmith
patent: 5269926 (1993-12-01), Webster et al.
"Microstructure of TiO.sub.2 Membranes Prepared by Destabilization of colloidal solution Process" Bae et al Hanguk Chaelyo Hakhoechi 6(4), p 357-63, 1996.
"Improvement of Thermal Stability of Porous Nanostructured Ceramic Membranes" Lin et al. Ind Eng. Chem Res. 33 147 p 860-70, 1994.

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